Table AT2.TXT - Igneous/Metamorphic Core Log Leg 179 Mineralogy Log: mode Mineralogy Leg 179 Mineralogy Log: mode Leg 179 Textures equant, tabular, platy, elongate, accicular, amoeboidal, angular, globular, Leg 179 Textures euhedral, subhedral, anhedral, chadacrystic, oikocrystic, rounded, deformed, fractured, disseminated, matrix, Leg 179 Textures igneous lamination, schlieren, clusters, subophitic Lower contact Rock type and grain size and grain size (con't) Mineral Shape interstitial (con't) Mineral Habit: concordant seams, discordant seams, disseminated in oxides, disseminated in silicates, massive, interstitial (con't) ophitic, poikilitic, equigranular, intergranular Lithologic Depth Depth Interval Grain Modifier Rock Special Plagioclase Clinopyroxene Olivine Opx/Pig Opaques Sulfides Unidentified Grain size Diff. Total Fabrics MM Facies Comments Interval Leg-Hole Core Section Curation Piece mbsf Thickness Type Form Size Name Modifier Interval Leg-Hole Core Section Piece % Max Min Avg Alt% % Max Min Avg Alt% % Max Min Avg Alt% % Max Min Avg Alt% Unit Leg-Hole Core Section Piece % % % Total Weighted Average fr 100 Alt% Interval Leg-Hole Core Section Piece plagioclase clinopyroxene olivine opx./pig. opaques sulfides Interval Leg-Hole Core Section Piece plagioclase clinopyroxene olivine opx./pig. opaques sulfides Interval Leg-Hole Core Section Piece type dist (uniform, variable) 1 1105A 1R 1 0.27 3B 15.27 0.27 GS IRR Pegmatitic olivine gabbro 1 1105A 1R 1 3B 55 15 2 0 35 60 2 10 10 20 2 40 1 1105A 1R 1 3B 1 101 0.00 1 Oxide-bearing Olivine Gabbro 7.5 1 1105A 1R 1 3B equant-tabular blocky rounded angular 1 1105A 1R 1 3B subhedral subhedral anhedral disseminated 1 1105A 1R 1 3B equigranualr greenschist Thin felsic veins in Pieces 1 and 2. 3 cm thick dipping felsic vein in Piece 3A. 1% oxides disseminated but more abundant near vein. Alteration higher near vein in Piece 3A. 2 1105A 1R 1 0.9 5D 15.90 0.63 GS/M-C P medium gabbro olivine-bearing 2 1105A 1R 1 5D 70 3 1 2 0 30 5 1 3 5 1 1 1 1 20 2 1105A 1R 1 5D 101 2.29 1 Gabbro 1.7 2 1105A 1R 1 5D equant tabular rounded angular 2 1105A 1R 1 5D subhedral subhedral-embayed anhedral dissiminated 2 1105A 1R 1 5D granular-subophitic uniform Massive medium grained, thin tv at 43, 73, 90 cm 3 1105A 1R 1 1.03 6 16.03 0.13 GS/C-M P coarse olivine gabbro 3 1105A 1R 1 6 60 8 4 5 0 35 20 2 10 10 5 4 2 4 20 3 1105A 1R 1 6 1 101 6.70 1 Oxide-bearing Olivine Gabbro 4.5 3 1105A 1R 1 6 equant blocky-subophitic rounded rounded to angular 3 1105A 1R 1 6 subhedral subhedral anhedral disseminated 3 1105A 1R 1 6 subophitic greenschist Thin veins with an alteration patch 35 x 15 mm. Olivines pervasively altered near patch. Patch is orange-brown and follows a microfracture network. 4 1105A 1R 2 1.21 4A 17.29 1.26 GS/M-C C 4 1105A 1R 2 4A 50 8 2 3 10 40 5 1 3 15 4 1105A 1R 2 4A 1 9 100 3.00 0 Not Calculated 11 4 1105A 1R 2 4A equant elongate equant 4 1105A 1R 2 4A anhedral-subhedral euhedral disseminated 4 1105A 1R 2 4A equigranular uniform greenschist Massive, ca. 7mm thick tv at 34 cm, thin (<3mm) actinolite veins at 50.5, 61.5, 67, 75cm in Piece 2. Leucocratic vein at 109.5 cm ib Piece 3. 5 1105A 1R 3 0.66 6 18.11 0.82 GS/C-M P coarse ol-gabbro 5 1105A 1R 3 6 55 15 3 8 15 35 30 3 18 10 10 10 2 7 20 5 1105A 1R 3 6 100 11.40 0 Olivine Gabbro 13.75 5 1105A 1R 3 6 tabular-intergr elongate semi-rounded 5 1105A 1R 3 6 anhedral subhedral anhedral 5 1105A 1R 3 6 equigranular greenschist Grain size change at upper contact (med-coarse) and lower contact (coarse to med), also appears more ol. rich than unuts 4 and 6. Top contac abrupt, lower contact more gradational. 6 1105A 1R 3 1.41 9 18.86 0.75 GS/PG-M P coarse gabbro olivine-bearing 6 1055A 1R 3 9 57 18 2 7 5 40 15 2 10 3 3 2 3 60 6 1105A 1R 3 9 100 8.08 0 Gabbro 4.65 6 1105A 1R 3 9 tabular angular rounded 6 1105A 1R 3 9 subhedral anhedral anhedral 6 1105A 1R 3 9 subophitic greenschist c.g. gabbro, grain size constant. interval contains plagiogranitic dike. 7 1105A 1R 4 0.375 2-3 19.28 0.41 GS/ nr medium gabbro olivine-bearing 7 1105A 1R 4 2-3 55 10 1 4 5 40 26 1 7 5 5 3 1 2 65 7 1105A 1R 4 2-3 100 5.10 0 Olivine Gabbro 8 7 1105A 1R 4 2-3 equant tabular-angular rounded 7 1105A 1R 4 2-3 subhedral subhedral anhedral 7 1105A 1R 4 2-3 granular greenschist Grain size gets coarser when close toward the bottom (olivine also increase), there is a plagiogranitic vein at sec. 4 (27-31mm) and a very thin vein at sec. 4(37mm). 8 1105A 1R 5 1.03 7 21.39 2.12 GS/C-M G medium-pegmatitic gabbro olivine-bearing 8 1105A 1R 5 7 60 20 1 0 40 40 2 5 1 4 1 2 10 8 1105A 1R 5 7 101 0.02 1 Gabbro 2.1 8 1105A 1R 5 7 angular-tabular blocky-embayed rounded angular 8 1105A 1R 5 7 subhedral subhedral-rounded rounded dissiminated 8 1105A 1R 5 7 granular-pegmatitic graded Grain-size increases gradationally toward bottom 9 1105A 1R 5 1.32 9 21.68 0.29 GS & M P 9 1105A 1R 5 9 60 8 2 5 0 35 8 1 5 5 2 5 1 3 20 9 1105A 1R 5 9 0.5 0.5 98 4.96 2 Gabbro 2.15 9 1105A 1R 5 9 equant blocky-subophitic amoeboidal rounded to angular irregular 9 1105A 1R 5 9 subhedral subhedral anhedral disseminated 9 1105A 1R 5 9 granular uniform greenschist 8 mm felsic vein with a 4 cm alteration halo effecting mostly olivine. Elsewhere olivine is fresh. Pyrite and chalcopyrite. Lower 10 cm is more highly altered along a fracture network. 10 1105A 1R 6 0.03 1 21.85 0.17 GS & M P coarse olivine gabbro 10 1105A 1R 6 1 50 10 1 8 0 40 20 2 15 5 10 15 2 2 40 10 1105A 1R 6 1 1 101 10.20 1 Oxide-bearing Olivine Gabbro 6 10 1105A 1R 6 1 equant equant rounded angular 10 1105A 1R 6 1 subhedral euhedral-subhedral rounded disseminated 10 1105A 1R 6 1 granular massive massive equigranular olivine-rich 11 1105A 3R 1 0.9 3 29.60 7.75 m G medium-coarse gabbro olivine-bearing 11 1105A 3R 1 3 60 10 2 6 0 37 8 2 5 0 3 7 2 4 40 11 1105A 3R 1 3 100 5.57 0 Gabbro 1.2 11 1105A 3R 1 3 amoeboidal prismatic rounded 11 1105A 3R 1 3 anhedral subhedral rounded 11 1105A 3R 1 3 granular 5mm thick felsic vein at 58 cm in Section 2. 10mm thick felsic vein at 50-75, 95, 104, 108 cm in Section 3. Very thin felsic vein in Pieces 1, 5, Section 1. 12 1105A 3R 2 0.63 4 30.67 1.07 m-gs nr medium olivine gabbro 12 1105A 3R 2 4 55 8 1 4 5 40 15 2 6 5 5 4 1 2 50 12 1105A 3R 2 4 100 4.70 0 Olivine Gabbro 7.25 12 1105A 3R 2 4 tabular blocky rounded 12 1105A 3R 2 4 subhedral subhedral rounded 12 1105A 3R 2 4 granular greenshist Massive gabbro; felsic vein in Sec. 2 (64 cm) 13 1105A 3R 2 0.91 9 30.95 0.28 gs-tx nr fine-medium banded gabbro olivine-bearing 13 1105A 3R 2 9 63 12 0.5 3 0 35 7 0.5 3 0 2 3 1 2 40 13 1105A 3R 2 9 100 2.98 0 Gabbro 0.8 13 1105A 3R 2 9 amoeboidal prismatic rounded 13 1105A 3R 2 9 anhedral subhedral rounded 13 1105A 3R 2 9 granular variable greenschist Alternating bands of coarse- and fine-grained gabbro. Thin chlorite vein. 14 1105A 3R 3 0.72 8 32.14 1.19 m-gr-tx nr medium-coarse gabbro 14 1105A 3R 3 8 60 10 2 6 10 40 20 2 8 10 0 14 1105A 3R 3 8 100 6.80 0 Gabbro 10 14 1105A 3R 3 8 tabular-equant angular 14 1105A 3R 3 8 subhedral subhedral-interstitial 14 1105A 3R 3 8 inequigranular-subophitic greenshist Medium-coarse grained massive gabbro 15 1105A 4R 1 0.09 1 33.39 0.09 gs nr coarse olivine gabbro 15 1105A 4R 1 1 55 15 5 8 5 40 15 2 7 10 5 5 5 5 20 15 1105A 4R 1 1 100 7.45 0 Olivine Gabbro 7.75 15 1105A 4R 1 1 equant-tabular elongate rounded 15 1105A 4R 1 1 anhedral subhedral anhedral 15 1105A 4R 1 1 inequigranular greenschist Massive, coarse grained. 16 1105A 4R 1 0.175 3 33.48 0.08 gs nr fine-medium gabbro olivine-bearing 16 1105A 4R 1 3 57 4 1 2 0 40 4 2 3 0 3 3 2 2 0 16 1105A 4R 1 3 100 2.40 0 Gabbro 0 16 1105A 4R 1 3 equant elongate rounded 16 1105A 4R 1 3 subhedral euhedral anhedral 16 1105A 4R 1 3 granular Massive, medium grained. 17 1105A 4R 2 0.71 2A 35.19 1.72 gs/m g coarse olivine gabbro 17 1105A 4R 2 2A 52 40 4 10 10 45 40 3 15 0 3 15 2 7 0 17 1105A 4R 2 2A 100 12.16 0 Gabbro 5.2 17 1105A 4R 2 2A angular angular rounded 17 1105A 4R 2 2A subhedral subhedral rounded 17 1105A 4R 2 2A pegmatitic-subophitic A shear zone, ca 2 cm wide, occurs at 80 cm in Section 4R-1, Piece 8. Slightly brecciated at 67-76 cm in Section 4R-1. The modal amount of olivine increases at the interval 47-92 cm in Section 4R-2. 18 1105A 4R 4 0.26 3 37.48 2.29 GS/mode nr medium gabbro olivine-bearing 18 1105A 4R 4 3 60 8 1 4 5 35 8 1 4 0 2 2 1 1 50 18 1105A 4R 4 3 1 98 3.94 2 Oxide-bearing Gabbro 4 18 1105A 4R 4 3 tabular elongate rounded irregular 18 1105A 4R 4 3 subhedral subhedral anhedral disseminated 18 1105A 4R 4 3 granular-subophitic massive, medium grained 19 1105A 5R 1 0.1 1 38.40 0.92 m p medium oxide gabbro 19 1105A 5R 1 1 50 5 1 3 5 35 12 1 5 10 5 5 2 3 50 19 1105A 5R 1 1 10 0.5 100.5 3.78 0.5 Oxide Olivine Gabbro 8.5 19 1105A 5R 1 1 equant angular rounded fine-grained aggregate in veins/seams angular 19 1105A 5R 1 1 anhedral anhedral anhedral aggregates disseminated 1105A 5R 1 1 granular-subophitic with oxide veins greenshist Olivine is iiregularly distributed. Oxides occur in seams and stringers. 20 1105A 5R 1 0.33 1 38.63 0.23 m p 20 1105A 5R 1 1 45 15 3 8 10 30 20 3 8 10 20 25 5 10 20 20 1105A 5R 1 1 5 0.5 100.5 8.42 0.5 Oxide Olivine Gabbro 11.5 20 1105A 5R 1 1 equant elongate rounded irregular irregular 20 1105A 5R 1 1 subhedral subhedral rounded aggregates aggregates in seams 20 1105A 5R 1 1 granular variable greenschist Sufides occur in veins/seams. 21 1105A 5R 1 1.26 8 39.56 0.93 t p medium oxide olivine gabbro 21 1105A 5R 1 8 40 10 1 3 10 40 10 3 5 20 10 8 4 5 60 21 1105A 5R 1 8 10 0.5 100.5 4.11 0.5 Oxide Olivine Gabbro 18 21 1105A 5R 1 8 equant-tabular equant-interstitial rounded fine-grained aggregate in veins/seams 21 1105A 5R 1 8 sunhedral subhedral-subophitic anhedral aggregated 21 1105A 5R 1 8 granular-subophitic with oxide veins greenshist olivine is irregularly distributed. Oxides in irregular veins and variably distributed anlong grain boundaries. 22 1105A 5R 2 0.1 2 39.88 0.32 t p medium gabbro oxide and olivine bearing 22 1105A 5R 2 2 58 20 2 5 20 40 15 1 4 20 2 15 2 1 20 22 1105A 5R 2 2 2 102 4.52 2 Oxide-bearing Gabbro 20 22 1105A 5R 2 2 elongate elongate elongate-tabular angular 22 1105A 5R 2 2 concordant seams rounded rounded seams 22 1105A 5R 2 2 foliated, schlieren greenschist The foliation is well developed. 23 1105A 7R 1 0.34 2A 48.14 8.26 M G Coarse Olivine Gabbro 23 1105A 7R 1 2A 55 10 2 6 2 37 25 3 12 10 5 10 2 5 40 23 1105A 7R 1 2A 0.5 0.5 98 8.24 2 Olivine Gabbro 6.8 23 1105A 7R 1 2A tabular ophitic rounded angular angular 23 1105A 7R 1 2A subhedral anhedral anhedral disseminated disseminated 23 1105A 7R 1 2A ophitic, inequigranular greenschist Massive, nonfoliated olivine gabbro. Interval from 66 - 117 cm is more pervasively altered than most of the interval. All plagiocalse alteration (to 2° plagioclase) is along thin veins and in this interval. Olivine abundance is highly variable on ±10 cm i Olivine abundance is highly variable onver 10 cm intervals from less than 4 to about 10%, but no part of the interval is devoid of olivine. Felsic veins (<2 cm in width) occur at 55 cm and 80 cm in Section 6R-2, and at 1-9 cm in Section 6R-3. Thin greenish seams (<1 mm) are associated with these felsic veins. Also, alteration is more extensive along the veins. The lower boundary of this interval is defined by a change in modal abundance of oxides. 24 1105A 7R 1 0.61 4 48.41 0.27 TM NR coarse-medium oxide gabbro olivine-bearing 24 1105A 7R 1 4 55 10 3 5 40 40 15 2 5 0.5 60 24 1105A 7R 1 4 5 100.5 4.97 0.5 Oxide Gabbro 22.3 24 1105A 7R 1 4 elongated-equant elongated-equant fine-graded aggregate in irregular patches/veins 24 1105A 7R 1 4 subhedral subhedral granular/dissiminated 24 1105A 7R 1 4 granular to foliated greenshist Interval foliated toward base. Irregular distribution of dissimilated oxides throughout. 25 1105A 7R 1 1.29 10 49.09 0.68 TM p medium-coarse Gabbro olivine-bearing 25 1105A 7R 1 10 55 10 1 4 10 40 17 1 8 10 2 5 1 3 70 25 1105A 7R 1 10 0.5 97.5 5.63 2.5 Gabbro 10.9 25 1105A 7R 1 10 tabular tabular-equant rounded interstitial 25 1105A 7R 1 10 subhedral subhedral anhedral interstitial 25 1105A 7R 1 10 granular uniform greenschist massive medium-coarse grained gabbro, iiregular distribution of olivine, the lower contact marked by a deformed fine-grained grabbro (2.5 cm thicker). then the rock become oxide-rich 26 1105A 7R 2 0.24 2 49.37 0.28 M G pegmatitic-coarse Oxide Gabbro 26 1105A 7R 2 2 45 10 2 8 5 40 55 5 30 20 3 5 2 3 50 26 1105A 7R 2 2 10 1 99 17.83 1 Oxide Gabbro 11.75 26 1105A 7R 2 2 subequant blocky-deformed rounded aggregates angular to rounded 26 1105A 7R 2 2 subhedral anhedral anhedral aggregates in seams and stringers interstitial 26 1105A 7R 2 2 foliated greenschist Oxides abundant in interstitial patches and stringers and in this lenses along silicate grain boudaries.Moderately deformed with som large (70 mm long stringers of oxides. Lower contact marked by 1 mm thiuck irregular planar to en echelon band of oxide. 27 1105A 7R 2 0.79 4 49.92 0.55 TX-M G Coarse-pgmatitic gabbro oxide-bearing 27 1105A 7R 2 4 55 10 3 6 5 35 40 5 20 30 3 5 2 3 80 27 1105A 7R 2 4 5 1 99 11.17 1 Oxide Gabbro 15.65 27 1105A 7R 2 4 equant-tabular ophitic-subophitic rounded interstitial aggregates interstitial 27 1105A 7R 2 4 subhedral subhedral abhedral aggregates needles and angular to amoeboidal grains 27 1105A 7R 2 4 inequigranular grenschist Lower contact marked by much greater abundance of oxides. Plagioclase is slightly altered and olivine is pervasive altered in patches near thin vein networks. 28 1105A 7R 3 0.62 4 51.25 1.33 M P coarse-pegmatitic oxide gabbro olivine-bearing 28 1105A 7R 3 4 55 10 2 5 20 35 20 2 10 10 2 10 1 50 28 1105A 7R 3 4 10 102 6.79 2 Oxide Gabbro 15.5 28 1105A 7R 3 4 elongated-equant elongated-equant rounded fine-grained aggregates in interstilial spacies and as irregular veins 28 1105A 7R 3 4 subhedral sunhedral anhedral granular aggregates 28 1105A 7R 3 4 foliated to inequigranular greenshist Strong foliation @ 22-47 cm. Mode of oxides decreases toward bottom of interval. 29 1105A 7R 3 1.02 6 51.65 0.4 GS P medium 29 1105A 7R 3 6 60 8 3 5 0 35 7 2 5 0 4 4 1 2 20 29 1105A 7R 3 6 1 100 4.88 0 Oxide-bearing Gabbro 0.8 29 1105A 7R 3 6 equant tabular rounded interstitial 29 1105A 7R 3 6 subhedral subhedral rounded disseminated 29 1105A 7R 3 6 equigranular, massive Thin actinolite seams (<1mm) occur in Piece 4. Felsic veins ocurr in Piece 5. The lower boundary is defined by changes in grain size. 30 1105A 7R 4 0.37 7 52.19 0.54 GS NR Fine-medium gabbro 30 1105A 7R 4 7 60 12 2 5 0 40 8 1 3 0 0 30 1105A 7R 4 7 0 100 4.20 0 Gabbro 0 30 1105A 7R 4 7 equant equant 30 1105A 7R 4 7 subhedral subhedral 30 1105A 7R 4 7 massive Massive interval defined by finer grain-size. 31 1105A 8R 1 0.47 3 52.87 0.68 T-GS C coarse 31 1105A 8R 1 3 64 10 3 8 0 30 15 3 7 0 5 8 2 5 20 31 1105A 8R 1 3 1 100 7.55 0 Oxide-bearing Olivine Gabbro 1 31 1105A 8R 1 3 elongate elongate rounded fine-grained, equant 31 1105A 8R 1 3 subhedral subhedral rounded aggregates in seams 31 1105A 8R 1 3 slightly foliated Weakly gneissose olivine gabbro defined by changes in garin size and a sheared boundary at the bottom. 32 1105A 8R 1 0.76 8 53.16 0.29 GS NR Fine grained strongly foliated oxide gabbro 32 1105A 8R 1 8 40 5 1 2 20 30 8 1 2 20 0 32 1105A 8R 1 8 30 100 2.00 0 Oxide Gabbro 14 32 1105A 8R 1 8 equant-granular equant-granular granular aggregate 32 1105A 8R 1 8 granular granular-anhedral granular 32 1105A 8R 1 8 Strongly foliated greenshist Curved and sharp contact to undeformed gabbro. Contact from discrodant to parallel to core length. Pophyroblasts elongated parallel to flow direction. Alteration of feldspars assoctated with deformation. 33 1105A 8R 3 0.71 5 55.93 2.77 GS NR coarse-medium gabbro olivine-bearing 33 1105A 8R 3 5 60 8 1 5 10 35 17 1 7 15 3 7 1 3 60 33 1105A 8R 3 5 0.5 98.5 5.65 1.5 Gabbro 13.05 33 1105A 8R 3 5 equant angular rounded interstitial 33 1105A 8R 3 5 subhedral subhedral-anhedral rounded 33 1105A 8R 3 5 granular variable greenschist massive gabbro, the grain size tend to change from medium-coarsed to medium grained from top to bottom, olivine and oxide distribute in patches, a few felsic veins in this interval, the lower mark is fine grained gabbro. 34 1105A 8R 3 0.83 7 56.05 0.12 GS C 34 1105A 8R 3 7 59 8 1 2 0 40 10 1 2 0 0 34 1105A 8R 3 7 1 100 2.00 0 Oxide-bearing Gabbro 0 34 1105A 8R 3 7 tabular rounded irregular 34 1105A 8R 3 7 subhedral subhedral disseminated 34 1105A 8R 3 7 inequigranular Massive gabbro defined by fine to medium grain-size. 35 1105A 8R 4 0.265 2 56.80 0.75 GS NR medium gabbro olivine-bearing 35 1105A 8R 4 2 60 8 1 3 0 40 15 1 3 0 1 2 50 35 1105A 8R 4 2 101 2.99 1 Gabbro 0.5 35 1105A 8R 4 2 equant equant-angular rounded 35 1105A 8R 4 2 subhedral subhedral rounded 35 1105A 8R 4 2 inequigranular greenshist Massive granular to subophitic gabbro with a few irregular distributed olivine. 36 1105A 8R 4 0.6 6 57.13 0.335 GS G 36 1105A 8R 4 6 55 8 1 3 0 40 7 1 2 0 4 3 1 2 20 36 1105A 8R 4 6 1 100 2.56 0 Oxide-bearing Gabbro 0.8 36 1105A 8R 4 6 elongate elongate rounded interstitial 36 1105A 8R 4 6 subhedral subhedral rounded disseminated 36 1105A 8R 4 6 equigranular uniform Massive gabbro defined by medium grain-size. 37 1105A 8R 4 0.72 6 57.25 0.12 GS NR medium gabbro 37 1105A 8R 4 6 60 8 1 2 0 40 10 1 2 0 0 37 1105A 8R 4 6 2 102 2.00 2 Oxide-bearing Gabbro 0 37 1105A 8R 4 6 equant-tabular equant-angular granular-interstitial 37 1105A 8R 4 6 subhedral sunhedral granular-interstitial 37 1105A 8R 4 6 inequigreanular-subophitic greenshist Large irregular grain size variation. 38 1105A 8R 4 0.79 7 57.32 0.07 GS NR fine-medium gabbro olivine-bearing 38 1105A 8R 4 7 53 5 0.1 1 0 40 5 0.5 1 0 7 1.5 0.5 1 20 38 1105A 8R 4 7 0.5 100.5 1.00 0.5 Olivine Gabbro 1.4 38 1105A 8R 4 7 tabular-equant equant rounded 38 1105A 8R 4 7 subhedral subhedral rounded 38 1105A 8R 4 7 granular-subophitic uniform massive, sharp grain size change with lower contact 39 1105A 8R 4 0.93 8 57.46 0.14 GS P Medium-coarse gabbro olivine-bearing 39 1105A 8R 4 8 70 15 1 5 10 30 20 2 5 10 1 50 39 1105A 8R 4 8 101 4.95 1 Gabbro 10.5 39 1105A 8R 4 8 tabular-granular equant-tabular rounded 39 1105A 8R 4 8 subhedral subhedral-anhedral rounded 39 1105A 8R 4 8 inequigranular-subophitic greenshist Large grain-size variation irregularily distributed.. Sulphide grains. 40 1105A 9R 1 0.09 1 57.49 0.09 GS I fine-medium gabbro 40 1105A 9R 1 1 55 3 0.5 1 0 40 3 0.5 1 0 2 3 1 2 10 40 1105A 9R 1 1 3 100 1.02 0 Oxide-bearing Gabbro 0.2 40 1105A 9R 1 1 tabular-equant equant rounded irregular 40 1105A 9R 1 1 subhedral subhedral rounded interstitial 40 1105A 9R 1 1 granular-subophitic uniform Fine grained gabbro 41 1105A 9R 1 0.67 4 58.07 0.58 GS G medium-coarse oxide gabbro 41 1105A 9R 1 4 45 8 1 3 5 50 12 1 4 10 0 41 1105A 9R 1 4 5 100 3.53 0 Oxide Gabbro 7.25 41 1105A 9R 1 4 equant-tabular elongated-interstitial aggregates in veins/interstities 41 1105A 9R 1 4 subhedral euhedral-subhedral interstitial 41 1105A 9R 1 4 inequigranular-subophitic greenshist Upto 1 cm thick shear controlled vein subparallel to length of coree filled with pyroxene. Grain-size irregular with patches of fine-grained gabbro. 42 1105A 9R 1 0.94 8 58.14 0.07 GS NR fine-medium gabbro oxide-bearing 42 1105A 9R 1 8 50 2 0.5 1 0 50 4 0.5 2 0 0 42 1105A 9R 1 8 1 101 1.50 1 Oxide-bearing Gabbro 0 42 1105A 9R 1 8 granular prismatic-granular granular dissiminated 42 1105A 9R 1 8 subhedral subhedral-anhedral disseminated 42 1105A 9R 1 8 granular-inequigranular massive greenshist Relatively fine-grained granular to inequigranular interval. 43 1105A 9R 3 1.24 10 61.51 3.37 GS-M G coarse-pegmatitic oxide gabbro 43 1105A 9R 3 10 60 20 1 10 5 40 40 4 10 10 0 43 1105A 9R 3 10 10 110 10.00 10 Oxide Gabbro 7 43 1105A 9R 3 10 tabular-equant angular-interstitial aggregates as veins and irregular patches ionterstitial to silicates 43 1105A 9R 3 10 subhedral euhedral-subhedral interstitial to silicates, veins and patches 43 1105A 9R 3 10 inequigranular-subophitic massive greenshist Massive coarse to pegmatitic gabbro with oxides in interstities and irregular veins between silicates. Chlorite veins in Sec. 2, 30 cm. 44 1105A 10R 2 0.34 3 63.69 2.18 M-GS NR 44 1105A 10R 2 3 55 8 2 3 0 35 10 1 3 5 7 4 2 3 5 44 1105A 10R 2 3 3 100 3.00 0 Oxide-bearing Olivine Gabbro 2.1 44 1105A 10R 2 3 equant prismatic rounded irregular 44 1105A 10R 2 3 subhedral euhedral rounded interstitial 44 1105A 10R 2 3 equigranular uniform greenschist Amphibole vein, ca 4 mm width, occurs in Section 10R-1, Piece 4. Leucocratic patches occur at edge of Section 10R-1, Piece 2. The lower boundary of this interval is defined by changes in oxide and olivine abundances. Massive, medium grained gabbro 45 1105A 10R 2 0.945 8 64.30 0.605 M NR coarse-pegmatitic oxide gabbro 45 1105A 10R 2 8 50 30 1 10 5 35 25 1 15 5 0 45 1105A 10R 2 8 15 100 12.06 0 Oxide Gabbro 4.25 45 1105A 10R 2 8 prismatic-tabular subhedral-angular interstitial 45 1105A 10R 2 8 subhedral subhedral interstitial 45 1105A 10R 2 8 inequigranular uniform greenshist Massive oxide gabbro with the oxides filling interstities between silicates. Olivine not seen. Oxide microgabbro vein in peice 5. 46 1105A 10R 3 0.95 9 65.70 1.41 M NR 46 1105A 10R 3 9 62 10 3 5 0 35 20 2 6 15 2 10 3 4 10 46 1105A 10R 3 9 1 100 5.33 0 Oxide-bearing Gabbro 5.45 46 1105A 10R 3 9 tabular-equant equant rounded irregular 46 1105A 10R 3 9 euhedral euhedral rounded interstirial 46 1105A 10R 3 9 equigranular variable greenschist Olivine and oxide are more abundant in Pieces 1 and 2, Piece 8, respectively, in Section 10R-3.Felsic veins in Pieces 4 and 5 in Section 10R-3. 47 1105A 10R 3 1.33 14 66.08 0.38 GS P coarse olivine gabbro oxide-bearing 47 1105A 10R 3 14 60 15 2 5 5 30 30 3 10 5 10 12 2 7 50 47 1105A 10R 3 14 2 102 6.70 2 Oxide-bearing Olivine Gabbro 9.5 47 1105A 10R 3 14 equant-tabular equant-angular rounded interstitial aggregate 47 1105A 10R 3 14 subhedral-anhedral angular-euhedral angular-rounded interstitial 47 1105A 10R 3 14 inequigranular uniform greenshist Massive coarse-grained interval with a few interstitial oxide patches and high concentration of large olivine. 48 1105A 11R 1 0.03 1 67.03 0.95 GS NR fine aplitic vein/felsic vein 48 1105A 11R 1 1 70 0.2 30 0.2 48 1105A 11R 1 1 1 101 0.20 1 Oxide-bearing Gabbro 0 48 1105A 11R 1 1 tabular tabular 48 1105A 11R 1 1 euhedral subhedral 48 1105A 11R 1 1 equigranular variable greenshist Very fine-grained aplitic vein. Part of Piece 14 (10R-3) is composed of foliated and foliated fine-grained oxide gabbro with plagioclase, pyroxenes, and oxide minerals in medium-grained inequigranular texture. 49 1105A 11R 1 0.44 5 67.44 0.41 GS G medium-pegmatitic olivine gabbro oxide-bearing 49 1105A 11R 1 5 55 40 2 10 5 40 30 2 10 5 5 6 1 3 60 49 1105A 11R 1 5 3 103 9.65 3 Oxide-bearing Olivine Gabbro 7.75 49 1105A 11R 1 5 tabular tabular rounded interstitial 49 1105A 11R 1 5 anhedral sunhedral rounded interstitial 49 1105A 11R 1 5 laminated by alignment pf pyroxene, plagioclase, and oxides in strings. variable greenshist Laminated gabbro. Irregular distribution of grain-size from medium to pegmatitic. 50 1105A 11R 1 0.67 6 67.67 0.23 GS G medium oxide gabbro olivine-bearing 50 1105A 11R 1 6 53 10 1 3 5 35 8 3 5 0 2 4 2 3 5 50 1105A 11R 1 6 10 0.5 100.5 3.78 0.5 Oxide Gabbro 2.75 50 1105A 11R 1 6 tabular-equant prismatic equant irregular 50 1105A 11R 1 6 subhedral subhedral rounded disseminated in silicates and in grain boundaries 50 1105A 11R 1 6 equigranular variable The upper half of this interval is slightly more coarse-grained than the lower half. Coarse-grained patch occurs in Piece 5. Thin greenish vein at 50 cm in Piece 4. This interval is defined by medium-grain size 51 1105A 12R 1 0.4 4 71.70 4.03 T-TX NR medium-coarse oxide gabbro olivine-bearing 51 1105A 12R 1 4 54 20 3 8 5 35 40 2 10 15 6 18 3 10 20 51 1105A 12R 1 4 5 100 8.86 0 Oxide Olivine Gabbro 9.15 51 1105A 12R 1 4 tabular-equant prismatic rounded irregular 51 1105A 12R 1 4 subhedral subhedral rounded interstitial 51 1105A 12R 1 4 equigranular variable greenshist Grain sizes are not uniform, and vary from coarse-grained to pegmatitic. Strong modal banding in 12R-1, Pc. 2, at the cm scale. 52 1105A 12R 1 0.68 9 71.98 0.28 T-TX NR 52 1105A 12R 1 9 10 3 <0.1 <0.1 20 10 7 <0.1 <0.1 50 0.2 52 1105A 12R 1 9 3 0.5 77 100.7 #VALUE! 0.7 Not Calculated 7 52 1105A 12R 1 9 elongated-tabular elongated-equant elongated irregular 52 1105A 12R 1 9 subhedral subhedral rounded disseminated 52 1105A 12R 1 9 cataclastic with augen clasts variable greenshist Deformed, mylonitic zone with alternating light(felsic) and dark colored layers (1-10 mm in thickness). These layers have thin, extension cracks filled with greenish minerals (chlorite+actinolite?). Elongated pyroxene and olivine augen clasts are set in the foliated, aphanitic matrix. 53 1105A 12R 1 0.81 11 72.11 0.13 GS T fine gabbro 53 1105A 12R 1 11 50 0.5 50 0.5 0 53 1105A 12R 1 11 0 100 0.50 0 Gabbro 0 53 1105A 12R 1 11 tabular tabular 53 1105A 12R 1 11 subhedral subhedral 53 1105A 12R 1 11 equigranular variable greenshist Part of interval (0.5 cm) composed of medium-grained oxide and olivine gabbro. 54 1105A 12R 2 0.36 3 73.13 1.02 GS P coarse-pegmatitic gabbro 54 1105A 12R 2 3 60 20 2 10 0 40 30 2 10 0 0 54 1105A 12R 2 3 0 100 10.00 0 Gabbro 0 54 1105A 12R 2 3 tabular-interstitial interstitial 54 1105A 12R 2 3 subhedral subhedral 54 1105A 12R 2 3 poikilitic/ophitic uniform Pegmatitic interval characterized by poikilitic texture. Little or no oxides and olivines. 55 1105A 12R 2 0.77 10 73.54 0.41 GS NR fine gabbro 55 1105A 12R 2 10 50 0.5 0 50 0.5 0 0 55 1105A 12R 2 10 0 100 0.50 0 Gabbro 0 55 1105A 12R 2 10 prismatic prismatic 55 1105A 12R 2 10 subhedral subhedral 55 1105A 12R 2 10 granular uniform Massive fine-grained gabbro without any exciting features. 56 1105A 12R 3 0.61 8 74.86 1.32 GS NR fine-medium banded gabbro olivine- and oxide-bearing 56 1105A 12R 3 8 50 10 0.5 0.7 0 50 15 0.5 0.7 0 2 10 1 50 56 1105A 12R 3 8 2 104 0.69 4 Oxide-bearing Gabbro 1 56 1105A 12R 3 8 prismatic-tabular prismatic-interstitial rounded interstitial aggregates 56 1105A 12R 3 8 granular-subhedral granular-subhedral rounded interstitial 56 1105A 12R 3 8 granular to inequigranular variable Banded unit composed of a dominating fine-grained gabbro and a medium grained gabbro. The latter occurs in Sec. 2 (Pc. 11 and12, 78-93 cm; Pc 14, 100-111 cm) and Sec. 3 (Pc 1, 1-9 cm; Pc. 6, 40-46). Strong banding (uoto 2-3 cm scale) is seen in Sec 2 (Pc. 14) and Sec. 3 (Pc. 1). The banding can be described as rhytmic grain-size layering without significant modal variability. Bleached alteration vein present in Sec. 3 (Pc. 1). 57 1105A 13R 2 0.27 1 77.97 3.11 GS G 57 1105A 13R 2 1 60 13 2 4 0 35 12 1 3 0 3 7 2 3 20 57 1105A 13R 2 1 2 0.5 100.5 3.61 0.5 Oxide-bearing Gabbro 0.6 57 1105A 13R 2 1 tabular-equant prismatic equant irregular 57 1105A 13R 2 1 subhedral euhedral rounded disseminated 57 1105A 13R 2 1 inequigranular variable Oxide rich zone, ca 2 cm width, occur at 70 cm in Section 13R-1, Piece 3. The lower boundary is defined by changes in grain-size and modal abundance of oxide. 58 1105A 13R 2 1.32 4 79.02 1.05 GS-M NR coarse oxide gabbro olivine-bearing 58 1105A 13R 2 4 50 20 1 5 5 45 20 2 5 5 1 1 50 58 1105A 13R 2 4 5 101 4.96 1 Oxide Gabbro 5.25 58 1105A 13R 2 4 tabular-prismatic prismatic rounded interstitial 58 1105A 13R 2 4 subhedral subhedral resorped interstitial 58 1105A 13R 2 4 inequigranular uniform greenshist Massive medium-grained interval with parts containing distinct modal banding: Sec. 2, Pc. 2, 38-50 cm (mafic band); Sec 2, Pc. 4, 110-115 cm (irregular banding). 59 1105A 13R 3 0.43 3 79.47 0.45 GS G medium banded olivine gabbro oxide-bearing 59 1105A 13R 3 3 50 15 2 5 5 45 10 2 5 5 5 2 30 59 1105A 13R 3 3 1 101 4.85 1 Oxide-bearing Olivine Gabbro 6.25 59 1105A 13R 3 3 tabular-prismatic prismatic rounded interstitial aggregates 59 1105A 13R 3 3 subhedral subhedral resorped interstitial 59 1105A 13R 3 3 inequigranular variable greenshist Layered medium-grained interval with distinct modal banding: Sec. 3, Pc. 1-3 (banding defined by extreme grain-size variation from fine-grained to pegmatitic particular well developed at 27-33 cm. 60 1105A 13R 4 0.26 2 80.70 1.23 GS-M G 60 1105A 13R 4 2 62 15 2 4 0 35 35 2 3 0 3 5 1 3 5 60 1105A 13R 4 2 0.5 0.5 101 3.62 1 Gabbro 0.15 60 1105A 13R 4 2 tabular-equant prismatic equant irregular 60 1105A 13R 4 2 subhedral euhedarl rounded disseminated 60 1105A 13R 4 2 inequigranular variable Medium to coarse-grained massive gabbro. 61 1105A 13R 4 0.43 3 80.87 0.17 GS G pegmatitic gabbro oxide- and olivine-bearing 61 1105A 13R 4 3 60 30 3 10 0 40 20 3 8 0 1 2 30 61 1105A 13R 4 3 1 102 9.13 2 Oxide-bearing Gabbro 0.3 61 1105A 13R 4 3 equant-tabular equant-interstitial rounded interstitial 61 1105A 13R 4 3 subhedral subhedral resorped interstitial 61 1105A 13R 4 3 inequigranular variable Pegmatic vein/patch in medium-grained gabbro. Contact irregular and strongly discordant to length of core. 62 1105A 13R 4 0.84 6 81.28 0.41 GS G 62 1105A 13R 4 6 59 7 2 4 0 40 10 1 3 0 1 2 1 2 20 62 1105A 13R 4 6 0.5 100.5 3.58 0.5 Gabbro 0.2 62 1105A 13R 4 6 tabular prismatic rounded irregular 62 1105A 13R 4 6 subhedral subhedral rounded disseminated 62 1105A 13R 4 6 equgranular uniform Massive gabbro defined by medium-grain size. 63 1105A 14R 1 0.27 2 81.27 -0.01 GS SH medium gabbro oxide- and olivine-bearing 63 1105A 14R 1 2 53 20 2 7 0 45 25 2 5 0 2 1 20 63 1105A 14R 1 2 0.5 0.5 101 5.98 1 Gabbro 0.4 63 1105A 14R 1 2 prismatic-tabular prismatic rounded interstitial irregular 63 1105A 14R 1 2 subhedral subhedral rounded interstitial disseminated 63 1105A 14R 1 2 inequigranular variable Massive medium-grained gabbro. Piece 1 in Section 14R-1 is fine-grained gabbro, and appears to be a rock fragment fallen off the wall. 64 1105A 14R 1 0.65 3C 81.65 0.38 GS SH/C medium gabbro 64 1105A 14R 1 3C 60 13 1 4 10 37 16 2 5 5 1 2 1 1 50 64 1105A 14R 1 3C 98 4.35 2 Gabbro 8.35 64 1105A 14R 1 3C equant-tabular prismatic rounded 64 1105A 14R 1 3C subhedral subhedral rounded 64 1105A 14R 1 3C granular variable greenschist Massive medium-grained gabbro. 65 1105A 14R 1 0.81 3D 81.81 0.16 GS SH/C Coarse-pegmatitic oxide gabbro 65 1105A 14R 1 3D 50 12 2 8 2 30 25 5 12 10 2 3 1 2 50 65 1105A 14R 1 3D 17 1 100 9.32 0 Oxide Gabbro 5 65 1105A 14R 1 3D equant-tabular angular rounded interstitial subrounded 65 1105A 14R 1 3D subhedral subhedral anhedral seams inclusions 65 1105A 14R 1 3D pegmatitic greenschist Sulfides abundant near contact. Alteration is concentrated near chlorite actinolite veins 66 1105A 14R 2 0.37 3 82.78 0.97 GS P medium gabbro 66 1105A 14R 2 3 60 13 1 4 10 37 16 2 5 5 1 2 1 1 50 66 1105A 14R 2 3 98 4.35 2 Gabbro 8.35 66 1105A 14R 2 3 equant-tabular prismatic rounded 66 1105A 14R 2 3 subhedral subhedral rounded 66 1105A 14R 2 3 granular variable greenschist massive medium-grained gabbro with occasionall coarse-grained gabbro patches, some place with deformation and alteration bands, the lower contact is marked by sharp grain size change. 67 1105A 14R 3 0.43 3 84.07 1.29 M SH/IRR medium-coarse gabbro olivine-bearing 67 1105A 14R 3 3 50 20 1 5 5 50 15 2 5 5 1 3 1 2 50 67 1105A 14R 3 3 101 4.97 1 Gabbro 5.5 67 1105A 14R 3 3 prismatic-tabular prismatic-poikilitic rounded 67 1105A 14R 3 3 subhedral subhedral-poikilitic rounded 67 1105A 14R 3 3 poikilitic uniform Massive interval characterized by a relatively coarse grain-size and poikilitic pyroxenes. 68 1105A 14R 3 0.53 3 84.17 0.1 GS/M SH/IRR 68 1105A 14R 3 3 48 10 2 5 2 40 10 10 10 10 5 8 5 3 30 68 1105A 14R 3 3 7 0.5 100.5 7.04 0.5 Oxide Olivine Gabbro 6.46 68 1105A 14R 3 3 tabular blocky rounded aggregates interstitial 68 1105A 14R 3 3 subhedral subhedral anhedral patchy aggregates interstitial/globules 68 1105A 14R 3 3 deformed irregular greenschist Lower contact marked by 0.5 cm thick oxide band, upper contact by abundant but patchy oxides. Oxides occur in irregular patches. Distinct fabric in elongation of silicate phases. 69 1105A 14R 3 1.45 12 85.09 0.92 GS G 69 1105A 14R 3 12 60 10 3 6 5 40 10 3 6 20 69 1105A 14R 3 12 0.5 100.5 6.00 0.5 Gabbro 11 69 1105A 14R 3 12 tabular prismatic irregular 69 1105A 14R 3 12 subhedral subhedral interstitial 69 1105A 14R 3 12 equigranular variable greenschist Cross-cutting cracks filled with chlorite in Pieces 7, 8, and 10. Massive gabbro with medium to coarse garin size. 70 1105A 15R 1 0.085 2 86.09 1.00 M NR medium-pegmatitic gabbro olivine-bearing 70 1105A 15R 1 2 60 15 2 4 5 40 20 3 6 5 0.5 1 50 70 1105A 15R 1 2 100.5 4.78 0.5 Gabbro 5.25 70 1105A 15R 1 2 prismatic-tabular equant-interstitial rounded 70 1105A 15R 1 2 subhedral-anhedral euhedral-poikilitic anhedral 70 1105A 15R 1 2 inequigranular-poikilitic greenschist Pocket of pegmatic gabbro @ 46-69 cm (Sec. 4, Pc. 5-6) with chlorite veins and associated oxide minerals. 71 1105A 15R 1 1.11 13 87.11 1.025 GS-M I-C coarse-pegmatitic oxide gabbro 71 1105A 15R 1 13 70 40 10 15 5 30 30 10 20 10 0 71 1105A 15R 1 13 3 103 16.50 3 Oxide-bearing Gabbro 6.5 71 1105A 15R 1 13 prismatic-tabular prismatic irregular 71 1105A 15R 1 13 subhedral sunhedral interstitial veins along silicate grain boundaries 71 1105A 15R 1 13 equigranular uniform greenschist Uniform coarse-pegmatic interval with the oxides primary concentrated between 8-35 cm (Sec. 1, Pc. 3). 72 1105A 15R 1 1.36 15 87.36 0.25 GS-M I 72 1105A 15R 1 15 63 10 2 4 0 35 10 3 4 10 1 3 1 2 5 72 1105A 15R 1 15 1 0.5 100.5 3.98 0.5 Oxide-bearing Gabbro 3.55 72 1105A 15R 1 15 equant-tabular prismatic equant irregular irregular 72 1105A 15R 1 15 subhedral euhedral rounded interstitial diseminated in silicates 72 1105A 15R 1 15 equigranular variable greeschist Coarse-grained gabbro at the bottom of this interval (ca. 5 cm). 73 1105A 15R 3 0.29 2 89.26 1.90 GS P 73 1105A 15R 3 2 60 5 0.1 0.5 0 40 5 0.1 0.5 0 73 1105A 15R 3 2 100 0.50 0 Gabbro 0 73 1105A 15R 3 2 equant equant 73 1105A 15R 3 2 subhedral subhedral 73 1105A 15R 3 2 equigranular variable Coarse-grained olivine gabbro patch at 111-140 cm in Section 15R-3. Cracks filled with chlorite occur in Section 15R-3, Pieces 7, 9A, and Section 15R-4, Piece 1. This interval is characterized by fine-grain size. 74 1105A 15R 3 0.63 5 89.60 0.34 GS NR coarse gabbro olivine- and oxide-bearing 74 1105A 15R 3 5 60 15 3 5 0 40 30 21 10 10 0.5 8 1 4 80 74 1105A 15R 3 5 0.5 101 6.99 1 Gabbro 4.4 74 1105A 15R 3 5 equant-tabular prismatic-interstitiel rounded irregular 74 1105A 15R 3 5 sunhedral subhedral-poikilitic rounded interstitial 74 1105A 15R 3 5 inequigranular-poikilitic uniform greenshist Coarse-grained uniform interval. 75 1105A 15R 3 0.76 8 89.73 0.13 GS-TX NR 75 1105A 15R 3 8 60 5 0.1 0.5 0 39 3 0.1 0.5 0 75 1105A 15R 3 8 1 0.5 100.5 0.50 0.5 Oxide-bearing Gabbro 0 75 1105A 15R 3 8 equant equant irregular irregular 75 1105A 15R 3 8 subhedral subhedral disseminated disseminated 75 1105A 15R 3 8 equigranular uniform Massive gabbro interval characterized by fine-grain size. 76 1105A 16R 1 0.64 5 91.24 1.51 TX-GS G-NR medium foliated and banded olivine gabbro oxide-bearing 76 1105A 16R 1 5 50 30 1 5 5 45 15 1 5 10 5 1 70 76 1105A 16R 1 5 0.5 100.5 4.80 0.5 Olivine Gabbro 10.5 76 1105A 16R 1 5 tabular elongated elongated irregular 76 1105A 16R 1 5 anhedral anhedral anhedral interstitial 76 1105A 16R 1 5 foliated uniform greenschist Foliated and banded interval with porphyroblastic pyroxenes. Mafic band (3 cm thick) at 20-26 cm (Sec. 1, Pc. 3). 77 1105A 16R 1 1.29 13 91.89 0.65 GS P 77 1105A 16R 1 13 60 5 1 2 0 40 7 0.5 2 10 77 1105A 16R 1 13 0.5 100.5 2.00 0.5 Gabbro 4 77 1105A 16R 1 13 tabular elongated irregular 77 1105A 16R 1 13 subhedral subhedral disseminated 77 1105A 16R 1 13 foliated uniform greenschist Fine to medium grained gabbro with moderately developed foliation. 78 1105A 16R 2 0.86 10 92.79 0.90 GS-TX NR medium-coarse foliated and banded olivine gabbro oxide-bearing 78 1105A 16R 2 10 50 6 1 3 0 45 30 1 4 5 5 1 60 78 1105A 16R 2 10 1 101 3.35 1 Oxide-bearing Olivine Gabbro 5.25 78 1105A 16R 2 10 granular prismatic-elongated rounded irregular 78 1105A 16R 2 10 anhedral subhefral anhedral interstitial 78 1105A 16R 2 10 granular-foliated variable greenschist Medium-coarse variably foliated and occassionally banded interval. Strongly foliation and banding in Pc. 2 (Sec. 2) associated with an increasing amount of oxides and porphyroblastic pyroxenes. 79 1105A 16R 3 0.16 2 93.50 0.71 GS-M NR 79 1105A 16R 3 2 59 20 5 10 0 40 20 3 8 10 79 1105A 16R 3 2 0.5 0.5 100 9.19 0 Gabbro 4 79 1105A 16R 3 2 tabular-prismatic tabular-prismatic irregular irregular 79 1105A 16R 3 2 subhedral subhedral interstitial disseminated 79 1105A 16R 3 2 granular-subophitic variable greenschist Piece 2 in Section 16R-3 at the bottom of this interval is richer in oxide. 80 1105A 16R 3 0.5 6 93.84 0.34 GS-M NR medium olivine gabbro 80 1105A 16R 3 6 60 10 1 3 0 40 15 1 3 5 4 2 0.5 1 50 80 1105A 16R 3 6 104 2.92 4 Gabbro 4 80 1105A 16R 3 6 granular-tabular prismatic-poikilitic irregular 80 1105A 16R 3 6 subhedral-anhedral suhedral-poikilitic anhedral 80 1105A 16R 3 6 equigranular-poikilitic greenschist Massive equigranular to poikilitic gabbro. 81 1105A 16R 3 0.56 7 93.90 0.06 GS-M NR coarse oxide olivine gabbro 81 1105A 16R 3 7 50 8 2 4 0 35 12 2 6 10 4 6 1 3 50 81 1105A 16R 3 7 10 2 101 4.74 1 Oxide Gabbro 5.5 81 1105A 16R 3 7 granular granular-prismatic rounded irregular irregular 81 1105A 16R 3 7 subhedral subhedral anhedral interstitial anhedral 81 1105A 16R 3 7 inequigranular uniform greenschist Equigranular gabbro with several sulphice grains, including deposition aling alteration craks in pyroxene(?). 82 1105A 17R 1 0.49 4 96.09 2.19 M-GS P gabbro 82 1105A 17R 1 4 60 10 1 4 0 40 5 1 3 0 82 1105A 17R 1 4 0.5 100.5 3.60 0.5 Gabbro 0 82 1105A 17R 1 4 tabular-prismatic prismatic irregular 82 1105A 17R 1 4 suhedral subhedral disseminated 82 1105A 17R 1 4 equigranular variable A 4 cm thick interval of pegmatitic gabbro with 1-2 % oxide occurs at the bottom of this interval. The rest portion is composed of medium grained, massive gabbro. 83 1105A 17R 1 0.64 5 96.24 0.15 M NR oxide gabbro 83 1105A 17R 1 5 37 12 2 3 10 35 12 2 5 10 2 2 1 1 40 83 1105A 17R 1 5 25 1 100 6.38 0 Oxide Gabbro 24 83 1105A 17R 1 5 deformed deformed rounded aggregates interstitial 83 1105A 17R 1 5 anhedral anhedral anhedral seams/patches 83 1105A 17R 1 5 deformed, subophitic greenschist Upper contact marked by a contiuous oxide seam, but oxides appear in 3-5 cm above. Oxide abundance is highly variable (20%-90% locally). Plagioclase is locally altered to milky white secondary plagioclase. There is a moderately strong deformational fabric reflected in grain size reduction and streched grains. 84 1105A 17R 3 0.21 3 98.66 2.42 GS NR medium gabbro olivine-bearing 84 1105A 17R 3 3 60 10 2 3 0 40 15 2 4 10 1 2 0.5 1 50 84 1105A 17R 3 3 101 3.38 1 Gabbro 4.5 84 1105A 17R 3 3 equant-tabular prismatic-subophitic irregular 84 1105A 17R 3 3 subhedral subhedral anhedral 84 1105A 17R 3 3 equigranular-subophitic greenschist Homogeneous gabbro with modally defined layering/banding @ 65-78 cm (Sec. 1, Pc. 7A). Chlorite veins @ 80 cm (Sec. 1, Pc. 7A). 85 1105A 17R 3 1.47 13 99.92 1.26 M-TX-GS NR gabbro 85 1105A 17R 3 13 57 40 3 15 10 40 40 3 15 10 2 20 5 8 20 85 1105A 17R 3 13 1 0.5 100.5 14.86 0.5 Oxide-bearing Gabbro 10.1 85 1105A 17R 3 13 brocky blocky rounded irregular irregular 85 1105A 17R 3 13 subhedral subhedral subhedral interstitial disseminated 85 1105A 17R 3 13 granular-subophitic variable greenschist Olivine is not evenly distributed throughout, occurring mainly at 30-41 cm, 89-92 cm, 129-144 cm in Section 17R-3. 86 1105A 17R 4 0.56 6 100.51 0.56 M-TX-GS NR medium-coarse oxide olivine gabbro 86 1105A 17R 4 6 35 5 1 3 10 40 40 3 10 40 5 7 3 1 90 86 1105A 17R 4 6 20 1 101 6.38 1 Oxide Olivine Gabbro 24 86 1105A 17R 4 6 recrystallized deformed stretched aggregates interstitial 86 1105A 17R 4 6 anhedral anhedral anhedral seams/patches 86 1105A 17R 4 6 deformed to pegmatitic greenschist Contacts not recovered. Strongly deformed fabric, olivines nearly completely altered and stretched. Modes highly variable (plagioclase 20-50%, oxides 80% to 10%). Plagioclase recrystallized in places, also altered to milky white seconndary plagioclase. Intensity of alteration increase downward. 87 1105A 17R 4 0.97 13 100.92 0.37 GS-M NR medium gabbro 87 1105A 17R 4 13 50 10 1 2 0 50 12 1 2 0 0 87 1105A 17R 4 13 0 100 2.00 0 Gabbro 0 87 1105A 17R 4 13 tabular prismatic-poikilitic 87 1105A 17R 4 13 subhedral subhedral 87 1105A 17R 4 13 equigranular uniform Massive equigranular gabbro interval. 88 1105A 18R 1 0.37 4B 100.57 0.34 M-TX P gabbro 88 1105A 18R 1 4B 58 15 3 7 10 40 20 2 5 10 1 5 1 4 40 88 1105A 18R 1 4B 0.5 0.5 100 6.16 0 Gabbro 10.2 88 1105A 18R 1 4B brocky blocky rounded irregular irregular 88 1105A 18R 1 4B subhedral subhedral suhedral seams disseminated 88 1105A 18R 1 4B granular-subophitic variable greenschist Grain sizes are 10-20 mm in Piece 1, while they are less than 8 mm in Pieces 2, 3, and 4. The lower contact is defined by a sharp increase in oxide abundance. 89 1105A 18R 2 0.69 8 102.31 1.74 TX-M NR fine-coarse oxide olivine gabbro 89 1105A 18R 2 8 45 20 2 8 10 35 35 2 8 20 8 14 3 6 80 89 1105A 18R 2 8 15 103 7.82 3 Oxide Olivine Gabbro 17.9 89 1105A 18R 2 8 prismatic-tabular prismatic rounded irregular 89 1105A 18R 2 8 subophitic subophitic anhedral seams/veins 89 1105A 18R 2 8 equigranular and irregularly foliated highly variable greenschist Highly variable interval of oxide gabbro. Variably foliated and altered. Oxides in seams and veins between silicates. Highly variably grain size from 'bands' of fine granied gabbro @ 17-26 cm (Sec. 2, Pc. 3-4) and 56-69 cm (Sec. 2, Pc 8). Orange alteration product after mainly olivine and pyroxene (low-Ca pyroene?) related to oxide net veining. Calcite vein at 85 cm (Sec. 1, Pc. 8). 90 1105A 19R 2 0.95 8A 107.65 5.34 GS-TX P coarse oxide gabbro olivine-bearing 90 1105A 19R 2 8A 50 20 2 6 5 45 25 2 5 10 1 3 1 2 50 90 1105A 19R 2 8A 5 101 5.49 1 Oxide Gabbro 7.5 90 1105A 19R 2 8A prismatic-deformed prismatic-tabular angular-irregular irregular 90 1105A 19R 2 8A subhedral subhedral-poikilitic anhedral seams/veins 90 1105A 19R 2 8A equigranular-poikilitic and weekly foliated greenschist Variably oxide gabbro interval with irregular distribution of oxide seams and sparsely olivine grains. Oxide minerals increases markedly from Sec 1 (Pc. 1, 1 cm). 91 1105A 19R 2 1.12 9 107.82 0.17 GS-TX P gabbro 91 1105A 19R 2 9 56 3 0.5 1 10 40 3 0.5 1 10 3 3 0.5 1 20 91 1105A 19R 2 9 1 100 1.00 0 Oxide-bearing Gabbro 10.2 91 1105A 19R 2 9 equant equant rounded irregular 91 1105A 19R 2 9 subhedral subhedral seams 91 1105A 19R 2 9 equigranular uniform greenschist Massive olivine gabbro interval defined by fine-grain size. 92 1105A 20R 1 0.74 9 110.54 2.72 M-TX G medium olivine gabbro oxide-bearing 92 1105A 20R 1 9 55 25 3 5 5 40 12 3 5 5 5 4 1 2 50 92 1105A 20R 1 9 1 101 4.85 1 Oxide-bearing Olivine Gabbro 7.25 92 1105A 20R 1 9 equant-elongated prismatic irregular irregular 92 1105A 20R 1 9 subhedral subhedral anhedral seams/veins 92 1105A 20R 1 9 equigranular uniform greenschist Massive olivine gabbro with an uneven distribution of oxide seams and veinlets through out interval. 93 1105A 21R 1 0.81 7 111.61 1.07 M NR gabbro 93 1105A 21R 1 7 58 20 3 10 0 40 20 2 12 0 1 7 3 5 10 93 1105A 21R 1 7 0.5 0.5 100 10.76 0 Gabbro 0.1 93 1105A 21R 1 7 tabular blocky rounded equant irregular 93 1105A 21R 1 7 subhedral subhedral subhedral rounded dissiminated 93 1105A 21R 1 7 granular-subophitic variable greenschist Massive gabbro interval defined by coarse-grain size. Olivine is more abundant in Section 21-1, Piece 3 (ca. 3%). Thin calcite veins occur in Section 21R-1, Pieces 3 and 4, and thin chlorite veins in Section 21R-1, Pieces 5 and 7. Rusty brown alteration zone (5 mm wide) along the calcite veins. 94 1105A 21R 1 0.94 8 111.74 0.13 M NR medium oxide gabbro olivine-bearing 94 1105A 21R 1 8 50 15 1 4 5 30 14 1 3 15 3 8 0.5 1 50 94 1105A 21R 1 8 20 103 3.53 3 Oxide Gabbro 8.5 94 1105A 21R 1 8 tabular prismatic irregular-rounded iregular 94 1105A 21R 1 8 subhedral subhedral anhedral seams/veins 94 1105A 21R 1 8 inequigranular-poikilitic variable greenshist Oxide-rich interval with irregular modal distribution. 95 1105A 21R 2 0.96 12 113.10 1.36 M G olivine gabbro 95 1105A 21R 2 12 50 15 2 4 30 40 15 2 4 40 7 10 2 4 30 95 1105A 21R 2 12 3 0.5 100.5 4.00 0.5 Oxide-bearing Olivine Gabbro 33.1 95 1105A 21R 2 12 equant-tabular blocky rounded irregular irregular 95 1105A 21R 2 12 subhedral suhedral subhedral concordant seams/interstitial disseminated 95 1105A 21R 2 12 inequigranular variable greenschist Felsic vein (ca. 1 cm wide) occurs in Section 21R-2, Pieces 2, 3, 4, and 5. These four pieces plus Piece 1 in Section 21R-2 have thin layers with or cracks filled with altered, rusty brown material. 96 1105A 22R 1 0.32 5 115.42 2.32 GS-TX P coarse oxide gabbro olivine-bearing 96 1105A 22R 1 5 45 30 2 5 5 40 20 3 8 20 15 1.5 0.5 1 80 96 1105A 22R 1 5 5 105 5.60 5 Oxide Olivine Gabbro 22.25 96 1105A 22R 1 5 equant-tabular prismatic irregular-angular irregular 96 1105A 22R 1 5 subhedral subhedral anhedral-subhedral seams/veins 96 1105A 22R 1 5 inequigranular uniform greenshist Massive coarse-pegmatic interval of oxide gabbro. Extensive alteration of pyroxenes to chlorite. Felsic veins in Sec. 1, Pc. 5. 97 1105A 22R 3 0.71 4 118.39 2.97 GS-M G medium-coarse variably foliated gabbro olivine and oxide bearing 97 1105A 22R 3 4 55 30 2 5 5 40 20 1 4 10 2 4 1 2 80 97 1105A 22R 3 4 3 100 4.53 0 Oxide-bearing Gabbro 8.35 97 1105A 22R 3 4 euqant-tabular equant irregular irregular 97 1105A 22R 3 4 subhedral subhedral anhedral seams/interstitial 97 1105A 22R 3 4 inequigranular-foliated variable greenschist Highly heterogeneous interval composed of medium to coarse grained gabbro with localized intense foliation and fining @ 100-126 cm (Sec. 1, Pc. 15); 48-56 cm (Sec. 2, Pc. 4); 76-93 cm (Sec. 2, Pc. 5 and 6); 32-39 cm (Sec. 3, Pc. 1A); 46-50 cm (Sec. 3, Pc. 3). Irregular veins of oxide minerals @ 128-130 cm (Sec. 1, Pc. 15); 34-36 cm (Sec. 2, Pc. 2); 96-100 cm (Sec. 2, Pc. 6): 109-120 cm (Sec. 2, Pc. 8); 0-2 cm (Sec. 3, Pc. 1); 29-31 cm (Sec. 3, Pc. 1); and 64-67 cm (Sec. 3, Pc. 4). Olivine is modally irregularly distributed through the interval. 98 1105A 22R 4 0.32 3 119.34 0.95 TX M 98 1105A 22R 4 3 56 6 2 3 5 40 7 1 2 5 3 5 1 2 40 98 1105A 22R 4 3 0.5 0.5 100 2.57 0 Gabbro 6 98 1105A 22R 4 3 equant-tabular blocky rounded irregular irregular 98 1105A 22R 4 3 subhedral subhedral subhedral disseminated disseminated 98 1105A 22R 4 3 equigranular variable greenschist Thin chlorite-filled veins occur throughout. Mineral grains coarsen downwards in Section 22R-1, Piece 1. Medium grained massive gabbro interval. 99 1105A 23R 1 1.19 9 120.59 1.25 TX-GS P fine-coarse foliated gabbro olivine- and oxide-bearing 99 1105A 23R 1 9 55 20 1 3 5 40 20 1 3 10 2 2 0.5 50 99 1105A 23R 1 9 2 99 2.94 1 Oxide-bearing Gabbro 7.75 99 1105A 23R 1 9 equant-tabular equant-deformed deformed irregular interstitial 99 1105A 23R 1 9 subhedral anhedral-deformed deformed interstitial veins 99 1105A 23R 1 9 foliated with blastic mafics variable greenschist Interval characterized by varibly developed foliation and grain size. Porphyroblastic texture well developed for pyroxene throughout interval. Bands composed of mafic minerals occur occassionally. The oxide minerals is distributed and localized in irregular vein fillings interstitial to the silicate minerals and largely arranged parallel to foliation. 100 1105A 23R 3 0.61 8 122.88 2.29 M-TX NR 100 1105A 23R 3 8 57 30 2 8 5 38 80 1 10 10 1 20 2 3 30 100 1105A 23R 3 8 3 1 100 8.74 0 Oxide-bearing Gabbro 6.95 100 1105A 23R 3 8 equant-tabular blocky rounded irregular irregular 100 1105A 23R 3 8 subhedral subhedral subhedral interstitial disseminated 100 1105A 23R 3 8 inequigranular variable greenschist Fine-grained massive gabbro occurs at 61-73 cm in Section 23R-2. Pegmatitic to coarse grained gabbro interval. 101 1105A 24R 1 0.1 2 124.50 1.62 M-GS P oxide and olivine bearing gabbro 101 1105A 24R 1 2 56 5 2 4 25 40 12 4 8 20 3 10 2 4 50 101 1105A 24R 1 2 1 100 5.62 0 Oxide-bearing Gabbro 23.5 101 1105A 24R 1 2 equant prismatic amoeboidal aggregates 101 1105A 24R 1 2 subhedral subhedral anhedral granular 101 1105A 24R 1 2 inequigranular greenschist Lowermost Piece in Section 179-1105A-23R-3 is contains a 1 cm thick felsic vein and is pervasively altered. The lower contact of this interval is marked by abundant oxide minerals. 102 1105A 24R 1 0.68 4 125.08 0.58 GS-M I SHARP 102 1105A 24R 1 4 59 20 3 10 5 35 40 3 8 5 4 5 2 3 30 102 1105A 24R 1 4 2 0.5 100.5 9.00 0.5 Oxide-bearing Gabbro 5.9 102 1105A 24R 1 4 equant-tabular blocky rounded irregular irregular 102 1105A 24R 1 4 subhedral subhedral subhedral interstitial disseminated 102 1105A 24R 1 4 inequigranulr variable greenschist Piece 2 is rich in oxide. Pegmatitic to coarse-grained gabbro interval with variable mineral distribution. 103 1105A 24R 1 0.77 5 125.17 0.09 TX-GS-M P medium oxide gabbro olivine-bearing 103 1105A 24R 1 5 65 15 1 4 5 30 18 1 3 15 1 3 0.5 2 50 103 1105A 24R 1 5 5 101 3.67 1 Oxide Gabbro 8.25 103 1105A 24R 1 5 equant-tabular prismatic irregular irregular 103 1105A 24R 1 5 subhedral subhedral subhedral-anhedral interstitial veins dissiminated 103 1105A 24R 1 5 inequigranular variable greenschist Medium grained oxide gabbro with irregular distribution of grain size and oxide minerals. 104 1105A 24R 2 0.365 5 126.20 1.025 M-GS NR 104 1105A 24R 2 5 63 20 3 5 10 35 15 3 5 15 104 1105A 24R 2 5 2 100 5.00 0 Oxide-bearing Gabbro 11.55 104 1105A 24R 2 5 equant-elongated equant-elongated irregular 104 1105A 24R 2 5 subhedral subhedral subhedral interstitial 104 1105A 24R 2 5 inequigranular-foliated variable greenschist Weakly foliated, coarse-grained gabbro interval. 105 1105A 24R 3 0.26 3 127.42 1.225 M-GS P coarse-pegmatitic oxide gabbro olivine-bearing 105 1105A 24R 3 3 65 20 2 5 30 30 3 10 2 4 1 50 105 1105A 24R 3 3 4 101 0.00 Oxide-bearing Gabbro 7.25 105 1105A 24R 3 3 equant-tabular prismatric irregular irregular 105 1105A 24R 3 3 subhedral subhedral anhedral interstitial veins 105 1105A 24R 3 3 inequigranular variable greenschist Coarse to pegmatic oxide gabbro with variable distribution of olivine and interstitial oxide mineral veins. Coarsening in grain size downward in the interval. Alteration intensive @ 4-6 cm (Sec. 3, Pc. 1). 106 1105A 24R 3 0.5 5 127.66 0.24 M-GS-TX P pegmatitic foliated oxide gabbro 106 1105A 24R 3 5 70 30 2 10 15 25 60 8 20 5 0 106 1105A 24R 3 5 5 100 12.63 Oxide Gabbro 11.75 106 1105A 24R 3 5 equant-tabular prismatic irregular interstitial 106 1105A 24R 3 5 subhedral subhedral interstitial veins 106 1105A 24R 3 5 foliated variable greenschist Foliation (lamination?) defined og upto 6 cm long pyroxenes. Variably altered along veining parallel to foliation (chlorite). Orange staining and whitening of feldspars related to alteration. 107 1105A 25R 1 0.01 1 129.01 1.35 M-GS-TX P coarse oxide and olivine gabbro 107 1105A 25R 1 1 65 50 2 10 15 30 25 1 10 5 2 8 1 5 50 107 1105A 25R 1 1 5 102 9.90 Oxide Gabbro 12.25 107 1105A 25R 1 1 equant-elongated elongated-deformed deformed interstitial veins 107 1105A 25R 1 1 subhedral subhedral-deformed anhedral-deformed interstitial 107 1105A 25R 1 1 coarse deformed variable greenschist Variably foliated coarse grained gabbro. Olivine and oxide seams v ariably distributed. Whitening of feldspars related to alteration veining. 108 1105A 25R 1 0.05 1 129.05 0.04 M-GS-TX P olivine oxide microgabbro 108 1105A 25R 1 1 50 0.5 0.5 0.5 0 20 1 0.5 0.5 0 15 0.5 0.5 0.5 10 108 1105A 25R 1 1 15 100 0.50 Oxide Olivine Gabbro 1.5 108 1105A 25R 1 1 equant equant irregular dissemianted 108 1105A 25R 1 1 euhedral euhedral anhedral granular 108 1105A 25R 1 1 equigranular and mildly foliated Foliation is weakly developed. Lower contact is marked by a Fe-Ti oxide seam and coarse grains. 109 1105A 25R 1 0.23 2 129.23 0.18 M-GS-TX P olivine oxide gabbro 109 1105A 25R 1 2 55 8 2 5 20 20 25 5 10 20 10 12 3 5 40 109 1105A 25R 1 2 15 100 6.18 Oxide Olivine Gabbro 19 109 1105A 25R 1 2 recrystallized blocky deformed seams and patches 109 1105A 25R 1 2 subhedral aggregates 109 1105A 25R 1 2 foliated greenschist Plagioclase recrystallized and altered to secondary plagioclase. Clinopyroxene altered to green amphibole. Sharp basal contact against microgabbro. 110 1105A 25R 1 0.26 2 129.26 0.03 M-GS-TX P olivine oxide microgabbro 110 1105A 25R 1 2 50 0.5 0.5 0.5 0 20 5 0.5 0.5 0 15 0.5 0.5 0.5 20 110 1105A 25R 1 2 15 100 0.50 Oxide Olivine Gabbro 3 110 1105A 25R 1 2 equant equant irregular disseminated 110 1105A 25R 1 2 euhedral euhedral anhedral granular 110 1105A 25R 1 2 equigranular and mildly foliated Olivine distribution is highly variable, otherwise like Interval 108 111 1105A 25R 1 0.43 3 129.43 0.17 M-GS-TX P olivine bearing oxide gabbro 111 1105A 25R 1 3 55 1 0.5 0.5 30 35 30 3 10 30 2 0.5 0.5 0.5 40 111 1105A 25R 1 3 8 100 4.11 Oxide Gabbro 27.8 111 1105A 25R 1 3 recrystallized blocky deformed seams and patches 111 1105A 25R 1 3 subhedral aggregates 111 1105A 25R 1 3 foliated greenschist Like Interval 109 but more abundant olivine. Plagioclase and clinopyroxene even more altered. 112 1105A 25R 1 0.49 4 129.49 0.06 M-GS-TX P olivine oxide microgabbro 112 1105A 25R 1 4 50 0.5 0.5 0.5 0 30 2 0.5 0.5 0 5 0.5 0.5 0.5 20 112 1105A 25R 1 4 15 100 0.50 Oxide Olivine Gabbro 1 112 1105A 25R 1 4 equant equant irregular disseminated 112 1105A 25R 1 4 euhedral euhedral anhedral granular and in patches 112 1105A 25R 1 4 equigranular and distinctly foliated Lower contact marked by abundant Fe-Ti oxides. 113 1105A 25R 2 0.2 1 130.64 1.15 M-GS-TX P 113 1105A 25R 2 1 47 15 3 10 10 45 20 3 10 15 3 15 2 8 30 113 1105A 25R 2 1 5 100 9.94 Oxide Gabbro 12.35 113 1105A 25R 2 1 elongated elongated elongated irregular 113 1105A 25R 2 1 anhedral-deformed anhedral-deformed anhedral-deformed concordant seams 113 1105A 25R 2 1 inequigranular-foliated variable greenschist Well-developed foliation is observed throughout. Augen clasts of pyroxene, olivine, and plagioclase align parallel to the foliation. Banded or strongly foliated gneissose gabbro interval. 114 1105A 25R 2 0.35 2 130.79 0.15 M P coarse olivine gabbro leucocratic 114 1105A 25R 2 2 70 12 1 3 5 25 40 5 10 10 5 5 1 2 50 114 1105A 25R 2 2 0 100 4.70 Olivine Gabbro 8.5 114 1105A 25R 2 2 equant equant-interstitial equant-irregular 114 1105A 25R 2 2 subhedral subhedral-interstitial subhedral-anhedral 114 1105A 25R 2 2 inequigranular uniform greenschist Massive olivine gabbro defined by high modal olivine. 115 1105A 25R 2 1.32 4 131.76 0.97 M-GS-TX P pegmatitic poikilitic gabbro olivine-bearing 115 1105A 25R 2 4 60 30 2 12 3 40 50 3 10 5 1 8 3 4 50 115 1105A 25R 2 4 101 11.13 Gabbro 4.3 115 1105A 25R 2 4 equant-tabular equiant-interstitial irregular 115 1105A 25R 2 4 euhedral-subhedral euhedral-interstitial subhedral-anhedral 115 1105A 25R 2 4 poikilitic/subophitic uniform greenschist Massive pegmatic interval with poikilitic/subophitic texture (plagioclase laths included in pyroxene). Olivine unevenly distributed with highest concentration @ 92-120 cm (Sec. 2, Pc. 3). Alteration intense @ 94 cm (Sec. 2, Pc. 3). 116 1105A 25R 3 0.57 5 132.40 0.64 M-TX-GS P 116 1105A 25R 3 5 55 20 0.5 10 20 35 45 0.5 8 15 2 10 2 6 30 116 1105A 25R 3 5 8 0.5 100.5 9.15 Oxide Gabbro 16.85 116 1105A 25R 3 5 equant-elongate equanrt-elongate elongate irregular irregular 116 1105A 25R 3 5 subhedral-deformed subhedral deformed rounded-deformed concordant seams disseminated 116 1105A 25R 3 5 inequigranular-mylonitic variable greenschist Foliation is well developed except the interval 19-35 cm in Section 25R-3. Piece 4 in Section 25R-2 is fine-grained. Strongly foliated gabbro interval. 117 1105A 26R 1 0.07 1 134.07 1.67 GS P 117 1105A 26R 1 1 59 15 3 10 0 35 21 2 7 0 5 10 2 6 20 117 1105A 26R 1 1 1 100 8.74 Oxide-bearing Olivine Gabbro 1 117 1105A 26R 1 1 equant-tabular brocky equant-rounded irregular 117 1105A 26R 1 1 euhedral euhedral subhedral interstitial 117 1105A 26R 1 1 equigranular-subophitic uniform greenschist Homogeneous, massive gabbro interval defined by coarse-grain size. 118 1105A 26R 1 0.17 1 134.17 0.1 GS P fine-medium weekly foliated oxide gabbro olivine-bearing 118 1105A 26R 1 1 55 3 1 2 5 35 4 1 2 5 1 0.5 50 118 1105A 26R 1 1 10 101 1.98 Oxide Gabbro 5 118 1105A 26R 1 1 equant-elongated prismatic equant-rounded irregular 118 1105A 26R 1 1 subhedral subhedral-deformed subhedral-anhedral interstial seams 118 1105A 26R 1 1 equigranular-blastic uniform greenschist Weekly foliated and fine grained interval. 119 1105A 26R 1 0.49 2 134.49 0.32 GS P coarse oxide gabbro olivine-bearing 119 1105A 26R 1 2 50 15 3 15 5 40 40 3 10 10 3 2 0.5 0.5 50 119 1105A 26R 1 2 10 103 12.38 Oxide Gabbro 8 119 1105A 26R 1 2 equant prismatic rounded irregular 119 1105A 26R 1 2 subhedral subhedral anhedral interstial seams 119 1105A 26R 1 2 inequigranular variable greenschist Variable oxide gabbro showing modal increase in pyroxene and oxides near upper contact. 120 1105A 26R 1 0.63 2 134.63 0.14 GS-M P fine-medium weekly foliated oxide and olivine gabbro 120 1105A 26R 1 2 65 3 1 2 5 25 4 1 2 5 3 0.5 50 120 1105A 26R 1 2 10 103 1.95 Oxide Gabbro 6 120 1105A 26R 1 2 equant-elongated prismatic equant-rounded irregular 120 1105A 26R 1 2 subhedral subhedral-deformed anhedral interstial seams 120 1105A 26R 1 2 equigranular-blastic variable greenschist Weekly foliated and fine-grained oxide gabbro. Felsic-mafic banding at upper and in part lower boundaries associated with the strongest deformation and granoblastic textures. 121 1105A 26R 1 0.82 3 134.82 0.19 M P coarse oxide gabbro olivine-bearing 121 1105A 26R 1 3 50 15 3 5 5 40 40 3 10 10 3 2 0.5 0.5 50 121 1105A 26R 1 3 10 103 7.01 Oxide Gabbro 8 121 1105A 26R 1 3 equant prismatic rounded irregular 121 1105A 26R 1 3 subhedral subhedral anhedral interstitial seams 121 1105A 26R 1 3 inequigranular variable greenschist Variable oxide gabbro with large grains of pyroxenes at upper boundary toward fine grained interval 120. 122 1105A 26R 2 0.02 1 135.38 0.56 TX-M P 122 1105A 26R 2 1 56 20 5 10 3 35 40 5 10 5 8 15 3 7 20 122 1105A 26R 2 1 1 0.5 100.5 9.76 Oxide-bearing Olivine Gabbro 5.03 122 1105A 26R 2 1 equant-tabular brocky rounded irregular irregular 122 1105A 26R 2 1 euhedral euhedral subhedral interstitial disseminated 122 1105A 26R 2 1 equigranular-subophitic uniform greenschist Homogeneous, massive olivine gabbro. 123 1105A 26R 2 1.02 1 136.38 1 TX-M P 123 1105A 26R 2 1 50 25 3 7 10 39 30 3 10 30 3 13 2 4 30 123 1105A 26R 2 1 7 1 100 8.17 Oxide Gabbro 17.6 123 1105A 26R 2 1 equant-elongate brocky rounded irregular irregular 123 1105A 26R 2 1 subhedral-deformed subhedral-deformed deformed interstitial/seams disseminated 123 1105A 26R 2 1 inequigranular-partly foliated variable greenschist Foliation is moderately developed in Pieces 4 and 5, and is well developed in Piece 6. This interval shows varied textural and modal distribution, and is characterized by abundant oxide. 124 1105A 26R 3 1.28 6 138.04 1.66 GS-M G coarse-pegmatic olivine gabbro 124 1105A 26R 3 6 60 50 3 15 2 30 30 2 10 5 10 10 2 4 30 124 1105A 26R 3 6 0 100 12.40 Olivine Gabbro 5.7 124 1105A 26R 3 6 equant-tabular equant-interstitial equant-irregular 124 1105A 26R 3 6 subhedral-euhedral sunhedral subhedral-anhedral 124 1105A 26R 3 6 inequigranular-poikilitic variable greenschist Variable grain size distribution and subophitic/poikilitic texture. 125 1105A 27R 1 0.42 1 139.12 1.08 TX-M P medium to coarse olivine gabbro 125 1105A 27R 1 1 55 23 2 4 0 40 20 3 8 5 5 10 3 7 20 125 1105A 27R 1 1 0.5 100.5 5.75 Olivine Gabbro 3 125 1105A 27R 1 1 tabular prismatic rouded disseminated 125 1105A 27R 1 1 euhedral subhedral anhedral interstitial 125 1105A 27R 1 1 equigranular to ophitic Olivine content in no constant, rare very large clinopyroxene grains. Lower contact marked by pegmatitic clinopyroxene and abundant oxide in deformed interval below. Low temperature alteration in haloes around veins (see structural description). 126 1105A 27R 1 0.86 3 139.56 0.44 M-TX P olivine-bearing oxide gabbro 126 1105A 27R 1 3 57 25 0.5 30 30 33 3 40 3 12 2 50 126 1105A 27R 1 3 10 100 0.00 Oxide Gabbro 30.6 126 1105A 27R 1 3 eroded/deformed/recrystallized deformed rounded aggregates in patches 126 1105A 27R 1 3 anhedral subhedral anhedral variable 126 1105A 27R 1 3 foliated greenschist Variably foliated, highly variable grain size. Moderately to intensely altered (plagioclase recrystallized and altered to secondary plagioclase, pyroxene altered to green amphibole). Oxide abundance is highly variable. 127 1105A 29R 1 1.02 4 149.42 9.86 M-GS P coarse to pegmatitic olivine gabbro 127 1105A 29R 1 4 55 25 5 12 0 40 55 3 12 5 5 15 5 8 10 127 1105A 29R 1 4 0.5 100.5 11.80 Olivine Gabbro 2.5 127 1105A 29R 1 4 tabular prismatic rounded disseminated angular 127 1105A 29R 1 4 euhedral subhedral anhedral interstitial interstitial/globular 127 1105A 29R 1 4 inequigranular, ophitic Massive, thick olivine gabbro. Similar to unit 125 but coarser grained. Rare very large clinopyroxene crystals, more common than in Interval 125. Olivine abundance is variable (as high as 10% locally, indistinct elsewhere) but over any few cm olivine is p 128 1105A 29R 2 0.93 3 150.60 1.18 M P 128 1105A 29R 2 3 62 60 5 10 10 35 50 5 10 10 2 25 4 7 30 128 1105A 29R 2 3 1 100 9.94 Oxide-bearing Gabbro 10.3 128 1105A 29R 2 3 equant-tabular brocky rounded irregular 128 1105A 29R 2 3 subhedral subhedral subhedral interstitial/seams 128 1105A 29R 2 3 equigranular variable greenschist Olivine is more abundant at the interval 56-66 cm in Section 29R-2 (ca 10%). Mineral grains are fining downwards in Section 29R-2, Piece 2B and 2C. Weakly foliated pegmatitic to coarse grained gabbro interval. 129 1105A 29R 2 1.03 3 150.70 0.1 M P coarse leucocratic oxide gabbro olivine-bearing 129 1105A 29R 2 3 70 30 5 10 2 20 12 5 8 5 0.5 1 80 129 1105A 29R 2 3 10 100.5 9.51 Oxide Gabbro 2.8 129 1105A 29R 2 3 euqant-tabular blocky rounded irregular 129 1105A 29R 2 3 subhedral subhedral-anhedral anhedral interstitial seams 129 1105A 29R 2 3 inequigranular uniform greenschist Uniform leucocratic band. 130 1105A 29R 2 1.39 4 151.06 0.36 GS G 130 1105A 29R 2 4 58 20 4 8 10 40 20 3 8 10 1 10 3 6 30 130 1105A 29R 2 4 1 100 7.98 Oxide-bearing Gabbro 10.1 130 1105A 29R 2 4 equant-tabular brocky rounded irregular 130 1105A 29R 2 4 subhedral subhedral subhedral interstitial 130 1105A 29R 2 4 equigranular variable greenschist Massive gabbro interval characterizerd by coarse grain size. 131 1105A 29R 3 0.23 2 151.32 0.26 GS-TX P 131 1105A 29R 3 2 60 20 1 5 0 40 15 1 3 0 0.5 3 2 2 10 131 1105A 29R 3 2 0 100.5 4.19 Gabbro 0.05 131 1105A 29R 3 2 equant-tabular prismatic rounded 131 1105A 29R 3 2 subhedral euhedral subhedral 131 1105A 29R 3 2 equigranular uniform greenschist Coarse-grained, massive gabbro. Felsic vein occurs at 16-22cm in Section 29R-3, Pieces 1 and 2. 132 1105A 29R 3 1.175 4 152.27 0.945 M-TX-GS P fine-medium foliated gabbro olivine-bearing 132 1105A 29R 3 4 55 25 0.5 2 2 45 12 0.5 2 10 3 8 0.5 4 50 132 1105A 29R 3 4 0 103 2.06 Gabbro 7.1 132 1105A 29R 3 4 equant-tabular blocky rounded 132 1105A 29R 3 4 subhedral subhedral-anhedral anhedral 132 1105A 29R 3 4 inequigranular-granoblastic variable greenschist Variable foliated gabbro with strong fabric defined by elongated to blastic pyroxenes. Olivine is evenly distributed over the interval. 133 1105A 30R 1 0.27 1 153.67 1.41 GS NR fine-coarse foliated and banded gabbro olivine and oxide bearing 133 1105A 30R 1 1 55 20 1 3 10 45 20 1 3 20 0.5 1 50 133 1105A 30R 1 5 105.5 2.99 Oxide Gabbro 14.75 133 1105A 30R 1 1 equant-elongated blocky rounded irregular 133 1105A 30R 1 1 anhedral anhedral anhedral interstitial seams 133 1105A 30R 1 1 foliated and granoblastic greenschist Highly and variably deformed oxide gabbro with blocky to elongated porphyroblastic texture. The interval vary from coarse foliated to fine grained bands (particular @ 118-130 cm, Sec. 3, Pc. 4) and ocassionally leucocratic bands (32-45 cm, Sec. 3, Pc. 2). 134 1105A 30R 1 0.79 7 154.19 0.52 GS-TX-M P 134 1105A 30R 1 7 59 5 0.1 0.5 0 40 3 0.1 0.5 0 0.5 2 0.5 1 30 134 1105A 30R 1 7 1 100.5 0.50 Oxide-bearing Gabbro 0.15 134 1105A 30R 1 7 elongate elongate elongate irregular 134 1105A 30R 1 7 deformed deformed deformed seams 134 1105A 30R 1 7 inequigranular-cataclastic, foliated greenschist Fine-grained to aphanitic interval with moderately developed foliation. Thin chlorite vein in Piece 6. 135 1105A 30R 1 1.06 9 154.46 0.27 GS-TX NR medium-fine foliated oxide gabbro 135 1105A 30R 1 9 50 15 1 2 5 45 20 1 2 20 0 135 1105A 30R 1 9 5 100 2.00 Oxide Gabbro 11.5 135 1105A 30R 1 9 euqant-elongate blocky-elongated irregular 135 1105A 30R 1 9 andedral anhedral-deformed dissiminated-interstitial seams 135 1105A 30R 1 9 foliated and granoblastic variabele greenschist Foliated and weekly banded oxide gabbro interval. Granoblastic foliation accentuared by grain size and modal variation giving the appearance of weak banding on the centimeter scale. Dissiminated to interstitial veining of the oxide minerals. 136 1105A 30R 2 0.31 3 155.07 0.61 GS-TX-M NR fine-medium foliated oxide gabbro olivine-bearing 136 1105A 30R 2 3 50 20 0.5 1 5 50 25 0.5 2 20 0 136 1105A 30R 2 3 3 103 1.50 Oxide-bearing Gabbro 12.5 136 1105A 30R 2 3 equant-elongated blocky-elongated rounded irregular-interstitial 136 1105A 30R 2 3 suhedral anhedral-deformed anhedral dissimilated-interstitial seams 136 1105A 30R 2 3 foliated and weakly banded variable greenschist Foliated and weakly banded oxide gabbro. The banding is accentuared by grain size variation from fine to coarse on the 1-2 cm scale. Felsic veins @ 125-126 cm (Sec. 1, Pc. 12) and 30-31 cm (Sec. 2, Pc. 3). Whiting of feldspars @ 21-31 cm (Sec. 2, Pc. 3). 137 1105A 30R 2 0.78 6 155.54 0.47 GS-M NR 137 1105A 30R 2 6 55 25 2 7 0 35 15 2 5 0 2 15 2 5 10 137 1105A 30R 2 6 8 100 6.20 Oxide Gabbro 0.2 137 1105A 30R 2 6 elongate elongate elongate irregular 137 1105A 30R 2 6 deformed deformed deformed interstitial/seams 137 1105A 30R 2 6 inequigranular-foliated variable greenschist Olivine is more abundant at 35-50 cm in Pieces 4 and 5 (ca 8%). Foliation is well developed throughout. Felsic vein occur at the top of this interval. 138 1105A 30R 2 1.06 8 155.82 0.28 GS G 138 1105A 30R 2 8 61 2 0.5 1 0 35 2 0.5 1 0 138 1105A 30R 2 8 4 100 1.00 Oxide-bearing Gabbro 0 138 1105A 30R 2 8 equant-elongate equant-elongate irregular 138 1105A 30R 2 8 subhedral-deformed subhedral-deformed interstitial/seams 138 1105A 30R 2 8 equigranular-foliated variable Weakly foliated interval characterized by fine-grain size. Both the upper and lower boundary are gradational. 139 1105A 30R 2 1.33 9 156.09 0.27 GS-TX NR medium-coarse foliated oxide gabbro 139 1105A 30R 2 9 55 50 1 5 5 45 15 1 5 10 0 139 1105A 30R 2 9 3 103 5.00 Oxide-bearing Gabbro 7.25 139 1105A 30R 2 9 equant-elongated blocky-elongated irregular-interstitial 139 1105A 30R 2 9 subhedral subhedral-deformed interstitial-dissiminated 139 1105A 30R 2 9 inequigranular uniform greenschist Massive medium-coarse interval with foliation. 140 1105A 30R 3 0.25 3 156.35 0.26 M NR 140 1105A 30R 3 3 57 10 1 5 5 35 10 1 3 10 0.5 1 1 1 30 140 1105A 30R 3 3 8 100.5 4.22 Oxide Gabbro 6.5 140 1105A 30R 3 3 elongated blocky-elongated rounded irregular 140 1105A 30R 3 3 subhedral-deformed subhedral-deformed rounded interstitial-seams 140 1105A 30R 3 3 inequigranulat-foliated variable greenschist Zoned vein with light-greenish mineral at the center and felsic mineral at thr rim occurs at 13-28 cm in Section 30R-3. Weakly foliated, medium grained interval. 141 1105A 30R 3 1.34 11 157.44 1.09 EOC NR 141 1105A 30R 3 11 64 13 0.5 5 0 35 10 0.5 3 0 0.5 1 1 1 30 141 1105A 30R 3 11 0.5 100 4.28 Gabbro 0.15 141 1105A 30R 3 11 equant-tabular brocky rounded irregular 141 1105A 30R 3 11 subhedral subhedral rounded interstitial 141 1105A 30R 3 11 equigranular variable Felsic vein occurs at 90-93 cm, and thin chlorite veins in Pieces 5, 7, and 10 in Section 30R-3. 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