Table T1. Plagioclase analyses.
TS
Source
Leg
Hole
Core
Sect
Top (cm)
Bot. (cm)
Piece
Gr.
Loc.
Depth (mbsf)
Rock type
Fo
An
Or
Mg#
Cpx
Mg#
Opx
Mg#
Hb
Plag
Ol
Cpx
Opx
Opaq
Am
Zir
Apatite
Qtz
Other
CP
Pt
Gr
Loc
Grain size (mm)
SiO2
TiO2
Al2O3
FeO
MnO
MgO
CaO
Na2O
K2O
BaO
P2O5
NiO
Cr2O3
Total
An
Ab
Or
MEY MEY 118 735B 1 1 19.0 21.0

0.49 Gabbronorite
42.8 0.1 74.1












1 Pl 1 PtC

56.81
26.39 0.04
0.00 8.63 6.36 0.01



98.24 42.8 57.1 0.1
HEB CON/HER 118 735B 1 1 90.0 92.0 14
2.34 Gabbro
44.2 0.2 69.9

45 0 0 0




55 4 13 Pl 13 Neo M F 56.96 0.00 27.05 0.09 0.00 0.04 9.19 6.40 0.03



99.76 44.2 55.7 0.2
HEB CON/HER 118 735B 1 1 90.0 92.0 14
2.34 Gabbro
47.2 0.4 69.9

45 0 0 0




55 4 4 Pl 4 Pt M M 56.02 0.00 27.78 0.15 0.00 0.04 9.83 6.02 0.07



99.91 47.2 52.4 0.4
HEB CON/HER 118 735B 1 1 90.0 92.0 14
2.34 Gabbro
47.7 0.2 69.9

45 0 0 0




55 4 6 Pl 6 Pt M F 56.84 0.00 27.57 0.09 0.00 0.03 9.66 5.83 0.03



100.05 47.7 52.1 0.2
HEB CON/HER 118 735B 1 1 90.0 92.0 14
2.34 Gabbro
41.9 0.5 69.9

45 0 0 0




55 4 8 Pl 8 Neo M F 57.98 0.00 26.55 0.31 0.00 0.04 8.55 6.50 0.09



100.02 41.9 57.6 0.5

HEB 118 735B 1 1 90.0 92.0 14
2.34 Gabbronorite
44.2 0.2 69.8












1 Pl B

56.96
27.05 0.09
0.04 9.19 6.40 0.03



99.76 44.2 55.7 0.2

HEB 118 735B 1 1 90.0 92.0 14
2.34 Gabbronorite
47.2 0.4 69.8












2 Pl B

56.02
27.78 0.15
0.04 9.83 6.02 0.07



99.91 47.2 52.4 0.4

HEB 118 735B 1 1 90.0 92.0 14
2.34 Gabbronorite
45.7 0.3 69.8












2 Pl Ave

56.49
27.42 0.11
0.04 9.51 6.21 0.05



99.82 45.7 54.0 0.3

HEB 118 735B 1 1 90.0 92.0 14
2.34 Gabbronorite
2.2 0.2 69.8












2 Pl Sd

0.66
0.52 0.04
0.00 0.45 0.27 0.03



0.10 2.2 2.3 0.2
133 OZA 118 735B 1 2 59.0 61.0

5.43 Metagabbro
44.9 0.4 73.6












101 Pl B

57.40 0.04 26.70 1.09

8.85 5.94 0.07



100.09 44.9 54.7 0.4

Notes: Fo = forsterite, An = anorthite, Or = orthoclase, Cpx = clinopyroxene, Opx = orthopyroxene, Opaq = opaques, Hb = hornblende, Plag = plagioclase, Ol = olivine, Am = amphibole, Qtz = quartz. CP = crystal-plastic or brittle deformation intensity, Pt = point number, Gr = grain number prefixed by mineral abbreviation. Loc = location in grain: PtC = point in core, neo = neoblast, B = random point in grain interior. Sd = standard deviation (1 ). Only a portion of this table appears here. The complete table is available in ASCII.