TS Interval Rock name Description # Comments 1 "1065A-1R-2," Lithic graywacke Fine grained sand: angular clasts; moderately sorted. 139-141 cm Low grade metamorphism Clasts dominated by single and polycrystalline quartz grains; most quartz shows shadow extinction. Rare feldspar (plagiociase). Matrix forms 0-20%: micas and clay minerals. Minimal grain contact solution. Pebble from Unit II 2 "1065A-1R-3," Metamorphosed lithic arenite Medium sand; angular clasts. Clasts dominated by single and 4-7 cm Low grade metamorphism polycrystalline quartz grains; most quartz shows shadow extinction Rare feldspar (plagiociase). Matrix ~10%: micas and clay minerals; some grain contact solution Pebble from Unit II 3 "1065A-1R-3, " Carbonate mudstone/ Micrite with scattered foraminifers 73-75 cm wackestone Pebble from Unit II 4 "1065A-1R-3, " Peloidal/intraclastic grainstone Allochems medium to coarse sand grade. Part of thin section shows 85-88 cm "microspar cement; intra-particle porosity preserved elsewhere, save for" calcite overgrowths around echinoderm plates Pebble from Unit II 5 "1065A-1R-3, " Peloidal packstone Peloids fine to medium sand grade. Long colonial coral fragment 111-115 cm Cryptalgal structure: possible "traverses slide, and is encrusted by a variety of algae, and a Chaetitid" bindstone Pebble from Unit II 6 "1065A-1R-4, " Pelite "Very fine grained quartz, clay minerals and mica (muscovite)" 34-37 cm Low grade metamorphism Pebble from Unit II 7 "1065A-5R-1," Carbonate mudstone/ Micrite with planktonic foraminifers 9-102 cm wackestone 8 "1065A-6R-1, " Mica schist Quartz: ~50%; muscovite: ~30%; biotite: ~10%. Fairly strong foliation 84-86 cm Greenschist facies defined by muscovite alignment; biotite porphyroblasts metamorphism Pebble from Unit II 9 "1065A-6R-2, " Pelite "Similar to 1065-1 R-3, 111-115 cm, but red (?hematite) iron staining" 30-32 cm Low grade metamorphism Pebble from Unit II 10 "1065A-8R-CC, " Breccia "Clasts: slate, schist, carbonates (biomicrite: deformed, fractured)" 4-7 cm "Matrix: intraclast grainstone / microsparite, qtz rich" Unit VA 11 "1065A-8R-CC, " Breccia "Limestone lithoclasts (biomicrite, angular-rounded), pelites, quartz" B-20 cm "Matrix: sparite cemented sand grains of quartz, pelite, carbonate" Calcite filled vein 12 "1065A-9R-1, " Micrite With quartz silt; calcite filled fractures 7-9 cm Unit VA 13 "1065A-9R-1, " Calcareous siltstone "Laminated, organic matter, little variations in grain size or quartz content" 49-52 cm Unit VA 14 "1065A-14R-CC, " Biotite hornfels "This clast is within Subunit VA, but was probably washed downhole from Unit II." 0-2 cm Contact metamorphism ~10% biotite porphyroblasts. Matrix crystal size ~0.01 mm; largely white mica with minor quartz. Relict foliation. Original rock may have been a slate 15 "1065A-16R-CC, " Breccia "Subrounded clasts of quartz arenite, limestone, pelite, carbonate (dolomitic?)" 0-3 cm cement Unit VA 16 "1065A-22R-CC, " Breccia "Subrounded clasts, carbonate (?dolomite) cemented; quartz, quartz, arenite" 16-21 cm pelite Unit VA 17 "1065A-23R-1, " "Breccia, silty claystone" "Breccia: Quartz arenite, siltstone, quartz, pyrite, plagioclase, limestone" 36-40 cm Unit VB 18 "1065A-24R-1, " Claystone with fine silt Laminated by varying silt/clay content; Chondrites 48-52 cm Unit VB 19 "1065A-24R-1, " Silty claystone / claystone Laminated by varying contents of clay and organic matter 72-75 cm Unit VB 20 "1065A-27R-1, " Clay "Slightly silty; laminated, Chondrites; sandy silt laminae at top" 26-31 cm Unit VB 21 "1065A-27R-1, " Claystone "Laminated, ?fining upward, Chondrites, fine grained layer at top" 79-84 cm above inclined laminae (?cross laminae) Unit VB 22 "1065A-28R-1," "Claystone, brecciated" 'Pieces' fit together across fractures which are cemented 53-55 cm with calcite which is partially dolomitized Unit VB 23 "1065A-29R-CC, " Silty claystone Laminated by variable amounts of organic matter; ?dolomitized 10-13 cm Unit VB 24 "1065A-30R-1, " Breccia "Clasts: pelites, quartz, rare plagioclase" 55-57 cm Unit VB 25 "1065A-31R-1, " Silty claystone "Laminated, variable amounts of silt, clay and organic matter" 33-35 cm chondrites Unit VB 26 "1065A-31R-CC, " Silty claystone "Plant debris (organic matter), at the top a 5 mm silt layer with disturbed lower" 15-18 cm boundary (?erosion surface) Unit VB 27 "1065A-32R-CC, " Claystone / silty claystone "Chondrites, silt rich lenses partly dolomitized" 15-20 cm Unit VB 28 "1065A-34R-1, " "Coarse sandstone, siltstone" "Sandstone clasts: highly fractured minerals (?pyroxene), ?limestone," 66-68 cm "siltstone, claystone ?epidote" Unit VB