Thin Interval Rock name Description Section # 143 "1069A-1R-1, " Intraclast Allochems and larger siliciclastic clasts up to to 0.6 mm. 90-91 cm grainstone Quartz silt scattered throughout 2 mm thick lamina on one side of slide Quartz sand clasts are single crystals and polycrystalline; rare plagioclase "Allochems: intraclasts (composite micritic, with skeletal fragments; planktonic" "and benthic forams, rare bivalve fragments and ostracods. " Scattered echinoderm plates with syntaxial overgrowths. Trace pelite clasts and larger quartz clasts partially coated with micrite. 144 "1069A-1R-3, " Calcareous "<0.15 mm. Quartz predominates. Also peloids, skeletal debris (including" 79-82 cm sandstone echinoderm plates); much of calcite cement is overgrowths over skeltal debris 145 "1069A-2R-2, " Silty/sandy Broken and whole planktic forams up to 0.3 mm. Quartz: silt/fine sand 81-83 cm foram chalk "Allochems: some micritized peloids, benthic forams. Microspar cement." Laminae containing lenticles (~1.0 X 0.15 mm) of brown clay: burrows or clasts? (more likely the former). Some laminae quartz rich with only a few "allochems. trace of rounded green grains (0.3 mm), possibly glauconite." 146 "1069A-3R-CC, " Foram chalk "Broken and intact planktic forams <0.4 mm, set in a micrite matrix." 11-14 cm overlain by 1.0 X 0.1 mm); trace fish scales. claystone 147 "1069A-4R-1, " Laminated "Siltstone: calc. micropsar + micrite matrix; quartz clasts predominate, trace" 133-5 cm calcareous mica flakes up to 0.6 mm long. Rare forams debris. Claystone: some sandstone and "pseudo-optical continuity' visible; common quartz silt, trace forams" silty claystone 148 "1069A-4R-2, " Calc. sandstone "Coarse sand sized (1-3 mm) quartz (subrounded/subangular, " 135-6 cm single and polycrystalline clasts showing shadow extinction) set in a 'matrix' of calcareous medium to fine grained calc. sandstone: angular to "subangular quartz clasts, and allochems (peloids, intraclasts, skeletal" "fragments with thick micrite envelopes, calc. chalk clast. echinoid plates with" syntaxial overgrowths. 149 "1068A-7R-2, " Misplaced froM 1068A and relabelled #86 (see Site 1068 description). 82-5 cm 150 "1069A-7R-5, " Peloidal/foram "0.15-0.7 mm. Peloids, coated skeltal debris, quartz, planktic and benthic " 35-38 cm grainstone "forams, /ostracods, calcite spar cement" 151 "1069A-8R-3, " Intraclast/ "Bad TS, many holes - possibly some due to original porosity. Grain size up to" 118-121 cm lithoclast "1.5 mm; angular subangular qtz up to 1.0mm. Carbonate clasts: intraclasts," grainstone "peloidal grainstones, echinoid plates and spines (with syntaxial cement rims)," "bivalve debris. Trace clasts: ?chalk, ?dolomite microspar." Very well compacted: slight intergrain solution. 152 "1069A-4R-4/CC, " Calcareous "V. angular - angular quartz clasts, peloids, planktonic foram. debris and other " 12-14 cm sandstone "skeletal debris, especially echinoderm plates. Grain size < 0.15 mm." 153 "1069A-9R-3, " Calc. siltstone to Siltstone similar to thin section #152. Grainstone: <0.15 mm. calcite 81-86 cm peloidal foram. "cemented v. angular to angular quartz, peloids, pelagic forams (largely intact)," grainstone "other skeltal debris, including echinoderm plates." 154 "1069A-9R-3, " Silty claystone Lenticular areas of claystone (~0.5-0.7 mm X 0.15 mm) showing different 86-90 cm "shades of light brown. Rare quartz silt <0.15 mm, trace mica and forams." 155 "1069A-10R-4, " Silty foram "Same as thin section #158, but some laminae contain are calc. siltstone" 137-140 cm packstone 156 "1069A-10R-5, " Foram peloidal With lithoclasts of foram chalk and other bioclasts including echinoderm 66-69 cm grainstone plates. Grain size: ~0.3 mm; lithoclasts up to 1.5 mm. Sparite cement. 157 "1069A-10R-8, " Peloidal sandy "Peloids and common quartz: <0.8 mm. Trace planktonic forams, rare mica" 14-18 cm packstone 158 "1069A-11R-1, " Foram chalk Foram packstone: microspar/micritic matrix. Forams <0.1 mm; 41-44 cm common peloids and skeltal debris (some echinoderm plates) 162 "1069A-12R-2, " Silty peloidal "~0.15 mm peloids and forams, common ?glauconite, microspar matrix" 124-128 cm foram. packstone 163 "1069A-12R-2, " Foram "Forams (0.05-0.1 mm) in matrix of microspar. Trace of muscovite, " 130-134 cm packstone even rarer biotite and green 'mica'. 164 "1069A-12R-6, " V. coarse calc. "Clasts 1-4 mm; pelites, one biotite hornfels, cryptalgal and peloidal " 11-14 cm lithic sst/ limestones. Very well compacted; some calcite cement visible with broken conglomerate forams/. [poor TS] 165 "1069A-13R-2, " Lithic "Limestone clasts (cryptalgal textures, coated grains, peloidal grainstones, " 50-54 cm (limestone) One solitary coral. Sparite cement containing broken and whole planktic conglomerate "forams, and trace benthics." 166 "1069A-14R-4, " Coarse V. coarse sand to granule grain size. About one third of clasts are quartz (single 133-6 cm calcareous "and polycrystalline clasts, shadow extinction) and feldspar (quartz dominates)." lithic "Limestone clasts mostly cryptalgal micrite: rare coated grains and grainstone," sandstone "skeletal debris including echinoid plates. Sparite cement, often containing" planktonic forams. 167 "1069A-15R-3, " Peloidal sandy Same as thin section #157 44-48 cm packstone 168 "1069A-15R-4, " Calcareous "Poorly sorted quartz and rare feldspar and pelite clasts; most <0.5 mm," 17-21 cm sandstone rare ~1.0 mm. Rare peloids and skeletal debris. Trace planktonic forams. Sparite cement. 169 "1069A-15R-4, " Coarse "Poorly sorted, possibly bimodal: 0.5 and 1.5 mm. " 38-42 cm calcareous "Single and polycrystalline angular/subangular quartz, rounded feldspar." arkosic Micritic/cryptalgal limestone and pelite clasts. Coarse calcite cement. sandstone Trace forams. 170 "1069A-16R-CC," Boundstone Variety of cryptalgal textures and encrusting organisms; 2-5 cm internal peloidal sediment.