"Leg 207, Site 1258, Hole 1258B Smear Slide Data" Sample Mineral Biogenic Rock Other Leg Site H Cor CT Sct Top (cm) Depth (mbsf) Lithology Barite (17) Calcite (30) Carbonate (35) Clay Mineral (47) Dolomite (62) Feldspar (71) Glauconite (82) Manganese Oxide (124) Mica (118) Opaques (140) Pyrite (169) Quartz (172) Unspecified Minerals (218) Zeolite (222) Benthic foraminifers (236) Calcispheres (29) Coccolith (51) Diatoms (58) Discoaster (61) Echinoid (65) Fish Remains (74) Nannofossils (132) Planktonic Forams (160) Radiolarians (173) Siliceous Sponge Spicules (185) Silicoflagellates (189) calcareous debris (161) Organic Debris Organic Matter (142) Other (145) Comments 207 1258 B 1 R 1 40 0.40 D 5 75 20 Nannofossil ooze with foraminifers 207 1258 B 1 R 4 40 4.90 D 10 65 25 Foraminifer and Nannofossil ooze 207 1258 B 1 R 4 130 5.80 D 10 * 2 68 20 Nannofossil chalk with foraminifers 207 1258 B 2 R 1 50 14.60 D 20 6 40 22 10 2 Nannofossil chalk with foraminifers 207 1258 B 2 R 3 50 17.60 D 15 2 48 25 10 Foraminifer and Nannofossil chalk 207 1258 B 3 R 2 50 25.10 D 20 6 12 30 20 12 Siliceous nannofossil chalk with foraminifers 207 1258 B 3 R 5 50 29.60 D 20 6 12 30 20 12 Siliceous nannofossil chalk with foraminifers 207 1258 B 4 R 1 130 33.40 D 5 * 42 5 48 Nannofossil chalky radiolarite 207 1258 B 4 R 5 40 38.50 D 15 15 47 22 1 Nannofossil chalk with foraminifers and zeolite 207 1258 B 5 R 2 76 43.36 D 5 * 25 2 48 20 Zeolitic nannofossil chalk with foraminifers 207 1258 B 5 R 4 60 46.20 D 10 * 20 1 49 20 Nannofossil chalk with foraminifer and zeolite 207 1258 B 6 R 1 60 51.40 D 10 20 * 48 22 Nannofossil chalk with foraminifers and zeolite 207 1258 B 6 R 4 60 55.90 D 15 15 1 54 15 Nannofossil chalk with Foraminifers and zeolite 207 1258 B 7 R 2 126 63.26 D 26 2 40 30 2 Foraminifer and Nannofossil chalk with clay 207 1258 B 7 R 3 62 64.12 D 8 2 5 40 40 5 Nannofossil and foraminifer chalk with clay 207 1258 B 7 R 6 57 68.57 D 18 2 10 40 25 5 "Nannofossil chalk with zeolite, clay, and foraminifers" 207 1258 B 8 R 4 35 74.95 D 10 15 10 10 * 30 25 "Nannofossil chalk with calcite, zeolite, Calcisphere, clay, and foraminifers" 207 1258 B 9 R 3 60 83.30 D 10 15 2 10 5 * 40 15 3 "Nannofossil chalk with calcite, zeolite, and foraminifers" 207 1258 B 9 R 6 125 88.45 M 10 15 * 2 5 30 5 20 10 3 "Zeolitic chalk with calcite, foraminifers, clay, and nannofossils" 207 1258 B 10 R 1 110 90.40 D 10 15 10 5 40 15 5 "Nannofossil chalk with calcite, zeolite, and foraminifers" 207 1258 B 10 R 3 45.5 92.76 M 5 5 5 10 10 30 30 5 Foraminifer and nannofossil chalk with zeolite and Calcisphere 207 1258 B 11 R 3 77 102.77 D 5 21 1 1 15 2 30 20 5 "Nannofossil chalk with zeolite, foraminifers, and clay" 207 1258 B 11 R 5 41 105.41 M 20 23 2 30 5 * 20 "Zeolitic chalk with calcite, foraminifers, and clay" 207 1258 B 11 R 5 64 105.64 M 10 23 1 2 1 3 * 40 20 "Nannofossil chalk with calcite, foraminifers, and clay" 207 1258 B 11 R 7 29 108.29 D 5 20 3 2 30 35 5 Nannofossil and foraminifer chalk with clay 207 1258 B 12 R 3 94 112.54 D 5 20 2 3 2 40 25 3 Nannofossil chalk with clay and foraminifer 207 1258 B 13 R 3 83 122.03 D 10 15 15 5 20 30 5 "Foraminifer chalk with calcite, zeolite, and nannofossils" 207 1258 B 13 R 5 76 124.96 D 2 2 10 5 46 25 5 5 Nannofossil chalk with zeolite and foraminifers 207 1258 B 14 R 3 65 131.55 D 8 25 10 2 25 30 * Clayey nannofossil foraminifer calk 207 1258 B 14 R 5 65 134.55 D 10 15 5 55 15 * Nannofossil chalk with foraminifer and clay 207 1258 B 16 R 2 23 148.93 M 30 21 5 25 9 10 "Calcite chalk with carbonate debris, clay, and foraminifers" 207 1258 B 16 R 3 65 150.85 D 5 14 1 5 30 20 15 10 "Nannofossil chalk with clay, radiolarians, and foraminifers" 207 1258 B 16 R 5 65 153.85 D 2 5 2 30 10 40 5 1 5 Nannofossil and radiolarian chalk with foraminifers 207 1258 B 17 R 2 70 159.10 D 18 2 30 15 30 5 Nannofossil and radiolarian chalk with clay and foraminifers 207 1258 B 17 R 4 70 161.90 D 3 2 35 15 40 5 Nannofossil and radiolarian chalk with foraminifers 207 1258 B 18 R 1 60 167.10 D 4 2 2 * 40 20 30 2 Radiolarian and nannofossil chalk with foraminifers 207 1258 B 18 R 4 60 171.60 D 5 1 30 20 40 2 * 2 Nannofossil and radiolarian chalk with foraminifers 207 1258 B 19 R 2 30 177.90 D 10 45 10 20 10 5 "Claystone(??) with carbonate, zeolite, foraminifers, and nannofossils" 207 1258 B 19 R 5 30 182.40 D 15 10 10 5 5 15 30 10 "Foraminifer chalk with carbonate debris, clay, quartz, and calcite" 207 1258 B 20 R 1 30 186.00 D 5 12 10 2 10 1 35 20 5 "Nannofossil chalk with pyrite, Calcisphere, clay, and foraminifers" 207 1258 B 20 R 4 110 191.30 D 15 17 5 8 5 20 25 5 Foraminifer chalk with carbonate and nannofossils 207 1258 B 21 R 1 3 195.23 D 36 5 1 5 * 20 30 3 Foraminifer claystone with nannofossil 207 1258 B 21 R 1 78 195.98 D 38 10 5 20 5 15 3 2 2 "Claystone with pyrite, nannofossils, and zeolite" 207 1258 B 21 R 2 2 196.48 D 40 15 * 5 10 30 Claystone 207 1258 B 21 R 2 25 196.71 D 50 10 2 2 3 3 30 Claystone 207 1258 B 21 R 2 51 196.97 M 55 10 5 5 3 12 10 Claystone 207 1258 B 21 R 2 53 196.99 M 74 10 5 10 1 Claystone 207 1258 B 21 R 2 63 197.09 D 10 35 5 8 40 2 clay and Nannofossil chalk with carbonate 207 1258 B 21 R 2 95 197.41 D 10 7 5 2 15 1 40 10 10 "Nannofossil chalk with calcite, foraminifers, and zeolite" 207 1258 B 22 R 2 100 207.20 D 2 2 2 50 40 1 3 foraminifer and nannofossil chalk 207 1258 B 23 R 4 80 219.70 D 4 10 5 1 50 20 10 "Nannofossil chalk with pyrite, carbonate debris, and foraminifers" 207 1258 B 24 R 3 50 227.60 D 5 14 5 3 2 5 1 50 15 Nannofossil chalk with clay and foraminifers 207 1258 B 25 R 1 38 234.08 D 9 25 5 1 50 5 5 Nannofossil chalk with clay 207 1258 B 25 R 5 25 239.95 D 8 50 5 25 2 10 Nannofossil claystone with radiolarians 207 1258 B 25 R 5 76 240.46 D 40 41 2 2 15 Carbonate claystone with foraminifers 207 1258 B 27 R 1 32 253.22 D 5 41 3 1 5 30 15 Nannofossil claystone with foraminifers 207 1258 B 27 R 1 48.5 253.39 M 10 50 20 5 10 5 "Claystone with carbonate, nannofossils, and opaque minerals" 207 1258 B 27 R 1 49.5 253.40 M 10 25 30 15 5 10 5 "Opaque mineral sandstone with nannofossils, carbonate, quartz, and clay" 207 1258 B 27 R 1 54 253.44 M 40 2 8 10 10 10 20 "Calcareous chalk with zeolite, quartz, nannofossils, and foraminifers" 207 1258 B 29 R 2 86 264.96 D 10 10 50 30 Foraminifer and nannofossil chalk with calcite and zeolite 207 1258 B 30 R 1 60 272.80 D 5 5 * 1 7 * 67 15 Nannofossil chalk with foraminifers 207 1258 B 30 R 3 60 275.80 D 5 10 * * 10 63 12 Nannofossil chalk with zeolite and foraminifers 207 1258 B 31 R 2 60 284.00 D 25 10 1 45 18 Nannofossil chalk with foraminifers and calcite 207 1258 B 31 R 4 60 287.00 D 10 10 3 47 30 Foraminifer and nannofossil chalk 207 1258 B 32 R 4 60 296.60 D 10 8 5 * 1 1 * 50 25 Foraminifer and nannofossil chalk 207 1258 B 32 R 7 60 301.10 D 17 5 1 1 2 44 30 Foraminifer and nannofossil chalk 207 1258 B 33 R 1 60 301.70 D 20 1 3 56 20 Nannofossil chalk with foraminifers 207 1258 B 33 R 3 60 304.70 D 20 * 5 65 10 Nannofossil chalk with foraminifers 207 1258 B 34 R 1 73 311.53 D 13 15 1 5 46 20 * Nannofossil chalk with foraminifers and clay 207 1258 B 34 R 4 90 316.20 D 8 10 1 3 56 22 Nannofossil chalk with foraminifers 207 1258 B 36 R 3 43 333.53 D 10 62 * 25 3 Nannofossil clay 207 1258 B 36 R 3 57 333.67 D 10 60 * * 30 Nannofossil clay 207 1258 B 38 R 1 77 350.07 D 10 50 1 * 36 2 1 Nannofossil clay 207 1258 B 38 R 2 109 351.89 D 10 80 * 10 * "Calcareous clay (not really representative, too hard)" 207 1258 B 39 R 3 60 362.60 D 5 72 1 2 20 Clay with nannofossils 207 1258 B 39 R 6 60 367.10 D 10 52 3 30 5 Nannofossil clay 207 1258 B 40 R 1 60 369.20 D 5 40 1 1 3 39 8 3 Nannofossil clay 207 1258 B 40 R 2 70 370.30 D 7 36 * 4 50 3 Clayey Nannofossil chalk 207 1258 B 42 R 1 65 384.45 D * 8 30 * * 3 3 487 8 Clayey nannofossil chalk 207 1258 B 42 R 3 50 387.10 D 5 40 * * 1 50 3 Clayey nannofossil chalk 207 1258 B 43 R 3 108 391.78 D 5 3 17 3 2 70 Nannofossil chalk with pyrite 207 1258 B 44 R 1 33 393.83 D 5 10 10 2 73 Nannofossil chalk with quartz and pyrite 207 1258 B 44 R 2 38 394.54 M 2 15 25 15 43 "Nannofossil sandstone with glauconite, fish debris, and quartz" 207 1258 B 44 R 3 87 396.20 M 15 55 30 Carbonaceous clay with barite 207 1258 B 44 R 4 44 397.15 D 1 53 5 1 40 Carbonaceous claystone 207 1258 B 45 R 1 50 398.00 M 2 10 31 10 5 2 40 Carbonaceous claystone with calcite and zeolite 207 1258 B 45 R 1 145 M * 20 58 5 * 5 2 10 Calcareous claystone 207 1258 B 45 R 4 32 401.08 D 5 48 3 2 20 10 5 2 5 Claystone with nannofossil and zeolite 207 1258 B 45 R 4 38 401.14 M 5 53 10 3 15 4 10 "Claystone with nannofossils, pyrite, and zeolite" 207 1258 B 46 R 2 25 403.99 M 55 1 10 2 20 2 10 Claystone with pyrite and zeolite 207 1258 B 46 R 2 60 404.34 M 1 5 45 2 10 2 20 10 5 "Claystone with quartz, foraminifers, and nannofossils" 207 1258 B 50 R 1 112 423.42 D 45 1 3 3 5 3 20 10 10 Claystone with foraminifer and nannofossils 207 1258 B 51 R 1 76 427.06 M 5 20 5 20 20 20 10 Biogenic carbonate 207 1258 B 52 R 2 50 433.51 D 10 35 2 33 10 10 Nannofossil clay 207 1258 B 53 R 1 80 436.70 D 10 10 2 * 50 25 3 Nannofossil chalk with carbonate grains (calcareous chalky sand) 207 1258 B 55 R 2 85 447.47 D 10 10 13 30 3 25 5 4 Calcareous nannofossil sand with quartz 207 1258 B 55 R 3 12 447.81 D 10 46 5 21 5 10 3 Clay with nannofossils 207 1258 B 56 R 1 40 451.60 D 10 10 10 38 15 10 5 2 Nannofossil chalk with carbonate and foraminifers 207 1258 B 57 R 2 48 457.18 D 10 32 2 3 35 3 15 Clayey chalk with organic matter