Table 5. Site 1041 smear-slide descriptions. "Note: H = Hole, T = Type, Sec = Section, Impor = Importance, A = Abundant, A- = Somewhat abundant, C+ = Very common, C = Common, C- = Somewhat common, T = Trace, Blank box = not observed." Sample number Impor Size Composition Fossils Sediment or Rock Name Comments Leg Site H Core T Sec cm mbsf Described by Major lithology Minor lithology Med.-coarse sand Fine sand SiLight size Clay size Quartz Feldspar Clay Rock Fragments Volcanic Glass amphibole Glauconite Phosphate Dolomite Carbonate Micrite Opaque framboid Nannofossils Foraminifers Diatoms Radiolarians Silicoflagellates Sponge Spicules Fish remains Peloids/pellets Other 170 1041 A 1 H 1 6 0.06 OMS X A C T C C C C T C C C Clayey siLight with diatoms 170 1041 A 1 H 1 70 0.7 JM X C C+ A C A T T T T T T T T Medium olive green silty clay 170 1041 A 1 H 3 107 4.07 MM X C A T A C- T C T C- T T Olive green silty clay with glauconite 170 1041 A 1 H 3 117 4.17 MM X A C C C C- C- A C+ Dark gray olive green glauconite sand 170 1041 A 1 H 5 84 6.84 MM X C- A A C C- A T T C- T T Light olive green clayey silt 170 1041 A 2 H 1 101 8.41 NL X T C A T C- A C C- T T T C- T Olive green silty clay 170 1041 A 2 H 2 40 9.3 NL X T C A C- T A C T T T T C- T T C+ T T T Yellowish olive green silty clay with diatoms Rock fragments are tephra. Other is euhedral zircon crystal. Diatom tests filled with framboids. 170 1041 A 2 H 4 57 12.47 NL X C A C+ C- C- C A C- T T T T T Greenish brown crystal-vitric ash Rock fragments are tephra; glass is clear 170 1041 A 2 H 4 61 12.51 NL X T A C T T T T A T T T T Light greenish gray vitric ash "Volcanic glass is clear, minor amount brown" 170 1041 A 2 H 5 15 13.55 NL X T C- A C+ T T C- C A T T C- C- T Light olive green vitric ash "May be flow-in: looks like a mixture of ash (2H-4, 61) and " "olive green silty clay (2H-1, 101). Rock fragments are tephra." 170 1041 A 3 X 1 60 14.9 NL X T C A C- C- A C+ C- T T T C- T T "Dark olive green silty clay, Firm" Pollen; rock fragments are tephra 170 1041 A 3 X 2 39 16.19 NL X T C A C- C- A T T T T T T T C- T T "Yellowish olive green silty clay, Firm" Diatoms filled with framboids. Rock fragments are tephra. "Glass is clear, minor glass is brown" 170 1041 A 3 X 3 30 17.6 NL X C A C- C- A T T T T T C- T T "Olive green silty clay, Firm" Rock fragments are tephra 170 1041 A 3 X CC 3 20.68 NL X T A C C A C- C+ C- C- T C- T T T T C- T T T Light gray silty sand Rock fragments are tephra 170 1041 A 4 X 1 47 23.87 NL X T C A C- C- A T C- T T T C- T T T T Dark olive green silty clay Rock fragments are tephra 170 1041 A 4 X 1 75 24.15 NL X T C A T T T C- A T C C+ T T Dark gray vitric ash with framboids "Rock fragments are tephra. Glass mostly clear, " tephra brown or green 170 1041 A 5 X 1 23 32.63 NL X T C A C- C- A C- C- T T T T T T C- T T "Olive green silty clay, Firm" "Rock fragments are tephra. Diatom, " foraminifer tests filled with framboids 170 1041 A 5 X CC 24 34.05 NL X T A A C- C- A C T T T T T T T T Dark olive green clayey silt T other = wood/plant material 170 1041 A 6 X 1 110 36.5 N X T A C+ C- C- A C- C T T T C- T T T C- T T Olive green clayey siltstone Rock fragments are tephra; pollen 170 1041 A 6 X 2 23 37.13 N X T C A T T A C- T T T T T T T C- T T T Dark olive green silty claystone Other = biotite. Rock fragments = tephra 170 1041 A 6 X 4 30 40.2 N X T A C C- T T C A T C- T C- T Greenish gray vitric ash Glass is clear + minor brown glass. Rock fragments are tephra 170 1041 A 6 X CC 26 41.13 N X C+ A T C+ C T A T T C- T T T C- T C- T Dark gray sandy siltstone with framboids 170 1041 A 7 X 2 20 43.2 N X T C A C- T A C C- T T T T T T C- T T T Dark greenish gray silty claystone "Rock fragments are tephra, polycrystalline quartz. " "Glass is clear, brown. Other=biotite" 170 1041 A 7 X 3 28 44.78 N X T A C C- C C C+ A T T C- T Brownish green crystal-lithic vitric ash 170 1041 A 7 X 5 120 48.7 N X T C- A A C C- A C+ C- T T T T T T C- T T Olive green sandy clayey siltstone 170 1041 A 7 X CC 15 50.54 N X T C A- A C- C A C+ T T T T T T C- T Dark greenish gray silty claystone 170 1041 A 8 X 1 120 51.8 MM X T A C C C- C- C T T C- C+ C- T T Olive green clayey siltstone with siliceous microfossils 170 1041 A 8 X 3 9 53.69 MM X C A C- A T C- C- C C- T T Dark olive green silty claystone 170 1041 A 8 X 5 98 57.13 MM X C A C T A C+ T T T T T C C- C- Dark olive green silty claystone with ash 170 1041 A 9 X 1 73 60.33 JM X C- C+ A C T C+ A T T C- T T T T Light gray clayey vitric ash 170 1041 A 9 X 4 35 64.45 MM X A C- C- T C- C T T T C- C- C Olive green clayey siltstone 170 1041 A 9 X 6 32 67.42 MM X C A C T A C T T T T C C Olive green silty claystone 170 1041 A 10 X 1 9 68.69 MM X A C+ T C A T T Light green gray limestone 170 1041 A 10 X 1 68 69.28 HT X C C+ A C C- A C T T T C- C- T T Olive green sandy silty claystone 170 1041 A 10 X 5 112 75.72 OMS X T C A C- C A C- C T T C T T T T C T T Dark olive green silty claystone 170 1041 A 11 X 3 87 81.54 OMS X T C A T C- A C- C- C- T T T T T T T C- T Dark olive green silty claystone 170 1041 A 11 X 5 62 84.29 HT X T A C- T A T T T A C- C T T T T Light brown calcareous claystone Other= pollen; T aragonite? 170 1041 A 12 X 1 25 88.15 NL X T C A C- C- A T C- T T T T T C T T Dark olive green silty claystone Rock fragments are tephra 170 1041 A 12 X 2 48 89.88 NL X C A T T A T C- T T T T T C T T Olive brown claystone Rock fragments are tephra 170 1041 A 12 X 3 109 91.99 NL X C A C- C- C- T C- A T T T T T T T T Yellow brown vitric ash Rock fragments are tephra. Some diatoms are filled with framboids 170 1041 A 12 X 6 42 95.82 NL X T C A T C A T C T T T T T T T Olive green silty claystone Euhedral amphibole and feldspar. Some diatoms framboid-filled. 170 1041 A 13 X 1 40 97.9 NL X T C A C T A C+ C T T T T T Olive green silty claystone. 170 1041 A 13 X 2 27 99.09 NL X T C A C- C- A T C T T T T T T T Olive green silty claystone 170 1041 A 13 X 2 38 99.2 NL X C- A C T C- C C- A C+ T C- Light brownish gray amphibole-vitric ash with framboids "Euhedral amphibole, feldpar; some plagioclase is zoned." 170 1041 A 14 X 3 84 110.79 NL X T A T C- A T C T T T T C- T T Olive green claystone 170 1041 A 14 X 4 21 111.66 NL X C A T C- A T T T T T T C+ T C- T T Brownish green claystone with foraminifers Burrow fill 170 1041 A 15 X 2 32 117.91 NL X T C+ A C- C- A C C- T T T T T Dark olive green silty claystone " Euhedral amphibole, plagioclase" 170 1041 A 15 X 5 23 121.25 NL X C- A T T A C- C T T T T T T Dark olive green claystone 170 1041 A 16 X 2 99 128.89 HT X T C+ A C C A T C T T T C- T C- T C- Grayish green silty claystone Possible pyroxene (T) 170 1041 A 16 X 6 22 132.25 MM X C+ A C- A C+ T T T C C- T C T Claystone with vitric ash 170 1041 A 17 X 1 48 136.38 JM X A C- T C- A T Dolomitic limestone (fill) 170 1041 A 17 X 2 32 137.1 JM X C- A C- T A C- T T T C- C- T T T T Claystone 170 1041 A 18 X 1 31 145.81 JM X C- A C C- C T C T A C- Calcite cemented crystal vitric tuff 170 1041 A 18 X 3 68 148.7 OMS X C A C- C A C C- T T T T C- T C T T Dark olive green silty claystone 170 1041 B 1 R 1 49 155.49 JM X T A T A T C- T C C C T C- T T Dark brown green calcareous claystone 170 1041 B 2 R 1 2 164.62 MM X A A C- C+ C- C- A T T T Crystal-vitric ash (hydrate host) Ash cemented by gas hydrate 170 1041 B 2 R 1 90 165.5 OMS X C A T C- A T C T T T C C T T T T Dark olive green claystone 170 1041 B 2 R 5 90 170.16 OMS X C A T C A C- T T C T T T T Dark olive green silty claystone 170 1041 B 3 R 3 67 176.85 JM X T C+ A C- T A T C- T T T C- T T T T Dark olive green silty claystone Clear and brown glass 170 1041 B 3 R 7 39 181.41 JM X C- A C- T A C- T T T T T C- T T T Dark olive green silty claystone 170 1041 B 4 R 1 50 184.3 NL X T C A C- T A T T T T C- C- T C- T T T Olive green claystone Framboid clusters to 16 microns; framboids inside glauconite grains and diatoms. 170 1041 B 4 R 3 84 187.64 NL X C- A T T A T C- T T T T T C T C+ T "Greenish brown claystone with nannofossils, diatoms" "Burrow fill. Rock fragments are tephra, " polycrystalline quartz 170 1041 B 4 R 6 84 191.25 NL X C- C A C C- A C- C- T T T T T C- T C- T T Olive green silty claystone Rock fragments are tephra with feldspar microlites + rare quartz. Other=zircon? 170 1041 B 4 R 7 16 191.77 NL X T C A T T A T C T T T T T T T C- T Dark olive green claystone Some diatoms are filled with framboids 170 1041 B 5 R 3 22 196.42 NL X T C- A C- T A T C- T T T T T C T C- T C T Olive green claystone with nannofossils Other=chitonous fragment 74 microns across 170 1041 B 5 R 5 48 199.68 NL X T- C A C C A T C- T T C- T T C- T T T Dark olive green silty claystone Other=pollen grain 170 1041 B 6 R 2 41 204.81 NL X T C+ A C- T A T C+ T T T T T C- T C- T T T Greenish brown silty claystone with ash Other=pollen 170 1041 B 6 R 2 60 205 NL X T C A C- C A T C T T T T C- T T T Olive green ashy claystone 170 1041 B 6 R 5 30 207.7 NL X T C- A T C- A T C- T T T T T T C T Dark olive green claystone 170 1041 B 7 R 1 23 212.93 NL X C- A T T A C- T T T T C+ C- C C- T Brownish green claystone with nannofossils and diatoms Burrow fill. Some diatom tests filled with framboids. Other = pollens. Some brown glass. 170 1041 B 7 R 3 20 214.9 NL X C A T T A T C T T C- T C- T Olive green ashy claystone Euhedral zoned plagioclase. Rock fragment is polycrystalline quartz. Diatoms filled with framboids. 170 1041 B 7 R 7 18 219.46 NL X C A C- C- A T C- T T T T T C- C T T T Dark olive green silty claystone Rock fragment = pumice. Other = pollen 170 1041 B 8 R 2 62 224.25 NL X T C A C- T A C- T T T T T C T T Olive green claystone 170 1041 B 8 R 4 12 225.99 NL X C A T T A T C- T T T T T C- T Dark olive green claystone Framboid clots >60 microns. Rock fragments = polycrystalline quartz 170 1041 B 9 R 2 45 233.85 JM X C- A C- A T T T C- T T T T T Dark gray green claystone "Other=high birefringence, high relief unknown mineral" 170 1041 B 9 R 3 5 234.94 OMS X A T C- C A T T C- Light gray crystal-vitric ash 170 1041 B 10 R 3 72 244.51 HT X C A T C A C T C- C- T C+ T C- T Dark olive green diatomaceous claystone 170 1041 B 11 R 2 89 253.29 HT X A C+ C C- C A C- C- T C- Light yellowish green clayey limestone 170 1041 B 11 R 1 31 251.51 JM X C- A T C- A C- T T T C- T C- C- T Dark olive green claystone 170 1041 B 11 R 4 30 255.7 JM X C- A T T A T T T C- C- T C+ T T C- T Medium olive green diatomaceous claystone 170 1041 B 12 R 1 60 261.5 OMS X A C- C- C C C- T T T C- C T C- T Olive green clayey siltstone with diatoms 170 1041 B 12 R 3 74 263.78 JM X C- A T A T T T T T C- T C+ T T C- Olive green diatomaceous claystone 170 1041 B 12 R 5 107 267 JM X C- A A C C- A T C- T T C- T C- T C- T T Dark gray ashy sandy siltstone. 170 1041 B 13 R 3 59 274.09 OMS X T A C C C- A T C T T C- T C C- C+ Olive green ashy siltstone 170 1041 B 14 R 3 25 282.96 JM X T C A C- C- A T T T T C- C- T C- T T T T Olive green calcareous silty claystone 170 1041 B 15 R 1 14 290.04 JM X T A C T T T T C- T C- C T C Light green limestone Other = aragonite 170 1041 B 16 R 1 83 300.33 NL X T C+ A C- C C+ T T T T T T C C- T T T C- Dark olive green silty claystone Other = pollen (T); zeolite Phillipsite (T+) 170 1041 B 16 R 3 2 301.72 NL X T A T T T T C- T C C A T ? T T T Light brown limestone with glauconite laminae "Hard clast. Other = dolomite (T), chiton (T)" 170 1041 B 16 R 3 83 302.53 NL X T C A C- C- A T C+ T T T C- T Dark gray ashy claystone 170 1041 B 16 R 4 136 304.56 NL X C- A C- C C C- T C- T T T T C- T T T T T Dark greenish gray clayey sandy siltstone Partial dissolution of sponge spicules. Other = zeolite Phillipsite (T) 170 1041 B 17 R 1 17 309.37 NL X T A T T T C- A T Light brownish gray limestone "Phosphate is in-situ, not transported" 170 1041 B 17 R 1 70 309.9 NL X T C+ C- C+ C C- C C- T T T C- T C- T T Dark greenish gray clayey siltstone Rock fragments are tephra 170 1041 B 17 R 3 134 313.54 NL X C- C+ C+ C- C- C C C- T T T T C- T T Dark gray sandy siltstone "Rock fragments are tephra, polycrystalline quartz" 170 1041 B 17 R CC 6 314.08 NL X T A T T T T C A T C C Light brownish gray limestone 170 1041 B 18 R 1 123 320.03 NL X C A T+ C C+ T+ C C- C- T T T C- ? T T T Dark gray sandy siltstone Rock fragments are tephra. Phosphate grains have framboids. 170 1041 B 19 R 1 15 328.55 NL X C- A C C+ C- A C- T T T T T Brown sandy silty claystone layer "Other = pollen. Some glass is brown, most clear." 170 1041 B 19 R 1 120 329.6 NL X T A C C+ C- C C T T T T T T T T T T Dark greenish gray clayey siltstone Opaque = pyrite cubes? 170 1041 B 19 R 4 22 332.55 NL X T A C C- C C+ C- C T T T T T T T Olive gray clayey siltstone Other = zircon. Rock fragments = tephra 170 1041 B 20 R 2 64 339.06 NL X C A C+ T C+ C+ T C C- C C- T C- T T T T Dark greenish gray silty sandstone Other = pollen and spores. Some phosphate may be authigenic. Euhedral to subhedral zoned plagioclase. Rock fragments are tephra. 170 1041 B 20 R 3 120 341.12 NL X T A T C- C T C+ C- T T T T T T T Dark brown layer of vitric-crystal-lithic tuff. "Other = pollen and spores. Framboids in spicules, " "spores, and diatoms. Euhedral zoned" plagioclase. Rock fragments are tephra. 170 1041 B 21 R 2 30 349.4 NL X C A C- C C C- C- T T C- T T T T T T T T Dark greenish gray sandy siltstone "Other=pollen & spores, some pyritized; also " zeolite phillipsite (T) Some spicules pyritized. Signs of silica dissolution in embayed spicules. 170 1041 B 22 R 2 59 358.15 X C- A T T A T T T T T C T T C- T T T Olive green calcareous claystone 170 1041 B 22 R 4 126 361.48 OMS X C- A C C+ T C C- T T T T T C T T Dark olive green clayey siltstone with diatoms 170 1041 B 23 R 1 9 366.89 JM X C A T T C+ A A T T T Very light greenish gray dolomitic limestone 170 1041 B 23 R 3 30 370.1 JM X C A C- T A T C- T T T T C- T T Dark olive green silty claystone 170 1041 B 24 R 1 43 376.83 OMS X T A T T A A T T T T T T T T Olive green ashy claystone 170 1041 B 24 R 2 54 378.44 HT X C- A C+ C- C+ C+ C C C- T T C- T T Olive green dolomitic clayey siltstone 170 1041 B 25 R 1 128 387.28 OMS X C A C C C+ C+ T T C- C- C- T T Dolomitic clayey siltstone 170 1041 B 25 R 2 55 388.05 OMS X T A T T A C- C- T T T T T T Dolomitic claystone 170 1041 C 1 R 1 20 395.2 JM X C- C A C- C- C T A T C- T T T T Medium green gray crystal-vitric ash 170 1041 C 1 R 3 38 397.13 OMS X T C- A T C- A C T T C- C T T Dark olive green claystone 170 1041 C 2 R 3 20 407.3 MM X C- A C- C- A C- C- T T T C+ T T T Dark olive green claystone with diatoms 170 1041 C 3 R 2 22 414.89 NL X C C+ C- C C- C+ C T C T T C- T T C- T T T T C- T T Greenish gray silty sandstone In sparsely granule-pebble sandstone. Other=spores. "Tests are framboid-filled, 1 spicule has glauconite" fill. Both clear and brown volcanic glass. 170 1041 C 3 R 2 61 415.28 NL X T C A C- C C+ C C- T T T C T T T C- T T Greenish gray silty claystone. Other = pyroxene (T). Spicules are pitted; tests are framboidal.