Hole 340-U1393A-1H Section 1, Top of Section: 0.0 CSF-A (m)
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1 Hole 4-U9A-H Section, Top of Section:. CSF-A (m) Dark volcaniclastic coarse to very coarse sand, with rare granules (up to 4 mm), mainly andesitic lava with rare carbonate grains. Similar in composition to 995-recent volcaniclastic material found previously in the same area below sea floor. Upper cm disturbed, probably by coring, and contains fine mud clast. A second flat lying mud clast at cm.. log
2 Hole 4-U9A-H Section, Top of Section:.5 CSF-A (m) Dark volcaniclastic medium to coarse sand, with patches of coarser grains that may be coring disturbance or liquefaction?.5 log
3 Hole 4-U9A-H Section, Top of Section:. CSF-A (m) Dark volcaniclastic medium sand, with isolated granules. log
4 Hole 4-U9A-H Section 4, Top of Section:.5 CSF-A (m) Dark volcaniclastic coarse sand, with clasts up to 4.5 cm in lower part. Clasts mainly andesitic, some hydrothermally altered. log
5 Loose clasts that may not be in place. Mainly andesitic, some oxidized. size to 5 cm. Hole 4-U9A-X Section CC, Top of Section: 4.4 CSF-A (m) log
6 Loose clasts that may not be in place. Mainly andesitic. size to 5 cm. Hole 4-U9A-4X Section CC, Top of Section:.8 CSF-A (m).8 log
7 Loose clasts that may not be in place. Mainly andesitic. size to cm. Hole 4-U9A-5X Section CC, Top of Section: 8.8 CSF-A (m) 8.8 log
8 Loose clasts that may not be in place. Mainly andesitic. size to 6 cm. Hole 4-U9A-6X Section CC, Top of Section: 8.4 CSF-A (m) 8.4 log
9 Hole 4-U9A-7X Section CC, Top of Section: 8. CSF-A (m) Loose clasts that may not be in place, mainly andesitic some oxidized. Up to cm in size. Some limestone clasts. Basal 6 cm comprises a 6 cm andesitic clast surrounded by fine matrix, which has angular fine fragments. log
10 Sample 4-U9A-H-4-W 46/49-TSB-TS# 4-U9A-4X-CC-W /-TSB-TS# 4-U9A-6X-CC-W /-TSB-TS# 4-U9A-6X-CC-W 8/-TSB-TS#4 4-U9A-7X-CC-W 4/4-TSB-TS#5 Top [cm] Bottom [cm] Top Depth [m] Bottom Depth [m] Groundmass percentage [%] Groundmass modal [mm] Groundmass comments Microlites of plagioclase, orthpyroxene, and oxides in a microcrystalline matrix. Microlites plagioclase, orthpyroxene, and oxides in a microcrystalline matrix. Plagioclase, oxides, and orthopyroxene microlites in a microcrystalline matrix. Composed of microlites of plag, pyx, and oxides. Contact between massive andestite and fragmental brecciated material. Brecciated material shows flow banding/lineation. Most mineral grains are <.mm in the brecciated region. Volcanic grain [%] Volcanic grain modal size [mm] Biogenic grain [%] Mineral grain [%] Mineral grain modal size [mm] Lithic grain [%] Lithic grain modal size [mm] Olivine present [%] Olivine size MIN [mm] Olivine shape Olivine comment Plagioclase present [%] Plagioclase size MAX [mm] Plagioclase shape Plagioclase habit Plagioclase comment Clinopyroxene present [%] Clinopyroxene size MAX [mm] Clinopyroxene shape Clinopyroxene habit Clinopyroxene special features 7 4 euhedral lath Albitic twinning euhedral equant Orthopyroxene present [%] Orthopyroxene size MAX [mm] Orthopyroxene shape Orthopyroxene habit Orthopyroxene comments Oxide inclusions common Amphibolite present [%] Amphibolite size MAX [mm] Amphibolite shape Amphibolite habit Amphibolite comments 5 euhedral equant 5.8 subhedral equant 8.5 euhedral lath Albitic twinning 7.7 euhedral equant 7.7 euhedral elongate 6.8 subhedral tabular 7.7 euhedral lath 9. subhedral equant 5.9 euhedral elongate 5.4 subhedral tabular 75.5 euhedral lath Some potential lineation in the plag microphenocrysts..7. euhedral elongate 5.8 subhedral 7 euhedral lath. euhedral tabular. euhedral elongate Oxidized; contain thin reaction rims. Oxides present [%] Oxides size MAX [mm] Oxides shape. subhedral Oxides habit Oxides comments Quartz present [%] Quartz size MAX [mm] Quartz shape Quartz habit Comment Andesite lava, no flow lineation, matrix has significant void space. Andesite lava, potentially some glass in the groundmass; groundmass has significant void space. Andesite lava, no flow lineation. Andesite lava; several spots where qtz is completely rimmed by clinopyroxene.
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