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Table T4. Lithologic surfaces and their interpretation, Site U1351. (See table note.)

Lithologic
surface
Hole, core, section,
interval (cm)
Depth
CSF-A (m)
Overlying lithology Nature of significant surface Seismic
sequence
boundary
Predicted
depth
(m)
Preliminary biostratigraphy
(Ma)
  317-
U1351A-S1 U1351A-3H-3, 74 15.93 Shelly Sharp basal contact U19 17 <0.29 (CN); possibly <0.1 (CN)
U1351B-S1 U1351B-2H-6, 68 15.98 Shelly Sharp basal contact      
U1351A-S2 U1351A-6H-1, 26 27.76 Shelly sand Sharp basal contact U18 31 <0.29 (CN); possibly <0.1 (CN)
U1351B-S2 U1351B-5H-3, 3 31.00 Sand Sharp basal contact      
U1351B-S3 U1351B-8H-4, 5 52.25 Muddy gravely sand Sharp basal contact; burrows beneath U17 51 0.29 (CN)–0.44 (CN)
U1351B-S4 U1351B-10H-2, 45 67.27 Sandy shelly mud Gradational contact separating sandy, shelly muds above from shelly sands beneath; possible cave-in U16 64 0.44 (CN)–1.01 (CN)
U1351B-S5 U1351B-12H-1, 122 76.92 Muddy, shelly sand Burrowed; incomplete recovery U15 86 1.34–1.69 (CN)
U1351B-S6 U1351B-19X-2, 104 144.14 Shelly sand Sharp basal contact U13 135 Pleistocene/Pliocene boundary sediments above 1.69–1.81; below ?>2.7 (PF)
U1351B-S7 U1351B-22X-1, 102 171.42 Shelly sandy mud Sharp basal contact; burrowed clays beneath U12 166 ?>2.7 (PF)
U1351B-S8 U1351B-30X-5, 80 253.90 Shelly sand Well-preserved shells and fragments in a muddy sand matrix; sharp burrowed contact U10 237 3.7 (CN)–4.3 (PF)

Note: CN = calcareous nannofossil, PF = planktonic foraminifer.

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