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Table T2. Summary of lithostratigraphic units identified at Site 1095.

Unit Depth
(mbsf)
Thickness (m) Age Lithology and characteristic features

I

0.0--49.3

49.3

Holocene to late Pliocene

Biogenic-rich, massive, intensely bioturbated, dominantly brown silty clays with ice-rafted debris (IRD). Interbedded with laminated silts, silty clays, and siliceous oozes. Separated from underlying Unit II by transition zone of parallel-laminated and cross-laminated silts, silty clays, and diamict beds.

II

49.3--435.5

386.2

late Pliocene to late Miocene

Dominantly repetitively bedded and diatom-bearing cross- and parallel-laminated sands, silts, and clays, gray-greenish. Frequency of sands and silts shows distinct cyclicity. These intervals are intensely bioturbated with enhanced IRD. As minor lithology, diatomaceous oozes are present.

III

435.5--570.2

134.7

late Miocene

Repetitively bedded, parallel-laminated claystone and siltstone with minor bioturbation and decrease of IRD content.

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