Table T3. Lithologic units with depth interval, distinguishing characteristics, and main sediment facies, Site 1185.

Table T3. Lithologic units with depth interval, distinguishing characteristics, and main sediment facies, Site 1185.

Core, section,
interval (cm)

Depth interval
(mbsf)

Unit

Distinguishing
characteristic

Age

Main sediment facies

Other characteristics

192-1185A-

2R-1, 0, to 8R-1, 14 250.60-308.54 II Chalk upper Eocene Nannofossil chalk with radiolarians to radiolarian nannofossil chalk Planktonic foraminifers are very rare.

192-1185B-

2R-1, 0, to 2R-1, 151 308.00-309.51 II Chalk upper Eocene Nannofossil chalk with radiolarians to radiolarian nannofossil chalk Planktonic foraminifers are very rare.

192-1185A-

8R-1, 14, to 11R-1, 92 308.54-328.70 Basement Basalt flows Cretaceous Basalt Rare interlava limestone contains very poorly preserved foraminifers and nannofossils.

192-1185B-

2R-2, 0, to 28R-1, 104 309.51-526.10 Basement Basalt flows Cretaceous Basalt Rare interlava limestone contains very poorly preserved foraminifers and nannofossils.

Core, section, interval (cm)	Depth interval (mbsf)	Unit	Distinguishing characteristic	Age	Main sediment facies	Other characteristics
192-1185A-
2R-1, 0, to 8R-1, 14	250.60-308.54	II	Chalk	upper Eocene	Nannofossil chalk with radiolarians to radiolarian nannofossil chalk	Planktonic foraminifers are very rare.
192-1185B-
2R-1, 0, to 2R-1, 151	308.00-309.51	II	Chalk	upper Eocene	Nannofossil chalk with radiolarians to radiolarian nannofossil chalk	Planktonic foraminifers are very rare.
192-1185A-
8R-1, 14, to 11R-1, 92	308.54-328.70	Basement	Basalt flows	Cretaceous	Basalt	Rare interlava limestone contains very poorly preserved foraminifers and nannofossils.
192-1185B-
2R-2, 0, to 28R-1, 104	309.51-526.10	Basement	Basalt flows	Cretaceous	Basalt	Rare interlava limestone contains very poorly preserved foraminifers and nannofossils.

Notes: Depth intervals are based on curated depths. Based on changes in drilling conditions, the top of basement in Hole 1185A was 312.0 mbsf (see "Operations").