Publication Date:
2022-05-26
Description:
A listing of high southern latitude (〉30° S) pre-Pleistocene sediment cores is
given for samples obtained by the coring and drilling programs of the
Lamont-Doherty Geological Observatory, the Antarctic Program of the
Florida State University, the French Museum national d'Histoire naturelle,
and the Deep Sea Drilling Program. Information on geologic age, core
length, lithology, bathymetry, and geographic location are given for each
sediment sample. Ages of cores are given whenever possible to the nearest
sub-epoch (middle Miocene, etc), together with (when known) the fossils
used to determine the age, and the source of the age determination. Many
core ages are from previously unpublished sources. The listing provides
information on approximately 500 different cores. A computer-searchable
version of the database may be obtained by writing to the senior author.
A brief analysis of latitudinal and bathymetric patterns of sedimentation is
also given for the Paleogene, Miocene, and Pliocene of the Southern Ocean.
Throughout the Neogene, an essentially modern pattern of sedimentation is
seen, with carbonate ooze predominating north of the present-day position of
the polar front, siliceous ooze between the polar front and approximately 65°
S, and clay near the Antarctic continent and in water depths 〉4 km.
Paleogene and Cretaceous patterns of sedimentation appear to be different,
but are difficult to distinguish due to plate motion and subsidence, and also
because of the relatively small number of available pre-Neogene sediment
cores.
Description:
Funding was provided by the National Science Foundation
under grant Nos. OCE 79-19092 and DPP83-17087.
Keywords:
Marine sediments
Repository Name:
Woods Hole Open Access Server
Type:
Technical Report
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