Marine sediment cores from the continental shelf around Anvers Island, Antarctic Peninsula region

Sediment core samples are described from the area adjacent to Anvers Island north of the Antarctic Peninsula. The sequence is divided into three lithologic units, siliceous mud, alternation sandy silt and siliceous mud, and sandy silt with gravel, in descending order. These units suggest sedimentary...

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Bibliographic Details
Main Authors: Nishimura,Akira, Tanahashi,Manabu, Tokuhashi,Shuichi, Oda,Hirokuni, Nakasone,Toru
Format: Report
Language:English
Published: Geological Survey of Japan/Geological Survey of Japan/Geological Survey of Japan/Geological Survey of Japan/awasaki Geological Engineering Co., Ltd. 1999
Subjects:
late Quaternary
AMS radiocarbon ages
sea bottom sediments
Antarctic Peninsula
Antarctic
The Antarctic
Anvers
Anvers Island
Antarc*
Ice Sheet
Polar geoscience
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3053
http://id.nii.ac.jp/1291/00003053/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3053&item_no=1&attribute_id=18&file_no=1
Description
Summary:Sediment core samples are described from the area adjacent to Anvers Island north of the Antarctic Peninsula. The sequence is divided into three lithologic units, siliceous mud, alternation sandy silt and siliceous mud, and sandy silt with gravel, in descending order. These units suggest sedimentary environmental changes from under the ice sheet, to marine with highly influenced by fluctuation of the ice sheet, and finally to open marine. These major environmental changes are dated to ca. 16 ka BP and ca. 11.5 ka BP, respectively, based on uncorrected radiocarbon ages of organic carbon.

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