Late Holocene stable isotope chronology and meltwater discharge event in Maxwell and Admiralty bays, King George Island, Antarctica SCIE SCOPUS

Cited 13 time in WEB OF SCIENCE Cited 15 time in Scopus
Title
Late Holocene stable isotope chronology and meltwater discharge event in Maxwell and Admiralty bays, King George Island, Antarctica
Author(s)
Khim, BK; Il Hoon, H; Kim, Y; Shin, IC
Publication Year
2001-06
Abstract
Two short gravity cores were retrieved to obtain palaeoclimatic information from Maxwell and Admiralty bays, King George Island, South Shetland Islands. AMS (14)C age dates, sediment properties (grain size, TOC and CaCO(3)) and stable oxygen and carbon isotope compositions of benthic foraminifera. (Globocassidulina biora) show downcore variations that characterize depositional conditions during the late Holocene. In particular, delta (18)O values of benthic foraminifera are lowest at approximately 2500 yr BP in both cores. A low delta (18)O time-equivalent excursion in both cores is interpreted to reflect a distinct subglacial meltwater discharge intensified by warm climatic conditions. An increased proportion of fine-grained detritus and higher TOC in the cores at Us level suggests that enhanced meltwater supply may have resulted in increased primary productivity. This meltwater discharge event provides evidence of climatic instability during the late Holocene at King George Island.
ISSN
0954-1020
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5891
DOI
10.1017/S0954102001000256
Bibliographic Citation
ANTARCTIC SCIENCE, v.13, no.2, pp.167 - 173, 2001
Publisher
CAMBRIDGE UNIV PRESS
Subject
SOUTH SHETLAND-ISLANDS; ATMOSPHERIC C-14; GREENLAND ICE; SEDIMENTS; MARINE; RECORDS; SEA; OSCILLATIONS; LINKAGES; DEPOSITS
Keywords
climate; (14)C age; King George Island; late Holocene; meltwater; stable isotope
Type
Article
Language
English
Document Type
Article
Publisher
CAMBRIDGE UNIV PRESS
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse