Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2307/1552223 |
East Antarctic climate and environmental variability over the last 9400 years inferred from marine sediments of the Bunger Oasis | |
Kulbe, T; Melles, M; Verkulich, SR; Pushina, ZV | |
通讯作者 | Kulbe, T |
来源期刊 | ARCTIC ANTARCTIC AND ALPINE RESEARCH
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ISSN | 1523-0430 |
出版年 | 2001 |
卷号 | 33期号:2页码:223-230 |
英文摘要 | Sediment cores around Antarctica provide a unique opportunity to cross check and supplement the climatic information recorded in ice cores. Suitable high-resolution data, however, have not been available until now from East Antarctica. We present results from the longest continuous postglacial marine sediment succession (1290 cm) ever obtained from an East Antarctic basin. Twenty-one radiocarbon dates show a consistent age to depth correlation over the last 9400 calibrated years BP (cal. yr BP). For this time interval distinct changes in the silicified ice-related biotic species assemblages, accumulation rates of organic carbon, delta C-13 values, and C/N ratios were detected. We demonstrate that these sediment signatures can be used as climate proxies. Our results indicate significant Holocene climatic variability with a climatic optimum between 3500 and 2500 cal. yr BP. This was followed by an abrupt and dramatic cooling that took place within less than 200 yr. Corroborating the results of other researchers we hypothesize that this climatic optimum and its termination was a circumantarctic event which would appear to be out of phase with a proposed global temperature trend (maximum) during the Holocene. |
类型 | Article |
语种 | 英语 |
国家 | Germany ; Russia |
收录类别 | SCI-E |
WOS记录号 | WOS:000169174800013 |
WOS关键词 | LAKE-SEDIMENTS ; ORGANIC-MATTER ; GLACIAL HISTORY ; LATE QUATERNARY ; RESTING SPORES ; ICE ; RECORD ; HILLS ; OCEAN ; DEGLACIATION |
WOS类目 | Environmental Sciences ; Geography, Physical |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/140292 |
作者单位 | (1)Alfred Wegener Inst Polar & Marine Res, D-14473 Potsdam, Germany;(2)State Sci Ctr, Arctic & Antarctic Res Inst, St Petersburg 199397, Russia;(3)VNIIOkeangeol, St Petersburg 190121, Russia |
推荐引用方式 GB/T 7714 | Kulbe, T,Melles, M,Verkulich, SR,et al. East Antarctic climate and environmental variability over the last 9400 years inferred from marine sediments of the Bunger Oasis[J],2001,33(2):223-230. |
APA | Kulbe, T,Melles, M,Verkulich, SR,&Pushina, ZV.(2001).East Antarctic climate and environmental variability over the last 9400 years inferred from marine sediments of the Bunger Oasis.ARCTIC ANTARCTIC AND ALPINE RESEARCH,33(2),223-230. |
MLA | Kulbe, T,et al."East Antarctic climate and environmental variability over the last 9400 years inferred from marine sediments of the Bunger Oasis".ARCTIC ANTARCTIC AND ALPINE RESEARCH 33.2(2001):223-230. |
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