中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A diatom record of centennial resolution for the Kazantsevo Interglacial stage in Lake Baikal (Siberia)

文献类型:期刊论文

作者Rioual, P; Mackay, AW
刊名GLOBAL AND PLANETARY CHANGE
出版日期2005-04-01
卷号46期号:1-4页码:199-219
关键词Lake Baikal Last Interglacial Kazantsevo Diatom Biovolume Accumulation Rate
ISSN号0921-8181
DOI10.1016/j.gloplacha.2004.08.002
文献子类Article
英文摘要Diatom analysis of a sediment core from the Northern basin of Lake Baikal (Siberia) has been carried out with focus on the Kazantsevo Interglacial period (equivalent to the Eemian in Europe). The age model, based on palaeomagnetism, indicates that this stage lasted about 11,000 years in the region of Lake Baikal, from ca. 128 to 117 ky BP. Diatom data (sampling resolution of 1-cm interval, ca. 130 years), including both relative percentage and biovolume accumulation rate (BVAR) data, are used to infer past limnological conditions and the climatic factors that drove them. Our record reveals that peak interglacial conditions, characterized by highest diatom production, occurred between similar to 124 and 120 ky BP. During that period, the diatom record suggests stable, warm and moist conditions. This climatic optimum is then interrupted by a low amplitude cold event at similar to 120 ky BP. The last part of the interglacial in Lake Baikal, between similar to 120 and similar to 117 ky BP, is marked by colder and probably drier climate. Low-resolution diatom analysis spanning the Kazantsevo was also carried out on another core taken further south at Academician Ridge. Diatom successions at the two sites investigated were remarkably similar suggesting that our sedimentary records are complete and representative for at least a large part of Lake Baikal. (C) 2004 Elsevier B.V. All rights reserved.
WOS关键词CONTINENTAL CLIMATE RESPONSE ; NORTH-ATLANTIC OCEAN ; 983 GARDAR DRIFT ; GEOMAGNETIC PALEOINTENSITY ; ENVIRONMENTAL-CHANGE ; ROCK MAGNETISM ; CENTRAL-EUROPE ; SEDIMENTS ; SUCCESSION ; INSOLATION
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000229512800013
出版者ELSEVIER SCIENCE BV
源URL[http://ir.iggcas.ac.cn/handle/132A11/65432]  
专题中国科学院地质与地球物理研究所
通讯作者Rioual, P
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.UCL, Dept Geog, Environm Change Res Ctr, London WC1H 0AP, England
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Rioual, P,Mackay, AW. A diatom record of centennial resolution for the Kazantsevo Interglacial stage in Lake Baikal (Siberia)[J]. GLOBAL AND PLANETARY CHANGE,2005,46(1-4):199-219.
APA Rioual, P,&Mackay, AW.(2005).A diatom record of centennial resolution for the Kazantsevo Interglacial stage in Lake Baikal (Siberia).GLOBAL AND PLANETARY CHANGE,46(1-4),199-219.
MLA Rioual, P,et al."A diatom record of centennial resolution for the Kazantsevo Interglacial stage in Lake Baikal (Siberia)".GLOBAL AND PLANETARY CHANGE 46.1-4(2005):199-219.

入库方式: OAI收割

来源:地质与地球物理研究所

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