Stacked 2.6-Ma grain size record from the Chinese loess based on five sections and correlation with the deep-sea delta O-18 record
文献类型:期刊论文
作者 | Ding, ZL; Derbyshire, E; Yang, SL; Yu, ZW; Xiong, SF; Liu, TS |
刊名 | PALEOCEANOGRAPHY
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出版日期 | 2002-07-01 |
卷号 | 17期号:3 |
关键词 | Chinese loess grain size orbital timescale continental climate record land-sea climate correlation |
ISSN号 | 0883-8305 |
DOI | 10.1029/2001PA000725 |
文献子类 | Article |
英文摘要 | [1] This study aims to establish a stacked climate record of the Quaternary period from the Chinese loess sequence and to address the forcing mechanisms for the regional climate history of the Loess Plateau by correlating the stacked record with a composite delta(18)O record in deep-sea sediments. A total of 18,352 samples were obtained from five loess sections, located at Baoji, Lingtai, Jingchuan, Puxian, and Pingliang in the southern and middle Loess Plateau. These yielded high-resolution grain size records. Between-section correlation of these shows that although small depositional hiatuses are present in places within a single section, most parts of the sections display near-continuous dust deposition throughout the Quaternary. The grain size records were tuned simultaneously to the theoretical variations in obliquity and precession of the Earth's orbit. The grain size records plotted on their orbital timescales were then averaged to form a stacked loess grain size time series, termed the "Chiloparts'' record. This resolves most of the orbital timescale paleoclimate events buried in the loess-soil sequences of the southern and middle Loess Plateau and can be used as a regional archive of the Pleistocene climate history in the Loess Plateau. Comparison of the "Chiloparts'' record with a composite marine delta(18)O record shows that for the past 1.8 Ma, the loess-paleosol record can be correlated almost cycle by cycle with the marine record. Several discrepancies in the climatic events between the two records have also been identified, implying that regional forcing mechanisms may have played a part in the climatic evolution of the Chinese Loess Plateau. |
WOS关键词 | MAGNETIC-SUSCEPTIBILITY SIGNAL ; NORTH-CENTRAL CHINA ; LAST 130,000 YEARS ; ASTRONOMICAL CALIBRATION ; MONSOON VARIATIONS ; CLIMATE-CHANGE ; EOLIAN LOESS ; TIME-SCALE ; PLATEAU ; DEPOSITS |
WOS研究方向 | Geology ; Oceanography ; Paleontology |
语种 | 英语 |
WOS记录号 | WOS:000179015500011 |
出版者 | AMER GEOPHYSICAL UNION |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/77591] ![]() |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Ding, ZL |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ London Royal Holloway & Bedford New Coll, Dept Geog, Quaternary Res Ctr, Egham TW20 0EX, Surrey, England 3.China Univ Min & Technol, Dept Resource Exploitat & Engn, Beijing 100083, Peoples R China |
推荐引用方式 GB/T 7714 | Ding, ZL,Derbyshire, E,Yang, SL,et al. Stacked 2.6-Ma grain size record from the Chinese loess based on five sections and correlation with the deep-sea delta O-18 record[J]. PALEOCEANOGRAPHY,2002,17(3). |
APA | Ding, ZL,Derbyshire, E,Yang, SL,Yu, ZW,Xiong, SF,&Liu, TS.(2002).Stacked 2.6-Ma grain size record from the Chinese loess based on five sections and correlation with the deep-sea delta O-18 record.PALEOCEANOGRAPHY,17(3). |
MLA | Ding, ZL,et al."Stacked 2.6-Ma grain size record from the Chinese loess based on five sections and correlation with the deep-sea delta O-18 record".PALEOCEANOGRAPHY 17.3(2002). |
入库方式: OAI收割
来源:地质与地球物理研究所
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