中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
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
DOI10.1029/2001PA000725
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

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。