东海内陆架泥区沉积物颜色反射率特征及其近2ka古气候意义

海洋地质与第四纪地质 Pub Date : 2013-02-17 DOI:10.3724/SP.J.1140.2012.06149

Taoyu Xu, Xuefa Shi, Shengfa Liu, S. Qiao, Gang Yang, Guoqing Wang, Kunshan Wang, Xuchen Wang

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引用次数: 3

摘要

以MZ01岩心颜色反射率资料为基础，利用一阶导数和因子分析方法构建了气候代理系统，并利用AMS14C测年资料建立了近2 ka的高分辨率气候序列。公元900年是气候演变过程中的关键转折点。公元900年以后，气候明显变冷，温度波动频率高但幅度小。近2ka来，中国东部气候经历了580AD前的寒冷期、580 ~ 900年的温暖期、900 ~ 1460年的温度波动期和1460 ~ 1880年的寒冷期四个阶段。每个阶段都包括一些次要的区域或全球温度波动。

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The Color Reflectance Features of the Sediments in Mud Area on the Inner Shelf of the East China Sea and its Paleoclimatic Implications for Recent 2 ka

A climatic proxy system is constructed on the basis of the color reflectance data of the core MZ01 using first derivative and factors analysis method,and a high-resolution climatic sequence is established with the support of AMS14C dating data for the past 2 ka.900AD is the key turning-point in the course of climate evolution.Climate became significantly cold with high-frequency but low amplitude temperature fluctuation right after 900AD.In the past 2 ka,the climate in East China has experienced four stages including a cold stage before 580AD,a warm stage between 580 and 900AD,a temperature fluctuation stage between 900 and 1460AD and a cold stage between 1460 and 1880AD.Each stage includes some secondary regional or global temperature fluctuations.

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来源期刊

海洋地质与第四纪地质

CiteScore

0.10

自引率

0.00%

发文量

4176

期刊介绍： Marine Geology and Quaternary Geology launched in 1981 is a bimonthly academic journal sponsored by Qingdao Institute of Marine Geology, China Geological Survey, and published by the Science Press, China.The journal aims to publish original, cutting-edge, and explorative scientific results in the field of marine geology and sea-land Quaternary geology. The journal focus on reporting the latest research achievements supported by National Natural Science Foundation Project, National Key Project and International Cooperation Project, with priority to the results in China seas, global ocean and three poles, and the comparative study results between offshore and land, regional and global scientific issues.