|本期目录/Table of Contents|

[1]吴艳宏,李世杰,夏威岚.可可西里苟仁错湖泊沉积物元素 地球化学特征及其环境意义[J].地球科学与环境学报,2004,26(03):64-68.
　WU Yan-hong,LI Shi-jie,XIA Wei-lan.Element geochemistry of lake sediment from Gourenco Lake , Kekexili , Qinghai-Xizang plateau and its significance for climate variation[J].Journal of Earth Sciences and Environment,2004,26(03):64-68.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第26卷
期数:
2004年第03期
页码:
64-68
栏目:
出版日期:
2004-09-20

文章信息/Info

Title:
Element geochemistry of lake sediment from Gourenco Lake , Kekexili , Qinghai-Xizang plateau and its significance for climate variation
作者:
吴艳宏; 李世杰; 夏威岚
中国科学院南京地理与湖泊研究所,江苏南京210008
Author(s):
WU Yan-hong; LI Shi-jie; XIA Wei-lan
Nanjing Institute of Geography and Limnology , Chinese Academy of Sciences , Nanjing 210008 , China
关键词:
元素; CIA; 化学风化; 小冰期; 苟仁错; 可可西里; 青海
Keywords:
element ; CIA; chemical weathering ; Little Ice Age ; Gourenco Lake ; Qinghai
分类号:
P534.63
DOI:
-
文献标志码:
A
摘要:
湖泊沉积物元素地球化学特征及其比值,有效地揭示了湖泊沉积物物源区的化学风化程度,已 成为反映古气候波动的有效指标。根据可可西里苟仁错湖泊沉积物的元素地球化学特征,通过CIA, ICV等元素比值的结果,揭示该地区1400AD以来化学风化作用十分微弱,因此湖泊沉积物元素组成,对 气候变化非常敏感。研究表明1400AD以来该地区气候经历多次冷暖波动,且呈干旱化的趋势,1420 AD左右进入小冰期,其中1480～1520AD最为寒冷,1900AD后干旱化加剧。
Abstract:
Element geochemistry of lake sediment has been widely used to detect climate change because that elements composition and their ratios reflect the weathering degree in the source area .According to the elements composition of lake sediment from Gourenco Lake , Kekexili , Qinghai-Xizang Plateau , CIA, ICV and other element ratios has been studied to understand the weathering sequence of this area since 1400AD.As the result , the weathering is very weak, so that the element composition change is more sensitive to climate change .The climate in this area fluctuated and tended to arid since 1400AD.The Little Ice Age began from 1420AD, and the coldest period was 1480～ 1520AD.

参考文献/References:

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备注/Memo

备注/Memo:
[收稿日期]2003-09-28
[基金项目]国家自然科学基金项目40071001)
[作者简介]吴艳宏1969-),男,江苏靖江人,副研究员,博士,现从事湖泊沉积与全球变化研究工作。
更新日期/Last Update: 2004-09-20