| 内蒙岱海湖岩芯碳酸盐含量变化与气候环境演化 |
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| 引用本文： | 曹建廷,徐爱霞.内蒙岱海湖岩芯碳酸盐含量变化与气候环境演化[J].海洋湖沼通报,1999(4):21-26. |
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| 作者姓名： | 曹建廷 徐爱霞 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所!南京210008，山东水利专科学校，泰安!271000，中国科学院南京地理与湖泊研究所!南京210008，中国科学院南京地理与湖泊研究所!南京210008 |
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| 基金项目： | 国家自然科学基金!49702028 |
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| 摘 要： | 内蒙岱海是位于东南季风区的西北边缘的内陆封闭湖泊，对气候变化十分敏感。本文根据对岱海湖泊岩芯的碳酸盐含量分析，结合湖泊沉积岩性特征、介形类化石以及其年代学研究，初步讨论了岱海距今近千年的气候环境演化过程，结果表明：９３０ａＢＰ—６７０ａＢＰ气候以温湿为主，６７０ａＢＰ—５４０ａＢＰ，气候以冷偏湿为主；５４０ａＢｐ—４９０ａＢ．Ｐ．湖泊急剧退缩，以冷偏干气候为主；４９０ａＢｐ—２７０ａＢＰ以凉干气候为主；２７０ａＢＰ－１５０温干气候；１５０年以来，湖区有效降水有所增加的温偏湿气候为主。
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| 关 键 词： | 岱海 碳酸盐 环境演化 |
CARBONATE CONTENT RECORD OF CLIMATE AND ENVIRONMENT CHANGES FROM LAUSTRINE CORE IN DAIHAI LAKE, INNER MONGOLIA |
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| CAO Jian-ting , XU Ai-xia, WANG Su-min, SHEN Ji.CARBONATE CONTENT RECORD OF CLIMATE AND ENVIRONMENT CHANGES FROM LAUSTRINE CORE IN DAIHAI LAKE, INNER MONGOLIA[J].Transaction of Oceanology and Limnology,1999(4):21-26. |
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| Authors: | CAO Jian-ting XU Ai-xia WANG Su-min SHEN Ji |
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| Abstract: | Daihai Lake, with a closed drainage basin, is very sensitive to the paleoclimate hange. The paleoclimatic change will bring about changes in lake level, salinity of lake water ionic composition, and Carbonate content of the sediments, which may be recorded ill the lake sediments. According to the vertical distribution of carbonate content and the characteristics of lithology in Daihai Lake, the paleoclimatic evolution of this region over the past thousand years has been reconstructed. |
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| Keywords: | Daihai Lake carbonate content paleoclimate |
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