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| 湖泊碳酸盐记录的古水温定量研究进展 | |
| 引用本文： | 曾承,安芷生,刘卫国,余俊清.湖泊碳酸盐记录的古水温定量研究进展[J].盐湖研究,2008,16(1):42-50,59. |
| 作者姓名： | 曾承 安芷生 刘卫国 余俊清 |
| 作者单位： | 1. 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,陕西,西安,710075;襄樊学院地理系,湖北,襄樊,441053;中国科学院盐湖研究所,青海,西宁,810008;中国科学院研究生院,北京,100039 2. 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,陕西,西安,710075 3. 中国科学院盐湖研究所,青海,西宁,810008 |
| 基金项目： | 国家重点基础研究发展计划(973计划) , 国家自然科学基金 , 中国科学地球环境研究所黄土与第四纪地质国家重点实验室基金 , 湖北省教育厅科研项目 , 湖北省高校教学研究项目 |
| 摘 要： | 湖泊古水温乃至古气温的定量反演,可以促进过去全球变化研究由定性走向定量。目前利用湖泊碳酸盐对湖泊古水温进行重建主要有三种方式,一是运用同位素地质温度计原理,利用水温与湖泊碳酸盐氧同位素值和湖水氧同位素值三者之间的函数关系,对湖泊古水温做定量研究;二是通过测定介壳Mg2+]/Ca2+]进而重建古水温;三是通过测定湖泊流域范围内现代水文气象参数及一些相关的同位素资料直接建立起湖泊自生碳酸盐氧同位素值与温度间的统计模型。各种方法有不同的适用条件和适用范围及其一定的局限性,对此做了归纳和评述。 |
| 关 键 词： | 碳酸盐 古温度 定量研究 |
| 文章编号： | 1008-858X（2008）01-0042-09 |
| 收稿时间： | 2007-06-18 |
| 修稿时间： | 2007年6月18日 |
Quantitative Research Progress on Palaeo-temperature Inferred from Lacustrine Carbonates |
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| ZENG Cheng,AN Zhi-sheng,LIU Wei-guo,YU Jun-qing.Quantitative Research Progress on Palaeo-temperature Inferred from Lacustrine Carbonates[J].Journal of Salt Lake Research,2008,16(1):42-50,59. | |
| Authors: | ZENG Cheng AN Zhi-sheng LIU Wei-guo YU Jun-qing |
| Abstract: | Quantitative inversion of palaeo-temperatures of lake water and atmosphere can promote the past global change research from qualitative to quantitative. Three main methods with lacustrine carbonates have been used to reconstruct the lake water palaeo-temperature at present. First, the technique of isotopic geological thermometer, since being put forward to reconstruct sea-water paleo-temperature, was subsequently introduced into lacustrine carbonate sediments for constructing lake-water based upon the function relationship between lake-water temperature and the oxygen isotopic compositions of lacustrine carbonate and lake-water. Second, paleo-temperature of the lake-water can be reconstructed by determining Mg/Ca values of the lacustrine ostracede shells. And third,paleo-temperature of the lake-water can be reconstructed based upon the statistic model between the oxygen isotopic composition of lacustrine carbonate and the lake-water temperature by testing the modem hydmgeological parameters and some relevant isotopic data of the lake basin. Each method has its own applicable condition, scope and limitation, and all of these, points am reviewed and discussed in this paper. |
| Keywords: | Lacustrine carbonate Palaeo-tempemture Quantitative research |
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