湖泊碳酸盐在过去环境变化研究中的应用  

Applications of Lacustrine Carbonate in Paleoenvironment Research

作　　者：郭金春[1] 马海州[1] 宋恩玉 陈宁 

机构地区：[1]中国科学院青海盐湖研究所 [2]青海省国土规划院,青海西宁810001 [3]青海省地质矿产开发局,青海西宁810001

出　　处：《盐湖研究》2008年第2期66-72,共7页Journal of Salt Lake Research

基　　金：中国科学院知识创新重要方向项目(KZCX2-SW-118)

摘　　要：国内外的研究成果表明,湖泊沉积碳酸盐矿物及其微量元素、同位素分布特征记录了全球或区域古气候环境演变历史,可以从中提取大量定量化的古气候参数。因此,可以根据湖泊碳酸盐矿物的含量和碳、氧同位素变化等信息推知其形成时期的气候环境,重建古环境,揭示气候环境演变的规律。湖泊碳酸盐是一种研究古环境演化重要的代用指标,在过去气候环境变化研究中有广阔的应用前景。Investigations revealed that the distribution of carbonates in lake sediments as well as trace elements and isotopes predominantly record the evolution of global or regional environments, from which many paleoenvimnmental parameters, such as paleotemperature, paleoprecipitation, paleosalinity, paleozoology, and paleoproductivity can be extracted. According to the contents and C,O isotopes of carbonate rocks, the rules of paleoclimate evolution can be inferred and the paleoenvimnment can be reconstructed. Lacustrine carbonate will have a vast application prospect in the future study on paleoenvimnment evolution.

关 键 词：湖泊碳酸盐 碳 氧同位素 古气候 古湖泊环境 

分 类 号：P597[天文地球—地球化学]