粘土矿物在过去环境变化研究中的应用  

Application of Clay Minerals in Paleoenviroment Research

作　　者：隆浩[1] 王晨华[2] 刘勇平 马海州[1] 

机构地区：[1]中国科学院青海盐湖研究所,青海西宁810008 [2]兰州大学资源环境学院,甘肃兰州730000 [3]青海省第一矿产地质大队,青海平安810600

出　　处：《盐湖研究》2007年第2期21-25,29,共6页Journal of Salt Lake Research

摘　　要：粘土矿物是一种广泛分布于地表的沉积物,其组合及含量的变化记录了源区过去气候环境变化的信息。因此,可以根据粘土矿物的含量和组合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。粘土矿物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。Clay mineral recording plentiful environmental information of source areas during the course of its formation is one of the deposits distributed extensively on the surface of the earth. According to the contents and assembiling changes of clay minerals, the rules of palcoclimate evolution can be inferred, and the paleoenvironment can be reconstructed. So, clay mineral is one of the important proxy indexes for studying the paleoenvironment evolution, the same as loess, ice core and tree ring, In arid region where there are no other proxy indexes such as loess, ice core, tree ring and so on , clay minerals may be the most important proxy to be used to reconstruct palcoclimate. Thus, it can be seen that clay minerals will have a vast application prospect in the future study on paleoenvironment evolution.

关 键 词：粘土矿物 古环境 代用指标 

分 类 号：P59[天文地球—地球化学]