岩溶石笋的古环境研究进展  

PROGRESS IN RESEARCH ON THE PALEO-ENVIRONMENT OF KARST STALAGMITE

作　　者：张兆峰[1] 彭子成[1] 贺剑峰 夏小平 蔡演军[2] 刘卫国[2] 

机构地区：[1]科技大学地球与空间科学系 [2]中国科学院地球环境研究所,陕西西安710075

出　　处：《地质地球化学》2002年第1期78-84,共7页Geology-Geochemistry

基　　金：中科院重大研究项目 (KZ95 1 A1 40 2 );中科院创新工程重大项目 (KZCX1 Y 0 5 );国家重点基础研究发展规划项目(G19990 43 40 0 );国家自然基金项目(4 9973 0 11);中国科技大学资源与环境研究基地项目

摘　　要：全球变化研究的热点问题是获得十年到百年甚至年月分辨的气候变化规律。岩溶石笋因其诸多优点 ,将在古环境研究中发挥越来越重要的作用。本文从当前研究的现状出发 ,在石笋微层年层对比、微层形成机制、稳定同位素记录、灰度、生长率、微量元素以及紫外激光诱发荧光等方面的研究进行了综述 ,并结合自身研究成果 。One of the hot points of current research on global environmental change is to understand the trends of climate change on the scale of hundreds, tens or even one year. As a useful paleo environmental carrier, karst stalagmite has always been emphasized because of the following advantages: it is of wide distribution, bears continuous and completed records, is sensitive to local and global climate change, and it can be very precisely timed using the TIMS U series method. This paper briefly reviews several main proxies of karst stalagmite, such as micro layer, stable isotopes, gray level, growth rate, trace element and fluorescence induced by ultraviolet laser, and then summarizes the progress in our own research. According to the growth rate of stalagmite in the Qixing Cave of Guizhou Province, it is suggested that Guizhou Province may be 'wet' during the MIS 3 period.

关 键 词：岩溶石笋 生长率 古环境 稳定同位素 灰度 微层形成机制 微量元素 

分 类 号：P642.25[天文地球—工程地质学]