收稿日期: 2000-08-22
修回日期: 2000-11-01
网络出版日期: 2001-06-01
基金资助
国家自然科学基金项目“大别山超高压变质岩体矿物的钾钙同位素体系研究”(编号:49973011);国家重点基础研究发展规划项目“季风环境的自然变化规律和北方干旱化的历史过程研究”(编号:G1999043401);中科院知识创新工程重大项目“南海珊瑚气候环境信息的提取及其量化研究”(编号:KZCX1-Y-05)联合资助。
PROGESS IN THE DATING AND TRACING RESEARCH BY USING K-Ca ISOTOPIC SYSTEM
Received date: 2000-08-22
Revised date: 2000-11-01
Online published: 2001-06-01
彭子成,王俊新,刘桂建,张兆峰,贺剑峰 . 钾、钙同位素体系定年和示踪的研究进展[J]. 地球科学进展, 2001 , 16(3) : 367 -373 . DOI: 10.11867/j.issn.1001-8166.2001.03.0367
The separation and purification of the K and Ca elements in the mineral and the rocks, dating and tracing marine igneous rocks, continental and lunar granites, carbonates, chemical and clastic sediments by using K-Ca system, were described and discussed in this paper. In comparison with the Rb-Sr, Sm-Nd and U-Th-Pb system, the K-Ca isotopic one has its own geochemical behaviors because K and Ca elements belong to the major ones. As mentioned in the text, the different characteristics between the major and trace element systems were shown in the geological process of petrogenesis, matter origin, plate collision, crust-mantle interaction and subduction/turn back,etc. The K-Ca system has already supplied a series of new information and inspiration. With the technological development, the K-Ca system has becomes a new approach to study chemical geodynamics.
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