摘要
化学地层学是利用岩层中化学元素及其化合物的演变规律及含量分布特征进行地层的划分和对比,进而推断地层形成时的地球化学环境的一门地层学分支。根据所采用的化学信号,化学地层学可进一步划分为放射性同位素地层学、稳定同位素地层学、分子化学地层学、有机碳和碳酸盐碳化学地层学和元素化学地层学等。
Chemostratigraphy,or chemical stratigraphy is a branch of the stratigraphy.twhich uses the evoluton and concentratron distribution of elements and their compounds in rocks to divide and correlate the strata.and then to deduce the chemical environment in the period of deposition.According to the chemical signals,the chemostratigraphy can be subdivided into radioactive isotopic,stable isotopic,molecular chemical,organic carbon and carbonate carbon,and element chemical stratigraphy.The emergence,development and prospecting of them are mtroduced briefly.
作者
吴智勇
Wu Zhiyong(Jianghun Petroleum Instatute,Jingzhou,434102)
出处
《地层学杂志》
CSCD
北大核心
1999年第3期234-240,共7页
Journal of Stratigraphy
关键词
化学地层学
化学信号
地层划分
对比
同位素地质
chemostratigraphy
chemical signals
stratigraphical division and correlation
