摘要
古岩溶地球化学是古岩溶与地球化学相结合的产物。本文在详细评述了有关古岩溶研究现状（包括概念、研究进展、存在问题等）的基础上，初步提出了古岩溶地球化学的概念与研究方法，认为岩溶岩是其研究的主要对象。通过岩溶岩地球化学信息来解释和恢复古岩溶发育环境是其概念的基本内涵。研究方法是以数理统计为基础，定性与定量相结合，以定量分析、综合解释为主。最后对古岩溶和古岩溶地球化学的研究前景进行了展望。
Paleokarstic is referred to the karst formed in the geologic past It includes the whole process of karst formation and evolution The paleokarsts could be formed not only on the earth surface and at the near surface condition, but also under the burial environment Differing from the modern karst, the paleokarsts were formed under the paleohydrogeological environment, and consequently, the basic objective of paleokarst studies is to restore the formation and evolution of the paleohydrogeological conditions and to ascertain the patterns and processes of the changing paleokarst system The karstic rock system is referrred to those rocks which were formed during the karstification and other related alteration processes The karstic rock system is the only finger print of the paleokarstification as a process and the basis for paleockarst study According to difference in forming mechanism, the karstic rocks can be subdivied into two groups: the karstic sedimentary rocks and the karstic alteration rocks The karstic rocks have not only preserved the macro and micro features related to karstification environment, but also recorded the geochemical information of this environment The paleokarst geochemistry is a subject which combines the paleokarstology and geochemistry It is significantly different from the karst geochemistry The latter puts emphasis on the hydrogeochemical studies, while the former centers the geochemical studies of the karst rocks This paper reviews the current situation of the paleokarst studies, and advanced the concept of paleokarst geochemistry and its research methods It is proposed that the major target of the paleokarst geochemistry is the karstic rocks The major objective of the paleokarst geochemietry is to interpret and restore the environment of paleokarst development The research method of paleokarst geochemistry is to take the statistical analysis as its basis, to combine the quantitative analysis with qualitative, chiefly rely on the quantitative analysis, and to make comprehensive interpretation Finally, the perspectives of the paleokarst geochemistry are also discussed
出处
《高校地质学报》
CAS
CSCD
1999年第2期232-240,共9页
Geological Journal of China Universities
基金
煤炭科学基金
关键词
古岩溶
古岩溶地球化学
岩溶岩
岩溶环境
研究方法
paleokarst, paleokarst geochemistry, karstic rocks, karstic environment, research method
