摘要
本文在系统岩石学、古生物学和地球化学研究的基础上,论述了贵州中三叠世岩隆的沉积发展史。指出该岩隆在安尼期为生物礁的雏形,并形成陡的前缘斜坡;拉丁期为浅滩沉积,形成缓的前缘斜坡;拉丁晚期岩隆消失。文中所提出的综合元素地球化学相的划分和分析方法,特别适用于对环境的综合评价。
A study on petrology, palaeontology and geochemistry of the Middle Triassic buildup in Guizhou, the sedimentary nature of which has been in argument for years, indicates that in the Anisian this buildup band had a tendency to form a reef, which resulted in its embryonic form, and a steep slope was formed in front of it. However, in the Ladinian it had passive bank deposits and thus there was a gentle slope in front of it. Moreover, the method to establish and divide the comprehensive element geochemical facies is applied in this paper, which is very useful in the comprehensive analysis of palaeoenvironments.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1992年第3期319-327,共9页
Earth Science-Journal of China University of Geosciences
基金
国家教委博士点基金
关键词
中三叠纪
岩隆
地球化学相
贵州
Middle Triassic, buildup, geochemical facies, Guizhou Province.
