论文详情

用MnO/TiO指标探讨安徽巢湖二叠系海陆相的变化

石油实验地质

1992年 14卷第2期

阅读：119

Title

ON MARINE TO NON-MARINE FACIES TRANSFORMATION OF THE PERMIAN SEDIMENTATION IN THE CHAOHU LAKE, ANHUI PROVINCE, WITH THE APPLICATION OF MnO/TiO INDEX

作者

王子玉

Authors

Wang Ziyu

单位

中国科学院南京地质古生物研究所 210008

Organization

Nanjing Institute of Geology and Palaeontology, Academia Sinica of China

摘要

本文在系统地化学分析资料基础上,应用MnO/TiO2比值,对安徽巢湖二叠系海陆相的变化和主要的沉积相类型进行了研究。所得结论与C/S比值、δ13C以及古生物和岩石地层沉积环境的综合分析结论是基本吻合的。从而证明了MnO/TiO2比值可以作为辨别海洋沉积物沉积环境的一项有效的地球化学标志,而用其来探讨地层海陆相的变化是可行的。

Abstract

Based on the data of systematic chemical analyses, the transformation between the non-marine facies in the Permian system of the Chaohu Lake, Anhui Province are discussed paper, with the application of MnO/TiO2 ratio. The results obtained are basically consistent those from C/S ratio, 13C,as well as the synthetic analyses of palaeontology and the sedimentary vironmcnt of petrostratigraphy. Therefore, it is in evidence that MnO/TiO2 can be regarded as fective geochemical index for defining the depositional cnvironment of marine sediments and is available for studying on the changes between marine and non-marine facies.

关键词：

二叠系; 地球化学指标; 沉积环境; 沉积相;

基金项目

国家自然科学基金一部分;中国科学院南京地质古生物研究所所长基金联合资助项目

DOI

https://doi.org/10.11781/sysydz199202195