中国陆相源岩显微组分的分类及其岩石学特征  

A PETROGRAPHIC CLASSIFICATION OF MACERALS IN TERRESTRIAL HYDROCARBON SOURCE ROCKS IN CHINA AND THEIR ORGANIC PETROLOGICAL CHARACTERISTICS

作　　者：肖贤明[1] 金奎励[2] 

机构地区：[1]中国科学院地球化学所广州分部 [2]中国矿业大学北京研究生部

出　　处：《沉积学报》1990年第3期22-34,共13页Acta Sedimentologica Sinica

摘　　要：本文通过对中国6个主要油田及15个煤田共三百多块陆相源岩所作的详细有机岩石学研究,提出了以全岩与干酪根为基础的分散有机质分类方案,系统总结了显微组分光性、成因及分布规律,鉴定出了我国陆相源岩中三种新显微组分。此分类不仅适用于低成熟源岩,而且还可用来划分过成熟干酪根的显微组分。Having investigated the detailed organic petrological characteristics of more than 300 hydrocarbon source rocks, including oil source rocks, coals and oil shales, sampled from six typical terrestrial oilfields and 15 coalfields in China, the authors sum up the optical properities of the macerals occurring in these source rocks, and investigate their distribution and origins. Three new macerals are recognized which are called as telalginite C, telalginite D and zoo-soft-organisminite.On the base of this, a petrographic classification of macerals in the terrestrial hydrocarbon source rocks of China has been suggested. This system not only displays the organic petroliogical characteristics of our terre strial source orcks sa well as absorbes the strong points of the influenced classifications in the world, but also pays much attention to the following problems at which the organic petrologists haye been working since the past ten years: 1. This system is based on the research of the polished blacks of whole rocks and the thin- sections of Kerogen, and unifies the two classifications and applies the coal petrological maceral nomenclature. 2.The amorphour kerogen is subdivided as detailed as possible in order to make the widest possible combination of the three factors of of gins, optical properties and hydrocarbon-generationg potential of it, and to corresponed it with shaped organic matter in their precursors. 3.The influence of mature level on optical properties of organic matter is stressed in the classification, and an ther classification system for overmature source orcks is presented, and a great effort is made to corrspond it with the maceral in low mature stage accouding to the thermal evolution characters of macerals. Stage accouding as autoanisotropinite, alloanistropinite, micrinite A and micrinte B are suggested to discrible the secondary macerals in overmature stage formed by differeht kinds of hydrogen-rich macerals during theirthermal evolution.

关 键 词：源岩 显微组分 分类 岩石学 全岩 

分 类 号：P618.130.4[天文地球—矿床学]