古代生物礁研究中的若干问题,兼论我国西南地区二叠系生物礁的类型

SOME PROBLEMS ON THE RESEARCH OF ANCIENT ORGANIC REEFS, WITH REFERENCE TO THE TYPES OF THE PERMIAN REEFS IN SOUTHWESTERN CHINA

范嘉松

Fan Jiasong

本文根据我国生物礁的研究现状和争论焦点,在讨论生物礁术语、分类的基础上提出岩隆礁或碳酸盐岩隆礁一词,以统一繁多纷乱的各种术语,进而将其分为:(1)生物岩隆礁;(2)障积岩隆礁;(3)灰泥岩隆礁三大类。同时论述了生物礁的发育过程和造礁作用的旋回性。结合我国西南地区二叠系生物礁的不同典型,作了进一步的阐述、概括和归类。

In this paper following topics will be discussed:1. Definition of organic reefs and the associated terms;2. Classification of reefs and their verious schems;3. Stages of reef growth;4. Cyclothem of forming various reefs during the Phanerozoic;5. Diagenetic processes of ancient reefs and their potentiality of reservoir for oil and gas. Then the paper briefly descripted three types of the Permiam reefs developed in southwestern China. These are (a) Jintianba reefs which are regarded as carbonate platform margin-reefs;(b)Baffling mounds or buildups which are irregularly spread on carbonate platform of east Sichuan and west Hubei;and (c)Sponge-algal reefs which are well developed in east Yunnan, southwestern Guizhou and northwestern Guangxi.

10.11743/ogg19880106