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化石群落演替与海平面变化──以塔里木为例

引用本文：郭宪璞.1994.化石群落演替与海平面变化──以塔里木为例[J].地球学报,15(3,4):235-245.

DOI：

摘要点击次数: 2006

全文下载次数: 1944

作者	单位
郭宪璞	中国地质科学院地质研究所

中文摘要:有孔虫化石群落在时间上的演替是有规律可循的（以塔里木为例），最先出现的是以机会种为主的群落，继之是以平衡种为王的群落，最后是以终极种为主的群落。３种不同组份的群落构成一个完整的群落演替序列，两个序列之间为生物空白区。群落演替的机制取决于生物间的竞争。群落演替序列与海平面变化密切相关。

中文关键词:化石群落，演替，有孔虫，海平面变化

Succesion of Fossil Communitirs and Relationship with Change of Sea Level

Abstract:Based on characteristics of fossil foraminifera from Cretaceous to Paleocene in the Western Tarim Basin. succession of fossil communities in time proceeds along three stages:1.opportunistic species community 2.equilibrium species community 3.ultimate species community In this paper,the concept about ultimate species is first time proposed.The elements andwall types of foraminiferal community in each stage of succession are quite different.The threestages in time form a succession cycle. There is a non- organism interval between two successioncycles.It is recognized that the mechanism of community succession depends mainly oncompetition among organisms. The succession cycles are considered to be directly related tochanges of sea level.

keywords:fossil community succession foraminifera change of sea level,

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