摘要
钙质海绵是我国南方二叠纪生物礁的主要造礁生物之一,由不同类型钙质海绵构成的化石群落记录了礁体形成的完整过程。广西隆林科风的化石群落是我国南方二叠纪生物礁内保存完好的群落之一,本文以此为研究对象,初步确定了科风生物礁的性质及其化石群落的组成;讨论了造礁海绵的古生态,并与毗邻祥播生物礁的造礁生物进行了对比;总结了科风生物礁发生、发展、消亡的基本特征。
Four fossil reef communities can be differentiated from Kefeng reef,Longlin region,Guangxi,in which three communities belong to Middle Permian (from Misellina zone toNeoschwagerina zone),and one belongs to Late Permian (Palaeofusulina zone).Many ofthe 25 genera and 38 species found here are restricted to Sphinetozoa,Inozoa and Scle-rospongiae.Baesd on the general characteristics of the communities,the sequence of Ke-feng reef can be divided into four distinct reef-cycles.And these cycles are correspongdingto the flourish of the reef-building sponge communities.Some statistical data suggest that the size and form of calcisponges can indicate dif-ferent environment.In general,those sponges lived in a higher-energy water are alwayssmaller in their form and denser in distribution.The binding organisms play an importantrole in reef development.They are very abundant in quantity and important to the build-ing up a typical reef.
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
1990年第4期427-435,共9页
Oil & Gas Geology
基金
国家青年自然科学奖励基金
