生态地层学及其研究进展

生态地层学(Ecostratigraphy)近年来才引起古生态学者和地层学者的注意和重视,它是地层学向纵深发展的一个自然趋向。在介绍与生态地层学有关的概念群落、居群、群落演替和群落取代等基础工,首次提出群落组这一生态地层单位术语,并将它和亚群落带、群落带、群落群作为系统的生态地层单位,并与生物地层和岩石地层单位进行了对比;最后简述了生态地层学研究的意义。

Ecostratigraphy and Its New Advance of study

Based on the systemic introducing of concepts about ecostratigraphy, dumb Community Zone and community formation are put forth first time in this paper and are taken as systemic ccos-tratlgraphy classificstion unit together with subcommunity Zone, community Zone and Community group. By the study of triassic of Hongxin area of West Qinlin, seven community zones, one dumb community zone, two community Formations and one community group have been established. Com- munity evolution of early-middle triassic of Hongxin area has been studied finally in this paper