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杭嘉湖平原全新世有孔虫组合及古地理环境
作者姓名:顾志文
作者单位:华东师范大学地理系
摘    要:杭嘉湖平原地区广泛分布全新世地层。本区钻孔中有孔虫组合绝大多数以广盐的毕克卷转虫(变种)为主,根据有孔虫组合反映的生态环境确定本区全新世各个时期的沉积环境。本区在全新世期间,除个别时段外,大部分时间都处于海陆过渡相的沉积环境。

关 键 词:全新世  有孔虫  古地理环境

HOLOCENE FORAMINIFERA COMPONENT AND PALEOGEOGRAPHIC ENVIRONMENT IN HANGZHOU-JIAXIN-HUZHOU PLAIN
Authors:Gu Zhiwen
Institution:Gu Zhiwen Department of Geography,East China Normal University
Abstract:Holocene strata is widely dist ributed in Hangzhou-Jiaxin-Huzhou Plain. The Ammonia bec- carii vars. living in broad silinity water is dominant in Foraminifera components in this area in addition to less specles of nonnormal marine water. The sedimentary environments in all stages of Holocene can be acception owing to the ecology analysing of Foraminifera compon- ents. The transition facies from land to sed is main environment in most parts of Holocene.
Keywords:Holocene  Foraminifera  Paleogeographic environment
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