摘要
滇东华宁盘溪火车站以北的金山—大石山地区发育中、晚泥盆世的丘状珊瑚礁。以Ａｌｖｅｏｌｉｔｅｓ和Ｔｈａｍｎｏｐｏｒａ为代表的床板珊瑚为造礁生物。纵剖面上岩相变化的记录清楚地表明，该礁体经历了定殖、繁殖和衰亡三个阶段。
A Middle-Upper Devonian coral reef assemblage was studied in Jinshan Dashishan region near the station of Panxi, Huaning of Eastern Yunnan Province. Tabulate corals with massive and twig compounds are the most important reef-building organism, mainly including Alveolites and Thamnopora. In the reef district four microfacies of coral types have be recognized.The spacial distribution of reef-building organism and microfacies types show that the studied reef went through three evolutionary stages(stabilization, diversification and dead phase). The shallowing of the sea water and its salting led to the reef died.
基金
国家教委留学基金
关键词
珊瑚礁
床板珊瑚
古植物
泥盆纪
coral reef, tabulate coral, Middle Upper Devonian, Huaning, Eastern Yunnan
