地质科技情报2011，Vol.30Issue(6)：13-17,5.
甘肃北山地区下石炭统红柳园组四射珊瑚动物群及其地质意义
Early Carboniferous Rugose Coral Fauna Found in Hongliuyuan Formatioin in Beishan Area and Their Geological Significances
摘要
Abstract
Some Early Carboniferous rugose coral are found in Hongliuyuan section in Beishan area. They are 12 genera and 17 species of solitary coral, and 5 genera and 7 species of compound coral. They are can be divided into two biological assemblages,upwardely, Yuanophyllum-Gangamophyllum and Siphonoden-dron-Thysanophyllum. The geological time should be the Datangian. The correlation of the rugose coral fauna with that from Beishan area and South China and Europe, and with that from different districts inside the area suggests that coral fauna from Heiyingshan area,belonging to the Kazakhstan plate in Early Paleozoic, and that from Hongliuyuan area, belonging to Tarim plate, are similar,for they have the characteristic of the transitional type of the Tethyan faunal province and northern faunal province, mostly belonging to Tethyan faunal province. This implies that the biobarrier was not significant between Kazakhstan plate and Tarim plate before Early Carboniferous , which means that the two plates were put together in Early Carboniferous, Tethys Ocean communicated with the sea of Beishan area and Paleo-Asian Ocean might have been closed in Beishan area.关键词
四射珊瑚/古环境/古地理/早石炭世/北山地区Key words
rugose coral/palaeoenvironment/palaeobiogeography/Early Carboniferous/Beishan area分类
生物学引用本文复制引用
段先锋,张雄华,卜建军..甘肃北山地区下石炭统红柳园组四射珊瑚动物群及其地质意义[J].地质科技情报,2011,30(6):13-17,5.基金项目
中国地质调查局国土资源大调查项目"西北地区中小盆地群油气资源远景调查"(1212010733506) （1212010733506）
