宁蒗油果木地区中二叠世含筑蜓地层及化石带  

Middle permian fusulinid-bearling Strata and Fusulinid Zones or rouguomu area, Linlang, Yunnan

作　　者：周铁明 

机构地区：[1]滇黔桂石油地质科研所

出　　处：《云南地质》1998年第2期175-190,共16页Yunnan Geology

摘　　要：笔者介绍云南宁蒗油果木地区中二叠世含筑蜓地层，地层的岩石学及古生物特征，并就各期沉积环境作一简要分析。对筑蜓类动物群进行详细研究，记述了１３属４８种。依据筑·蜓类的演化，自上而下建立５个筑蜓化石带，分别为：（５）Ｎｅｏｓｃｈｗａｇｅｒｉｎａ延限带；（４）Ｓｃｈｗａｇｅｒｉｎａｐｓｅｕｄｏｃｈｉｈｓｉ－ａｅｎｓｉｓ－Ｓｃｈｗａｇｅｒｉｎａｌｏｎｇｉｐｅｒｔｉｃａ带；（３）Ｎａｎｋｉｎｅｌａｏｒｂｉｃｕｌａｒｉａ－Ｐｉｓｏｌｉｎａｓｕｂｓｐｈａｅｒｉｃａ带；（２）Ｍｉｓ－ｅｌｉｎａｃｌａｕｄｉａｏ带；（１）Ｓｔａｆｆｅｌａｍｏｅｌｅｒａｎａ带，同时讨论筑蜓类动物群的特征，并与国内相关地层进行了对比。AbstractThe fusulinid desoribed in this paper were collected from the middle Permian at Youguomu, Linlang, Yunnan. The strata is meters composed of carbonate rocks. Ita total thtckness is 21178 mainly .In this strate there are three formations including the Liagshan formation with a thickness of 1139m,the Chihsia Formation with a thickness of 6953m and the Maokou Formation with a thickness of 13086m, The strata carry rich and varied fossils including fusulinids, foraminiferas, corals and brachiopods ets. the fusulininds described and illustrated here comprise 49 species (ineluding I new species), belonging to 13 genera. five Fusulinid zone are established in decending order as follows:(5) Neoschwagerina Zone (4)Schwagerina pseudocnihsiaensis-Schwagerina longipertica Zone (3)Nanginella orbicularia-Pisolina subsphaerica Zone (2)Misellina clauaiae Zone (1)Staffella moellerana Zone

关 键 词：含Tin地层 Tin化石带 中二叠世 云南 宁蒗地区 

分 类 号：Q915.646[天文地球—古生物学与地层学]