新疆却尔却克剖面白云岗组牙形石  

Conodonts from Baiyungang Formation in Queerqueke Section in Southern Kuruktag Area,Xinjiang

作　　者：郭伟[1] 何顺利[1] 赵宗举[2] 谭泽金[3] 

机构地区：[1]中国石油大学,石油天然气工程学院,北京102249 [2]中国石油勘探开发研究院,北京100083 [3]中国石油塔里木油田分公司,新疆库尔勒841000

出　　处：《新疆石油地质》2009年第2期188-193,共6页Xinjiang Petroleum Geology

摘　　要：描述新疆库鲁克塔格地区南部却尔却克山白云岗组的牙形石,计14属19种和3未定种,分为6个牙形石带,从下至上依次为:Proconodontus posterocostatus带、Proconodontus muelleri带、Eoconodontus notchpeakensis带、Cordylodus proavus带、Cordylodus lindstromi带和Cordylodus angulatus带。根据牙形石带,初步划分了寒武系与奥陶系界线。This paper presents the eonodonts collected from Baiyungang formation in Queerclueke mountain, southern Kuruktag area in Xinjiang, consisting of 19 species and 3 undetermined ones, belonging to 14 genuses. They are elassified into 6 eonodont zones from bottom to top, such as Proconodontus posterocostatus zone, Proconodontus muelleri zone, Eoconodontus notchpeakensis zone, Cordylodus proavus zone, Cordylodus lindstromi zone and Cordylodus angulatus zone. Based on these eonodont zones, the Cambrian-Ordovieian boundary in this area is preliminarily determined.

关 键 词：新疆 库鲁克塔格 牙形石 晚寒武世 早奥陶世 

分 类 号：Q913[天文地球—古生物学与地层学]