新疆塔河油田中—上奥陶统牙形刺的再研究  

RESTUDY OF THE MIDDLE TO UPPER ORDOVICIAN CONODONTS OF WELL A IN THE TAHE OILFIELD, XINJIANG

作　　者：胡梅[1,2] 陈中阳 成俊峰[1,2] HU Mei;CHEN Zhongyang;CHENG Junfeng(Experimental center SINOPEC Northwest Company,Uruniqi 830011,China;Key Laboratory for Enhanced Oil Recovery in Carven-type Reservoirs,SINOPEC,Urumqi830011,China;State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Nanjing 210008,China)

机构地区：[1]中国石油化工股份有限公司西北油田分公司实验中心,乌鲁木齐830011 [2]中国石油化工集团缝洞型油藏提高采收率重点实验室,乌鲁木齐830011 [3]中国科学院南京地质古生物研究所和生物演化与环境卓越创新中心,现代古生物学和地层学国家重点实验室,南京210008

出　　处：《微体古生物学报》2020年第4期303-316,共14页Acta Micropalaeontologica Sinica

基　　金：中国石油化工股份有限公司西北油田分公司(KJ202004)资助;IGCP653项目“奥陶纪生物大辐射的启动过程”的阶段成果。

摘　　要：通过对塔河油田A井中上奥陶统牙形刺的再研究,从一间房组(钻取部分)中上部至桑塔木组下部识别出Pygodus anserinus,Belodina confluens和Yaoxianognathus yaoxianensis等3个确定的生物带,以及Baltoniodus variabilis和Baltoniodus alobatus等2个存疑的生物带。进而将一间房组(钻取部分)中上部归为中奥陶统达瑞威尔阶上部,恰尔巴克组归为上奥陶统桑比阶中下部,良里塔格组归为上奥陶统桑比阶中上部至凯迪阶下部,桑塔木组底部归为凯迪阶中部。A井的牙形刺生物带序列可以与塔里木盆地的区域标准牙形刺生物带进行对比。Three conodont biozones,including the Pygodus anserinus biozone,the Belodina confluens biozone and the Yaoxianognathus yaoxianensis biozone,and two possible conodont biozones,such as the Baltoniodus variabilis biozone and the Baltoniodus alobatus biozone,were recognized through the restudy of the Middle to Upper Ordovician conodonts from the upper Yijianfang Formation to the lower Sangtamu Formation of Well A in the Tahe Oilfield,Xinjiang.Based on the analysis of the conodont biostratigraphy,the Yijianfang Formation corresponds to the upper Darriwilian,the Qiaerbake Formation to the lower to middle Sandbian,the Lianglitage Formation to the middle to upper Sandbian to lower Katian,and the Sangtamu Formation to the middle Katian.The conodont biostratigraphy of Well A can be correlated with local standard conodont biozonation of the Tarim Basin.

关 键 词：牙形刺 生物地层 奥陶系 塔河油田 新疆 

分 类 号：Q913.85[天文地球—古生物学与地层学] P534.42[生物学—古生物学]