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塔北井下奥陶系的牙形类序列及其对比

BIOSTRATIGRAPHY AND CORRELATION OF ORDOVICIAN CONODONTS FROM DRILLING SITES OF THE NORTHERN AREA OF TARIM BASIN

【Author in Chinese】 熊剑飞武涛王君奇

【Author】 XIONG Jian-fei;WU Tao;WANG Jun-qi;Research Institute of Exploration and Development,SINOPEC Northwest Company;

【Institution】 中石化西北油田分公司勘探开发研究院

【Abstract in Chinese】 文中记述塔北井下奥陶系的牙形类38属67种,描述其中1新属,4新种,1新亚种。与国内外对比,该区自下而上当前可建立22个牙形类序列(带或组合带)。建议以第5带Pteracontiodus exilis的首现作为塔里木盆地中奥陶统的底界线,从而将鹰山组划分为上、下两组。再结合其它诸如岩石地层、测井地层等综合研究,对塔里木盆地奥陶系现进一步划分为3统7组16个段,以便为研究该地区地层对比和寻找油气资源服务。

【Abstract】 This paper records the Ordovician conodonts of 38 generas and 67 species in the northern area of Tarim Basin;we described 1new genus,4new species and 1new subspecies.Compared with the current research,we set up 22 conodont zones from bottom to top in the research area.We suggest to use the first appearance of the Pteracontiodus exilis in the fifth conodont zone to define the lower-middle Ordovician boundary in Tarim Basin,and divide the Yinshan Formation to two formations.Combined with rock stratigraphy,logging stratigraphy,we divide the Ordovician into 3Systems,7Formations and 16 Sections in Tarim Basin.This work is performed,in order to service the stratigraphic correlation and to search for the oil and gas resources in the Tarim Basin.

  • 【CLC code】Q913.2
  • 【Downloads】99
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