新疆西准噶尔晚泥盆世洪古勒楞组介形类生物地层  

OSTRACODA BIOSTRATIGRAPHY OF THE LATE DEVONIAN HONGGULELENG FORMATION IN THE WESTERN JUNGGAR BASIN, XINJIANG, NW CHINA

作　　者：宋俊俊 范若颖[2] 郭文 纵瑞文 王志宏[3] 罗正江[4,5] 郄文昆 龚一鸣[2] SONG Junjun;FAN Ruoying;GUO Wen;ZONG Ruiwen;WANG Zhihong;LUO Zhengjiang;QIE Wenkun;GONG Yiming(Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment,Chinese Academy of Sciences,Nanjing 210008,China;State Key Laboratory of Biogeology and Environmental Geology,School of Earth Sciences,China University of Geosciences,Wuhan 430074,China;Wuhan Center of China Geological Survey,Karamay 834000,China,Wuhan 430205,China;PetroChina Xinjiang Oilfield Company Research Institute of Experiment and Detection,Karamay 834000 China;The Nanjing Institute of Geology and Palaeontology,CAS-PetroChina Xinjiang Oilfield Company Joint Laboratory of Stratigraphy and Paleontology,Nanjing 210008,China;State Key Laboratory of Palaeobiology and Stratigraphy,Chinese Academy of Sciences,Nanjing 210008,China)

机构地区：[1]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,南京210008 [2]中国地质大学生物地质与环境地质国家重点实验室,地球科学学院,武汉430074 [3]中国地质调查局武汉地质调查中心,武汉430205 [4]中国石油新疆油田分公司实验检测研究院,克拉玛依834000 [5]中国科学院南京地质古生物研究所-中国石油新疆油田公司地层古生物联合实验室,南京210008 [6]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2期145-158,共14页Acta Micropalaeontologica Sinica

基　　金：国家自然科学基金项目(41802002;41802018);中国科学院战略性先导科技专项B类项(XDB26000000)联合资助。

摘　　要：新疆西准噶尔上泥盆统洪古勒楞组产出丰富的介形类化石,本文对乌兰柯顺和布龙果尔两条剖面的洪古勒楞组介形类开展生物地层学研究。首次在活动板块边缘地区建立底栖介形类生物带,为研究区的地层划分和对比提供新的依据。洪古勒楞组下段介形类可划分为两个带和两个亚带:Hollinella valentinae-Samarella coumiacensis带和Microcheilinella hoxtolgaiensis-Praepilatina adamczaki带,后者以Microcheilinella bulongourensis的消失为界可分为上、下亚带。在两个研究剖面上洪古勒楞组底部出现典型的弗拉期介形类分子,由此证明西准噶尔上泥盆统可能存在弗拉阶-法门阶(F-F)界线。Diverse and abundant ostracods were discovered from the Late Devonian Hongguleleng Formation in the western Junggar basin,Xinjiang.This study focused on the biostratigraphy of ostracods from the Hongguleleng Formation at the Wulankeshun and Bulongguoer sections and established the benthic ostracod biozones in the open oceanic island arc for first time.Two ostracod assemblage zones and two subzones were recognized from Lower Member of Hongguleleng Formation,i.e.,Hollinella valentinae-Samarella coumiacensis Zone and Microcheilinella hoxtolgaiensis-Praepilatina adamczaki Zone,the latter can be divided into lower and upper subzones with the disappea-rance of Microcheilinella bulongourensis as the boundary.A few typical Frasnian ostracod species were found in the base of the Hongguleleng Formation,which suggests that the F-F boundary might be present in the Lower Member.

关 键 词：介形类 生物地层 洪古勒楞组 F-F界线 西准噶尔 新疆 

分 类 号：P534.4[天文地球—古生物学与地层学] Q915.2[天文地球—地质学]