柴达木盆地西部红柳泉地区晚侏罗世介形类动物群及其古环境意义  

LATE JURASSIC OSTRACOD FAUNA FROM THE HONGLIUQUAN AREA OF THE TSAIDAM BASIN AND ITS PALAEOENVIRONMENTAL SIGNIFICANCE

作　　者：杨平[1] 葛子琛 曾妮 王亚琼[2] YANG Ping;GE Zichen;ZENG Ni;WANG Yaqiong(Research Institute of Petroleum Exploration and Development,Petro China Qinghai Oilfield Company,Dunhuang 736202,China;State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences,Nanjing 210008,China;Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]中国石油青海油田公司勘探开发研究院,敦煌736202 [2]现代古生物学和地层学国家重点实验室,中国科学院南京地质古生物研究所,南京210008 [3]成都理工大学沉积地质研究院,成都610059

出　　处：《微体古生物学报》2022年第1期57-69,共13页Acta Micropalaeontologica Sinica

基　　金：中国科学院战略先导科技专项B(XDB26000000);中国科学院青年促进会项目(2019309)共同资助;国家自然科学基金(41688103)。

摘　　要：在柴达木盆地红柳泉地区红探2井红水沟组中识别出介形类化石3属9种(含2个未定种):Cetacella qaidamensis Li et Yang, 1983、Djungarica tracta Li et Yang, 1983、Djungarica sp.、Alicenula incurva (Bate, 1967)、?A.longicylindrica (Qi, 1985)、A. paramagna (Li et Yang, 1983)、A. maanshanensis (Hou et al., 2002)、A. jinhuaensis (Li,1984)、Alicenula sp.。通过介形类化石生物地层对比,明确红水沟组的沉积时代为晚侏罗世。红水沟组介形类动物群指示晚侏罗世柴达木地区发育淡水湖泊、河流以及季节性的小水塘。Nine ostracod species belonging to three genera have been recovered from the Hongshuigou Formation of Well HT-2 in Hongliuquan area of the Tsaidam Basin: Cetacella qaidamensis Li et Yang, 1983, Djungarica tracta Li et Yang, 1983, Djungarica sp., Alicenula incurva(Bate, 1967), ?A. longicylindrica(Qi, 1985), A. paramagna(Li et Yang, 1983), A. maanshanensis(Hou et al., 2002), A. jinhuaensis(Li, 1984), and Alicenula sp. The ostracod biostratigraphic correlations suggest that the age of the Hongshuigou Formation is the Upper Jurassic. The ostracod fauna from the Hongshuigou Formation indicates a shallow lacustrine to fluvial environment and potentially including small ephemeral water body environment in Tsaidam area during the Upper Jurassic.

关 键 词：Cetacella Alicenula Darwinulocopine 淡水 河湖相 红水沟组 红探2井 

分 类 号：Q915[天文地球—古生物学与地层学]