新疆石油地质 ›› 1994, Vol. 15 ›› Issue (1): 37-48.

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克拉玛依鲎虫化石群的发现及其地质意义

雍天寿, 魏景明, 杨瑞麒, 李晓男   

  1. 新疆石油管理局勘探开发研究院 克拉玛依 834000
  • 收稿日期:1993-07-06 出版日期:1994-03-01 发布日期:2020-08-06
  • 作者简介:高级工程师 石油地质勘探

DISCOVERY AND GEOLOGIC SIGNIFICANCE OF KARAMAY APUS FOSSIL FAUNA

Yong Tianshou, Wei Jingming, Yang Ruigi, Li Xiaonan   

  1. Research lnstitute of Exploration & Development, Xinjiang Petroleum Administration Bureau, Karamay 834000
  • Received:1993-07-06 Online:1994-03-01 Published:2020-08-06
  • About author:Senior Engineer, Petroleum Geology Exploration.

摘要: 1964年首次在新疆克拉玛依地区地面上的上克拉玛依组及白碱滩组中发现了大量的鲎虫化石。根据与其共生的鱼化石、昆虫化石及植物化石分别定名为克拉玛依鲎虫化石组合、和白碱滩组鲎虫化局组合。前者的时代属于中三叠世晚期,后者属晚三叠世早期。这些鲎虫化石群又相继在准噶尔盆地南缘、塔里木盆地、吐鲁番盆地、鄂尔多斯盆地被发现,从而为上述地区三叠纪地层的对比与划分提供了新的线索.根据鲎虫化石产出层位的沉积岩相特征判断,鲎虫属于淡水—微咸水水生生物,生活在清洁、透明、温暖、安静、有机质丰富的浅水区,可作为浅湖相、充水沼泽相、牛辄湖相、河流三角洲相的指相化石。

关键词: 三叠纪, 克拉玛依组, 白碱滩组, 鲎虫化石, 指相化石

Abstract: A large number of Apus fossils were discovered in Upper Karamay Formation and Baijiantan Formation (outcrop) in Kararnay area. Xinjiang in 1964. According to symbiotic fish fossil, insect fossil and plant fossil, they were separately nominated Kararnay (Late Middle Triassic) and Baijiantan (F.arly Late Triassic) Apus fossil assem­blages. These fossil assemblages were discovered in successions in south πiargin of Junttgar Basin, Tarim Basin, Tur pan Basin and Ordos Basin, and offered a new clue to correlation and classification of the Triassic. Inferred from sedimen­tary lithofacies characteristics. the Apus could be a type of hydrobios in fresh water-brackish water living in clean, transparent, warm and still shallow water area enriched with organic matters, which can be used as facies f咽sils of shallow lake.water-filled swamp.oxbow lake and river-delta environments.

Key words: Triassic, Kararnay Formation, Baijiantan Formation, Apus fossil, Facies fossil