泰国-老挝黎府构造带晚泥盆世-早石炭世放射虫动物群及其地质意义  

LATE DEVONIAN—EARLY CARBONIFEROUS RADIOLARIAN FAUNA FROM LOEI FOLD BELT IN THAILAND AND LAOS AND ITS GEOLOGICAL IMPLICATIONS

作　　者：杨宗璘 张小哎 孙慧 冯庆来[1,2] YANG Zonglin;SENEBOUTTALATH Vongpaseuth;SUN Hui;FENG Qinglai(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China;Faculty of Earth Science,China University of Geoscience,Wuhan 430074,China)

机构地区：[1]中国地质大学地质过程与矿产资源国家重点实验室,武汉430074 [2]中国地质大学地球科学学院,武汉430074

出　　处：《微体古生物学报》2019年第3期224-231,共8页Acta Micropalaeontologica Sinica

基　　金：国家自然科学基金项目(41972243)资助~~

摘　　要：本文对老挝西北部和泰国东北部黎府构造带6个层状硅质岩考察点进行了放射虫化石调查研究,其中有5个点发现可供鉴定的放射虫化石,共鉴定放射虫化石9属23种,包括典型的晚泥盆世放射虫化石Helenifore robustum和早石炭世放射虫化石Albaillella cartalla,Al.undula,Al.paradoxa等,5个层状硅质岩考察点地质时代类似,为晚泥盆世至早石炭世。该调查成果表明,黎府构造带从泰国东北部延续到了老挝西北部万荣地区,其深海盆地演化历史应该在早石炭世晚期结束。This paper studied 6 outcrops composed by bedded cherts in the Loei Fold Belt in the northwest Laos and northeast Thailand. Twenty-four species of well-preserved radiolarians from the Upper Devonian to the Lower Carboniferous have been identified, including typical Late Devonian Helenifore robustum and Early Carboniferous Albaillella cartalla, Al. undula, Al. paradoxa and others. This is a first report about the Late Devonian-Early Carboni-ferous radiolarians from the Loei Fold Belt, which indicates that the belt extends from NE Thailand to NW Laos and that the pelagic basin represented by the Loei Fold Belt closed in late Early Carboniferous in both areas.

关 键 词：放射虫化石 古特提斯 大地构造演化 晚古生代 黎府缝合带 

分 类 号：Q[生物学]