藏北南羌塘安多县鄂斯玛地区早白垩世孢粉化石Dicheiropollis的发现及其地质意义  

The discovery of Dicheiropollis in Esima area of southern Qiangtang Basin,Tibet,and its geological significance

作　　者：陈文彬[1] 贺永忠 占王忠[1] 熊兴国 吴滔 黎文本[3] 程金辉[3] 

机构地区：[1]中国地质调查局成都地质调查中心,四川成都610082 [2]贵州省地质调查院,贵州贵阳550005 [3]中国科学院南京地质古生物研究所,江苏南京210008

出　　处：《地质通报》2012年第10期1602-1607,共6页Geological Bulletin of China

基　　金：国家油气专项<青藏高原重点盆地油气资源战略选区>(编号:XQ-2009-1)

摘　　要：报道南羌塘盆地鄂斯玛地区首次发现早白垩世Dicheiropollis花粉。根据这一花粉的出现和整个孢粉中大量出现Clas-sopollis的组合特征,其时代可确定为晚侏罗世—早白垩世早期。这不仅为藏北南羌塘盆地晚白垩世地层的存在提供了依据,而且为今后进一步的地质工作提供了线索,具有重要的研究意义。The sporo-poUen fossils of Dicheiropollis were found from Esima area in southern Qiangtang Basin, Tibet. According to the emergence of the sporo-pollen fossils and a large number of ClassopoUis combinational features, the age of the strata can be as- signed to Late Jurassic to Early Cretaceous. This discovery has important significance in that it not only provides evidence for the exis- tence of Early Cretaceous strata in southern Qiangtang Basin but also offers clues to further geological work.

关 键 词：孢粉 早白垩世 鄂斯玛地区 南羌塘 

分 类 号：P52[天文地球—古生物学与地层学] Q913.84[天文地球—地质学]