Palynological assemblage of Eocene-Oligocene pollen and their biostratigraphic correlation in Dahonggou, Daqaidam Area, Qaidam basin

被引:30
|
作者
Lu J.-F. [1 ,2 ]
Song B.-W. [1 ,2 ]
Chen R.-M. [3 ]
Zhang J.-Y. [1 ,2 ]
Ye H. [1 ,2 ,4 ]
机构
[1] Key Laboratory of Biogeology and Enviromental Geology of Ministry of Education, China University of Geosciences
[2] Faculty of Earth Sciences, China University of Geosciences
[3] Xi'an Institute of Geology and Mineral Resources
[4] No.756 Geological Party, Guangdong Bureau of Geology
关键词
Biostratigraphic correlation; Cenozoic basin; Northern margin of Qaidam basin; Palynological assemblage;
D O I
10.3799/dqkx.2010.097
中图分类号
学科分类号
摘要
Based on the data of palynology from the Dahonggou Section, Daqaidam area in northeast marginal Qaidam basin. 5 palynological assemblages are recognized as follows: Quercoidites-Ephedripites-Meliaceoidites from the upper Lulehe Formation belongs Early Eocene; Quercoidites-Piceaepollenites-Meliaceoidites from the bottom of Lower Ganchaigou Formation belongs to Middle Eocene; Ephedripites-Qinghaipollis-Nitrariadites from the middle of Lower Ganchaigou Formation belongs to Later Eocene-Early Oligocene; Ephedripites-Chenopodipollis-Nitrariadites from the bottom of Upper Ganchaigou Formation belongs to Middle Oligocene; Betulaepollenites-Ephedripites-Pinus from the top of Upper Ganchaigou Formation belongs to Late Oligocene. Palynological assemblage from the Tarim basin, Qaidam basin and Xining-Minhe basin can be well compared.
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页码:839 / 848
页数:9
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