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西藏北部的班戈县及其邻近地区分布着一系列长条形的新生代盆地:伦坡拉盆地、班戈盆地、伦北盆地及洞错盆地(见图1)。这些盆地内发育有几千米厚的第三纪地层,本文着重介绍伦坡拉盆地的第三系和班戈盆地的新生界,并概略介绍洞错盆地及伦北盆地的第三系。文中的地层资料引自我大队综合研究队及井队地质组历年资料,伦坡拉盆地第三系孢粉资料是倪进沧同志提供的。
A series of long bar-shaped Cenozoic basins are located in Bangor County and its adjacent areas in northern Tibet: the Lunpola Basin, the Bangor Basin, the Lunbei Basin and the Tver Fault Basin (see Figure 1). Thousands of meters thick Tertiary stratigraphy developed in these basins. This paper focuses on the Cenozoic of the Lunpola Basin and the Bangor Basin, and gives an overview of the Tertiary in the Totoro Basin and Lunbei Basin. The stratum data in this paper are derived from the historical data of the Integrated Research Team and the Geologic Formation of the Well Brigade. The Tertiary sporopollen information in Lunpola Basin is provided by Comrade Ni Jinchang.