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《Chinese Journal of Geophysics》 1995-03
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THERMAL HISTORY OF ORDOS BASIN ASSESSED BY APATITE FISSION TRACK ANALYSIS

REN ZHAN-LI (Institute of Oil and Gas Basin, Northwest University, Xian 710069)  
In this paper the thermal history of the Ordos basin has been analysed with the method of apatite fission track analysis.the data of apatite fission track in different structural units show that the palaeotemperature gradient(3.3-4.1℃/100m)and heat flow(81-95mW/m2)in the late Mesozoic is higher than present gradient(2.80℃/100m)and heat flow(63mW/m2).This thermal event was favourable for gas generation and migration and for giant gas field formation.Apatite fission track data show that there was a cooling event which occurred 20-23Ma ago.
【Fund】: 国家“八五”重点科技攻关项目
【CateGory Index】: P314.2
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