Abstract
The depth of Curie surface in Chuxiong Basin,Yunnan Province,is es-timated by application of aeromagnetic survey data.On this basis,the averagevalue of geothermal gradient of different regions in the basin is further calcu-lated.The result is that,geothermal gradients of the basin range from 1.4 to 3.9℃/100m,the average value is 2.8℃/100m.Three regions of high geother-mal gradient may be considered to be promising areas for hydrocarbon prospec-ting.
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