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《Geological Science and Technology Information》 2005-03
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Effect of Permeability on the Thermal and Fluid Fields of Ore-Forming Fluids:A Case Study from Xikuangshan Antimony Deposit

YANG Rui-yan 1,2 ,MA Dong-sheng2,PAN Jia-yong2(1.State Key Laboratory of Mineral Deposits Research,Nanjing University,Nanjing 210093,China; 2.Faculty of Mathematics and Physics,China University of Geosciences,Wuhan 430074,China)  
Sedimentary basins are the places for fluid activities whose moving conditions is characterized by permeability.The fluids driven by heat and gravity depend on the geohydrologic conditions and the characteristics of ore-forming fluids in sedimentary basins. In order to study the effects of permeability variations on both fluid fields and thermal ones, this paper takes advantage of a series of permeabilities to calculate the distribution patterns of regional fluid and thermal fields.Different simulation results are obtained by changing the permeability parameters in strata. It can be concluded that the permeability affects fluid fields more than thermal ones. With the variations of permeabilities, the thermal field just varies from 5% to 10%, whereas the influence of the fluid field may exceed 2 or 3 times.
【Fund】: 973项目(G1999043210);; 国家自然科学基金资助项目(40073007;40272080)
【CateGory Index】: P641.5
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