| 成矿流体的浓缩作用及浓缩方式研究 |
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| 关键词:water-rock interaction ore-forming fluid inspissation fluid inclusion gold deposit Jiaodong |
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| Inspissation of Ore_forming Fluids and Its Forms |
| It is common for almost all of large_and medium_size hydrothermal deposits to develop widespread hydrothermal alteration,accompanied by inspissation of ore_forming fluids.Fluid_rock interaction makes initial low_concentration fluid form the metamorphic zone with water_rich minerals,and cause free_water in solution to solidify in the alteration zone.the interaction between free_water and such components as C and S together with boiling and release of pressure will stimulate the depletion of free_water and the increase of metallic concentration in residual solution.The inspissation of fluids can appear in structural zones or pore fluids.Tectonic_altered rock mapping,experimental simulation,indicator element studies and mathematical modeling for the metasomatic profile can help to determine the inspissation ranges of ore_forming fluids and the dimensions of mineralization.Hence,the theory of fluid inspissation in water_rock interaction will provide a criterion for deciding the ore_forming metamorphic formation and predicting the reserves of ore deposits. |
| LIN Wen-wei,YIN Xiu-lan.1998.Inspissation of Ore_forming Fluids and Its Forms[J].Acta Geoscientica Sinica,19(1):158-165. |
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