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本文考虑放射性热源,采用非线性稳态有限单元法估算了喜马拉雅地区地壳的温度分布和地表热流值。 喜马拉雅山南、北有不同的地壳温度结构,南部等温线比较均匀,地表热流值低于1.5HFU;北部地表下20公里以上等温线成密集型分布,20公里以下成环状分布,地表热流值从1.5HFU至2.1HFU。根据等温线圈出西藏南部地区地壳内可能存在局部熔融的部位,并与其他地球物理资料作了比较。
In this paper, considering the radioactive heat source, the temperature distribution and the surface heat flux in the Himalayan crust are estimated by using the nonlinear steady-state finite element method. The Himalayas have different crustal temperature structures in the north and a relatively uniform isotherm in the south with a surface heat flux of less than 1.5HFU. The isotemperature above 20 km above the surface is densely distributed over the northern part of the Himalayas, and a ring below 20 km. The heat flux from 1.5HFU to 2.1HFU. Based on the isothermal coil, there may be some local melting sites in the crust in the southern part of Tibet, which are compared with other geophysical data.