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《Progress in Geophysics》 2006-01
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The wave characteristic of Precambrian base metacomplex in high-temperature and high-pressure and the crust structure of South China

XIE Dou-ke~(1),ZHOU Yu-zhang~(1),ZHANG Kai-bi~(2),XING Guang-fu~(1)(1.Nanjing Institute of Geology and Mineral Resources,Nanjing 210016,China;2.Fujian Institute of Geological Survey,Fuzhou 350003,China)  
At present,Geophysical detection including the several great geological sections in South China has gained a large number of deep information about earth's crust structure,but it is still inadequate to the physical property research of the base rock.We select the representative rocks from different depth in crust in Yangze Craton and Cathaysia,and run the elastic wave characteristic research in high-pressure and high-temperature.As a result,the wave velocity of the two structural units are different obviously,so we think there is great difference in the constituted materials,and the crust structures are entirely different. And then,we initially built their crust structures respectively,thinking there is multiple layers structure in the Yangze Craton crystal base and three layers in the Cathaysis crust structure but no crystal base.This model reconstructs the crust structure of South China,and has the important meaning to the deep geological research and structure evolvement in South China.
【Fund】: 原地矿部科技司重点科技项目(9501109)资助
【CateGory Index】: P588.3;P541
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