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A STUDY OF DEEP CRUSTAL STRUCTURE OF CHINA AND DISTRIBUTION OF MINERAL DEPOSITS BY USE OF THE GEOPHYSICAL DATA

Liu Yuanlong Zheng Jianchang Jiao Lingxiu(Institute of Geopliyslics, Chinese Academy of Science, Beijing 100101)  
The gravitational effects of low density of Cenozoic basin have been corrected from the 1 : 1 000 000 Bouguer anomaly map. The deep gravity anomalies are obtained. The crustal structure map have shown in fig. 3 by using the 3D mass plane coeffecient method. The paleo plate boundary division of China are discussed. The relationships between the crustal structure, paleo plate or plate, paleorift and the mineral deposits are discussed. The mantle uplift is associated with oil (or gas) fields basin. The mantle slope zone, plate or paleo plate boundary, paleorift are favorable for matallic deposits. Point out that the areas of Xi'an-Baoji - Tianshui - Longxi - Roergai -Hanzhong-Ankang-Xi'an are the prospective regions for Au,Cu,Pb ,Zn,Fe, et al. metallic deposits.
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