| This paper was completed based on researches of orefield structures of Baiyangping multi-metal mineralization concentrated field, and analysis on structure dynamics of ore-concentrated area and adjacent in Lanping-Weixi area, Yunnan province.In Baiyangping ore concentrated area, the master mineralization epoch is in Lanping basin became imbricate down-warped, strike-slip and pull-apart basin. In Himalayan, the first era (45Ma) the basin is titled; the second era (23Ma) it is differential uplift and denude; the third era it is brittle defonnation.In eastern ore belt, ore-controlling is mainly strike-slip fault and fold; but in western ore belt, it is block. Principal compresso stress of mineralization epoch is measured 34-46Ma by means of AE method, and its orientation is EW-trending by conjugate fracture, at last, the dynamic mechanics of the rhombic shear fault grid is analysised, ore-controlling law of the regional and ore-belt are determined, and combined with geophysical prospecting,ore-forming are forecast. Based on the regional structure dynamics analysis of the lithosphere imbricate structure in Lanping-Weixi area, the middle section of three-rivers area (N26 -28 ), the Bouguer gravity anomaly of deep structures was completed and the fractal of these faults was calculated. The geology structure model and the elasticoplastic three-dimension finite-element mathematic are described, made and calculated; and physical simulation was accomplished. At last, point out the structure is SN-trending shear belt in shadow; EW-trending compresso belt in deep. The pattern was formed when India plate shift to north (65Ma) and Tibet-Qinghai plateau uplift (25-17Ma), and they related with Yangtze landmass each other. Finally, author have discussed the relationship transformation process of the Honghe fault shear mode and block movement, proofed that the eta-type tectonic system was formed in Miocene epoch.
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