THE "MULTI-POSITION IN ONE" MODE AND DYNAMIC MECHANISM OF MINERALIZATION OF TUNGSTEN DEPOSITS IN JIANGXI

Taking the Zhangtiantang-Xihuashan tungsten band as an example, this paper proposes a "multi-position in one" mode for tungsten deposits based on lots of explorations for tungsten deposits in Jiangxi.The core of the mode is the structure-magma-metallogenic series with genetic relation, composed of different kinds of tungsten deposits and with metallogenetic granite as its main factor.It focuses on displaying the four-dimensional structure of vein-type tungsten deposits and rules on orientation as well as various modes of vertical zoning in deposits.Meanwhile, based on obserbation of the thermodynamic process of vein-type tungsten deposits, this mode reveals the alternation of zone-level extrusion and twist with induced part-vertical inner stress field, and cutting and fracture of rocks with their expanding and recharging.It also shows constraint of the process on the whole structure of tungsten deposits and their temporal and spatial distribution.