Yunnan Honghe Green In The Spring Of Malaysia Jianshan Arsenic Copper Polymetallic Ore Deposit Geochemical Characteristics

The district is located in one of the jingda-weixi-lvchun television gala at the end of the Paleozoic era-early Mesozoic volcanic belt arc of the overriding the southernmost tip of phase. The general tectonic framework:Mainly is the north west to or nearly run north to south, From a series of fold, fracture composition, the structure form large scale, extend far, and with magma intrusion, later structure to be destroyed. Mainly formation of the district is:paleozoic silurian (S), there are the Permian (P) and Mesozoic Triassic (T), Jurassic (J), the cretaceous (K) formation. For a generation anddistribution as well as the next series regional shallow metamorphic rock, the original rock for a shallow sea-the gulf in shale clastic rock, sandstone lithologic association SLATE of one layer for the Lord; In the magma activity mainly for printing a later quartz porphyry invasion and a small amount of the bright porphyry penetration. Wall-rock alteration have chloride, potassium, melt sericite change, green shade petrochemical, electrical petrochemical, etc.The Orebodies are controlled by Quartz Porphyry and Faults, viz. that generally they are outputted near the contact zone of Quartz Porphyry and Silurian Formation, or in the Fault Fracture zones, which Originally thought are related to the Late Yanshan Tectonic Movement. After the dating analysis found that the mineralization and diagenesis is formed in the Indosinian. As to the Ore-Forming Fluids of the Damajiashan Cu-As Deposit of LvChun District, the Mineralization Temperature decreases from the lower to the upper part, and meanwhile the Mineralization Salinity increases, Homogenization temperature change significantly, suggesting that, from the lower to the upper part of the fluid, there is a progressive evolution between Na-rich System to Ca-rich System. The presence of methane-rich inclusions, combined with fluid homogenization temperature and salinity evolution trend, suggesting that the lower part of the ore-forming temperature may be higher, there should be more strongly mineralized mineralized zone。This is consistent with the actual geological features;In the study of ore-forming fluid characteristics,Found that the characteristics of tungsten mineralization in the more middle of the tungsten mineralization is a new discovery of this research work.In this area, the Cu-As and W Ore-Forming Fluids flow characteristics are different, suggesting that there was2phases of metallogenic characteristics. Of Cu-As mineralization characteristics of the ore-forming fluids is significantly different from the characteristics of typical porphyry-type deposits, so it’s considered to be a structurally controlled Hydrothermal Vein Type Deposit.