Shanggong Gold Deposit Ore-controlling Structure And Mineralization Studies In Western Henan Province

The Shanggong gold field is located in western Xiong’er Mountain of Yuxiarea.tectonic position is located at the southern margin of the North China platform,HuaXiong platform uprise,Xiongershan upwarping faulted zone.Multistage mantle plumeevolution of tectonic units in the Xiong’er Mountain mantle branch periphera detachmentzone. Xiong’er Mountain region is the second largest gold-producing area in Henan andShanggong Gold Field is a typical representative.It is concerned about the vast number ofexperts and scholars and higher degree research in this area has accumulated a wealth ofresearch results.Take full advantage of previous data on the basis of field studies progress,startingfrom the regional tectonic,geological features,geochemistry,and ore-controlling structures,mineralization study from the mantle plume evolution view Shanggong gold Tinore-controlling structure conditions,discuss of mantle branch ore-controlling characteristics,the establishment of the ore-controlling mode of Shanggong gold field. Main understandingof:1.Xiong’er Mountain mantle branch is the main ore-controlling structures,ShanggongGold Field is located on the mantle branch peripheral detachment band in WE detachmenttends to bring anti-shovel-shaped fracture control panel on Shanggong,Ganshuand andother deposits.2.The main mineralization Xiong’er Mountain area with ore-controlling structure,ore-controlling fracture gold field, gold ore body control fissure in the background underthe mantle branch formed a system-mineralization tectonic system.Many branches ofactivity of faults, the composite overlay area,with changes in the production structure likespace and turning parts of the sides of the main structure near the upper and lower plate atall conducive to the distribution of the ore body.3.And post-magmatic hydrothermal alteration related to the development of rock andmore acidic pyrite phyllic, silicification, sericite,calcium-rich mafic rocks multiferroicdolomitization, silicification, sericite and carbon occurrence happened salts and so on. Andaltered rocks accompanied output metal sulphide mineralization directly or indirectlyreflect the spatial distribution of gold deposits in the position.4.By isotopic analysis of data showed that the sources of minerals to mine deep intothe main mineralization magmatic water-based solution, mixed with meteoric water and metamorphic water,can not change the close relationship between Deposit and deepmagmatic water.