Research Of The Causes Of Gold Deposits In Northwest Of Tulasu Basin

Tulasu ore belt located in the southern slope of fault fracture and the northen margin of fault in the Yining basin.It is more than 20 kilometers wide north-south, from east to west over 50 km, and extremely complex geological structure and rich in resources.There have been found more than 10 gold deposits in Tulasu basin. The largest of Axi Gold Deposit, long-term reserves have 100 tons.Deposits in the area earlier had conducted research, but have been found four gold deposits contrast in the northwestern Tulasu basin.Based on the regional geological of Tulasu basin, Comparative and analysis the stratigraphy, tectonics, igneous rocks, rock alteration, associated elements and inclusions of the four typical gold, that is, Axi,Yelmand,Mayituobi, Jingxi - Barak gold mimne. Summed up the causes of the gold mine. Achieved a new understanding of the following1,Four gold deposits in the study area were produced in the Lower Carboniferous Dahalajunshan Group (C1d), but the output layer is different from the middle of Axi Gold Deposit ore lithology in the fifth paragraph, Yelmand,Mayituobi,Jingxi - Barak gold ore production in the second paragraph lithology.2,The source material of gold deposit in north-western basin originated the magmatic rocks , Jixian, the Ordovician and Silurian strata.3,Axi orebody is controled by the fracture, Yelmand, Mayituobi, Jingxi - Barak orebody by Stratigraphic occurrence and unconformity.4,Au, Ag, As, Sb, Hg single-element anomalies nested each other, with a clear concentration of points is beneficial to the region looking for gold.5,From the characteristics of the ore-bearing fluid flow analysis to see that magmatic - hydrothermal volcanic-based, mixed with some precipitation compose the fluid of four gold deposits.6,Gold Deposits type of the north-western Tulasu basin is epithermal.