Geology And Geochemistry Of Gold Deposits Research In Hadamengou Of Inner Mongolia

Hadamengou 13th gold vein in the central Urals, from the city of Baotou in Inner Mongolia about 20 kilometers. Huhehaote - Baotou large faults from the south area, the gold vein developed faults and faults are sub-structures.The paper basis of 13th gold vein and tunnel site visits and systematic geochemical sampling on a test.The results show that: 13th gold veinin the Hadamengou mainly contain gold-bearing quartz - K-feldspar veins. Followed by potassium feldspar altered rocks and gold-bearing quartz vein, 13th gold veins generally showed vein, a simpler form, produced in the Ural Mountain Group hornblende biotite plagioclase gneiss. Gold-bearing minerals are mainly pyrite.followed by galena, chalcopyrite, sphalerite. Minerals not found in visible native gold, which the gold is not visible in the form of microscopic. After the initial measurement, the native gold is about 0.13mm in diameter.Hadamengou gold deposit characteristics of complex combination of elements.Correlation analysis showed that, Au elements and Cu, Co, Pb ,Bi, Ag, Mo element is positively correlated. And it with Ni, Zn, W, As, Sb, Hg elements Negative correlation.The R-type cluster, Au and Pb, Ag, Bi, Zn, Cu elements in close relationships, which reflecting their symbiotic relationship in space.Au and Ag, Cu, Pb contour shape is very similar and the Anastomosis was good. Ag, Pb, Bi can be used as the main indicator for Auelements.Based on Hadamengou primary halo of gold, which result that primary halo obtained with the sequence of top-down vertical axis is:(Sb,Hg,Ni)—(As,Cu,Au)—Zn-Ag—Bi—(Co,Mo,W)—Pb(Front→end).Deposit zoning sequence characteristics of halo central element Pb in the lower ore body and element NiAppears in the upper ore body. This is a multi-phase superposition of the original halo ,which the results show that the "anti-sub belt " sequence. It is directly deposit in the lower part of the body may still have the presence of gold.