Tectonic Metallogenesis And Metallogenic Prediction Research Of Mouru Gold Ore Belt

The MouRu region lies in both of Mouping district and RuShan city, YanTai city, the east of Shandong peninsula. There are two kinds of rock mass seen in the region, one is Jiaodong group to the moderate metamorphose extent, another one is the granite. The Gold mine beds mainly lie in Kunyushan granite and Jiaodong group partly, and the direct resource of the gold is wall rock, that is Kunyushan granite.There are five main gold-containing ruptures, which are in the approximate SN-orientation, the strike is NNE, the dip is about 80 ; The gold mine beds exist in above ruptures and accessorial ruptures, rupture's breadth is about 10 meters, and their shapes is f lexuosity in the strike and dip, and orebody pinches, then appears or pinches then appears in both sides of rupture in strike and dip.The discourse is on the basis of collecting predecessor's information, and brings to success by field autoptical and studies indoors. By researching geology condition and geology background, discourse thinks that TanLu rupture is mine-leading structure, the greater NE-orientation ruptures are ore-proportioning structure, SN-orientation ruptures are ore-containing structure in MouRu ore belt. At the same time, the thesis has also made a discuss about the genesis of the ore belt, and brings forward a new cognition that partial aurum comes from the mantle.The discourse discusses structure pattern, rupture-distributing law and ore-controlling action about MouRu ore belt. Grasping distribution rule of the fractures in ore-forming zone by remote sensing analyse and field survey, and made a research about the ruptures' ore-containing character in the different orientation, putting forward that four NE-orientation structure containing-ore zone alternate with strong and feebleness. The discourse think that the deposits are restricted by two NW-orientation geochemistry blocks, the NE-orientation structures and NNE-orientation ruptures, that is to say, there are industry gold deposit when NNE-orientation ruptures locate in two block and crossed by NE-orientation ruptures, but other region is difficult in forming ore beds.The discourse studies cause of formation of the ore-containing ruptures by geometry, history of moving and character converting, then proceed to the next step, puts forward ore-forming law, and forecasts some places which perhaps contain ore. At present, some have been approved by bores and pits, some have been proofed by geophysical prospecting information.