| Xiao lingshan gold ore beds in shandong province QiXiaShi jian fracture between the fracture and plates, large lingshan fault(north east) through the study area, fracture structure, the ore deposit in jiaodong area is important for gold, silver, copper, lead, zinc,molybdenum polymetallic metallogenic province and so on in one of the many ore deposits,metallogenic conditions is very good.Formation is mainly GuYuan ancient kingdoms jingshan, FenZi mountains and Cenozoic strata. Small lingshan gold deposit has a wide distribution of magmatic rocks,mainly is new too early qixia rock set back to the ancient dragon basis unit, lithology article for fine grained strip flash dark clouds tonalite Angle. Various types of structural comparison research area,. In nature, can be divided into the fracture zone of brittle fracture and ductile shear zone. The north north east, north west tectonic development and scale is larger, a long stretch, is the main ore-controlling structure.This paper studies geological features of gold mineralization, including gold orebody,space distribution and form of ore rock and wall rock alteration and mineralization stages,ore structure, ore mineral composition, ore types, as well as the occurrence forms of gold and so on. According to the field geological investigation and sample collection work, ore field geological investigation, and the related samples to carry out the major elements,trace elements and rare earth elements testing, analysis of ore deposit geochemical characteristics. By formation and metallogenic relationship, tectonic and metallogenic relationship, study on the relationship between the magmatic rocks and ore-forming xiao lingshan gold deposit ore-controlling factors. Paper made the following main understanding:1, through system analysis on regional and structural evolution, think structure distribution north of the north east, north, to construct the development have created favorable conditions for mineralization. Mineralization is mainly controlled by the north north east to fracture structure factors, at the same time, the relationship of magmatism and mineralization is relatively close, dragon veins mainly by back basis construction control.2, north north east to north west of fracture and secondary faults control the formation of ore deposits and the main ore body, positioning, north north east, north west fracture is the main ore-controlling structure.3, the formation of xiao lingshan gold deposit, and the location is a north north east to magma thermal contact zone overlap tectonic system, fault and magmatic emplacement striker ultra shallow into phase, time in acidic volcanic rocks(vein) on the open section and cryptoexplosive breccia tube around the development of tectonic fracture dense zone of joint control.4, think xiao lingshan gold deposits in the study area Au ore-forming materials come from Angle of dark clouds tonalite, back to the Angle of the dragon basis flash dark clouds tonalite formation is the source bed. Ore deposit types in the study area is dominated by magmatic hydrothermal mineralization in the low temperature metamorphic hydrothermal filling gold deposit. |
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