On the basis of field geological work,using mathematic geology method,the paper carries through the analysis on the varying law,relationship of trace elements and the primary halo feature in different elevation of the new and old Ⅲ vein. And then summarize the alteration law of the indicator element in them etallization process. Determine the F1 ma in factors of Au in the two Ⅲ vein are respectively Bi、Ag、Sb、Pb、Hg、Cu、Au and Bi、Ag、Au、Pb,which reveal the dominant mine ralization period of Au in the hydrothermal process. A t the same time, the paper forecasts the deep mineralization feature of the two vein.
The new data of metal logenicepochs,the zoning of the mine ralization ,fluid inclusions and deep mining outcrops in the Jinqingding gold deposit have been reviewed comprehensively.Through the detailed observation,a group of fluid metallogenic structural evidence has been confirmed.In combination with the distribution character istics of metallogenic elements, mineral associations,fluid inclusions with their trapping temperatures, pressures and compositions at different elevations,the paper proposes the new localizing mechanism of ore-forming fluids in the deposit.The ore-forming fluids with medium-high temperatures mainly originated from the magma.The deposit was the product of secondary crypto explosion, boiling,rapid dropping of pressure and temperature of un solidified relict fluids which derived from the primary ore-forming fluids of medium-high temperature and high pressure at one epoch which invaded,localized at the depth and formed the solidified crust after the first dropping of temperature and pressure.It seems that gold mineralization happened in two stages o f flu id - host rock interaction:( 1)dominant gold crystallization and solidification in the depth after the dropping of temperatures and pressures;( 2) gold and multiple metal crystallization and solidification at shallow parts after the cryto explosion. Consequently, the Jinqingding deposit possess the zoning features of metallogeny. The new know ledge o f ore body zoning metallogeny helps to direct regional mineralization regularity studies and deep prospecting work in the district.
The Dongan gold deposit in Xunke county,Heilong jiang province,being a epithermal type gold deposit recently discovered.Controlled by the junior of Kuerb in crust structure,orebodies occur in the silicon alternation zone of the inter media teacidity volcanic-invasion rock,the late Indo-china epoch alkali-feldspar granite and the late middle Yanshanian epoch fine-grained alkali-feldspar granite.
Yuandingshan golden deposit is a part of eastern Guangxi and western
The new cognition background, the factor of control mine and the regularity of the formation of geology, which is the analysis and summary of mine area of Hetai Gold Mine and according to the scope of the mine area of the geology data proceeds research.We can get some new know:there is still exist ore body in mylonite silice-schist and splintering magmatite outside of mylonite. it will be the weaken drift change with deep. 3 it should be reconsider on a small - scale ore body, it can not beignored.The new know can provide theoretical basis for geologic prospecting and mining operation.
Breccia golden deposit is extraordinary sort，which features complicated existence and uneven distribution of useful composition.In estimation of orebodies ordinary sampling method easily contribute to ore losing and artificial high grade.the technological staff of jingyuan corporation solve the above problem successfu lly by means of increasing vertical flute sample according to mineralization characteristic.
Through summarizing the character of ore deposit geology and ore control structure in Hetai gold field, the rich pocket output feature, ore feature and the formation mechanism are dissertated.On this basis, the probing afterwards of the Hetai Gold Mine Is prospected.
This paper makes a brief introduction to the development of the air blasting gun at home and abroad,mainly give examples of its application in metallic mineral plants and makes comparison between some result of application.
The average content of gold is 5×10-9 in the earth! scrust.And the gold exists as the natural gold and gold mineral.Determining the rock and mineral before the gold quantitative analysis.According to the existing state and particulate of gold in the mineral and using the methods of making sample、roasting and disintegrating purposely which are fit for the gold analysis and test of this state, it can improve efficiency and accuracy of gold quantitative analysis clearly and save the manufacturing cost.
work instance of surrounding-protecting is summarized over the years,namely,achievement or experience to manage waste-water,wastegas,waste removal improvement measures is pointed out to settle quenstion exist.
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