CHIM mainly has been applied in mineral detailed exploration and anomalies identifyication since it was put forward because of heavy equipment, high cost, low working efficiency and not to be suitable for regional exploration. Through testing over the known ore bodies, CHIM has been improved to be low voltage‘dipole’. It showed better application effectiveness in prospecting prediction at the Taifu gold mining area in Heng County, Guangxi. Itmade improvements on what has already been achieved, so it was applied for regional exploration at 500 m ×500 m, and has enabled identification of distinct multielement anomalies at Jinwozi2210 gold deposit in Xinjiang.It indicated that the imp roved CHIM is feasible and available for regional exploration, so that the improved CHIM is not only suitable for detailed exploration but also for regional exploration.
For getting some ore′s the best grinding granularity and floating concentration condition, we adopted the way of bivector andmultilevel of positive crossingmatrix separating out factor to design the content of op timizing float-ation factor test, we have got it through analyzing the data of the test. To adopt the way of part positive crossingma-trix separating out factor arrange the optimizing floatation factor test content, it can increase efficiency of the test, and offer exact criterion for ore dressing p roduction more quickly
This text make use of an experiment method to the Z - 5000 atom Absorb Spectrophoto meter while mensu rate silver adop t of the best instrumentwork condition carried on analysis, making sure the best instrumentwork condition : the lamp current 8 mA, fuel flow 2. 0 L /min, the oxidant 160 KPa, the slitwidth 1. 3 nm, the burner height mm, the measurement time 2s. The main factor of the instrument measurement is the burner height. We have using it in fact.
Based on the analysis of the characteristics of low grade remnant orebody with remained old workings in Longshan goldstibium mine. In consideration of using existing conditions of operation, stopp ing scheme with fringedrift heading and roadway across the vein and p referential fractionmix flotation p rocess on comp lex recovery of low grade remnant orebody with remained old workings are introduced. This technology offers high recoveries of gold and stibium and excellent stopp ing safety performance and obvious economic benefit through the demonstration of one years p ractice, which can be taken by similarmines for reference
The research area with comp leted locate at the intersection site between north margin of north china and Daxinganling geosynclinal fold system in InnerMongolia, which have comp licated structures and Au, Cu, Pb, Zn,Ag polymetal belt occur in deep fault of EW direction basement structure. The gold depositsmainly distribute in Archean or Proterozoic metamorphic rock, and controlled by the margin of basement upwelling area or fault structures.gold deposit types are quartz veintype, structure fracture alteration rock type and magmatic hydrothermal vein type.The author classified metallogenic belts and 8 metallogenic areas, and forecast 378 tone Au resources exp loration potentials.
The natural vegetation iswell developed in forest landscape area, Great Xing′an Range. The grade of erosion is different in the different areas, and the alluvial gold is well distributed in the highly eroded area. The geochemical exp loration anomaly is similar to the distribution of alluvial gold, and has not relation to the looking for the rock gold. The verification of stream sediments survey has been put into effect, but the results were not ideal. The analyses of geochemistry of the landscape area, verification of anomaly, relationship of the anomaly and Au mineralization, and area erosion have been studied in this paper, the idea has been provided to apply the method of verification in a feasible order, and then p romote the ratio of hit the target of ore seeking and shorten the period of exploration.
There are two gold deposits and three gold mine areas in the Xiaowannanshan gold deposit, which has two characteristics of largermineralization and lower quality. There are fourmainly types of gold deposit, quartz vein type, slacking alteration rock2quartz vein type, albitite type and secondary quartz. The mine mineralization is con2
trolled by the Greenstone Belt of theMiddle Proterozoic Period. The exact location of gold deposits and gold mine areas is controlled by Volcanic and Subvolcanic Rock Body. The gold deposit is controlled by brittle structure of ductile shear zones. Two gold depositswas chosen
By analyzing the grade and thickness data of the eighth ore body of Shuangwang gold deposit and calculating index ofmineralization level of the ore body. We try to discuss mineralization regularity of the ore body on strike and vertical direction from exp loration angle. It is theoretically and p ractically important to deepen understanding oreforming regularity of Shuangwang gold deposit and to direct p rospecting and exp loration at the area.
Studying predecessors’geophysical exploring methods in this area and the external area and parameters of rocks and minerals , as well as the trying of method and device of formal preconstruction , has set up a set of economic geophysical exploring methods. By the use of geophysical methods in the area , has expored a few concealed ore bodies and achieved better geological effect. A ideal geophysicalmodel has established for geological exploration in the external area.
The Pangkaimen gold and silver deposit is located in simultaneous southeast of early flourishing tower source J ialidong six p redestined relationship s activities end, be that the low temperature volcano heats up liquid type gold and silvermineral deposit , the ore type is gold ( silver) quartz pyrite in the deep source , the distant source, type. By becoming ore scheduled time to the mineral deposit geology characteristic , the earth physics characteristic , geochemistry characteristic , ore type, time, fluid inclusion and stabilizes isotope geochemistry characteristic research. The first step has been ascertained beingmineral deposit’s turn looking for the ore sign to be silication breccia, the structural multiunit relationship converges to get along ( especially the north north east , the north north west structure relationship converges to get along) , silication , pyriterization growth , eclip se are changed into intense section of an area, Au , Ag give first p lace to for the middle low temperature ( accompany soil geochemistry havingAs , Sb) abnormally , high resistivity to become the ore temperature extraordinarily. That sign iswith regard to nearby open the door area seeks and type kustelite has certain guiding significance.
J iusangou gold deposit located the east extending of comp licated structure area of the Mt. Yin2the Mt. Heaven, and the north ofWufeng Xiaoxinancha Upheave area. The shape of gold deposit often is sector, sandwich, cystiform and abnormity. The paper classifies the gold deposits into four main metallogenic stage according to the oreforming materials: quartzarsenopyrite stage, pyrite stage, natural gold stage2multimetals sulphide stage, carbonate stage. However, the research conducted by the authors on the fluid inclusion and isotop ic element ( S, Pb, Hand O) in the area shows thatmetallogenic liquid of J iusangou gold deposit is a admixture of magma rock and atmosphere p recip itation. The ore2formingmaterials resourced from the up side of geocurtain, and the relation is close withMesozoic lava and hypolava.
Manzhanggang gold deposit in QingHai Province had discoveried 37 strips gold orebody and other lowgrades, which of M4 has exploited ten years, accumulated produced gold nearly tentons. We discuss this area of geochemistry characteristics and prospecting, this area should prospect quartzpulsmaily in prospecting director.
Mayinggou stibium deposit is located on the east ofQilianMountain , itwas p roduced in the breccia sandstone atMayinggou formation of Silurian. It’s grade is higher, and connects with structure and magmatic rock , so this deposit is low temperature and the mesothermal - ep ithermalmarble deposit. We make an analysis about its geology background, metallogenic series, geography condition et al. We think that it has a better p rotecting orientation.
Mineral resource is a kind of real p roperty. The ownership ofmineral resource means the national ownership of mineral resources. Mining right is exploring and using all the nationalmineral resource, therefore enjoy the benefits of a right. Itwas app lying free use system and free acquisition system in Planned Economy System Period.The Market Economy System , as requests applying paid use of mineral resources system and mining rights paid acquisition system. The construction of the system about the use of mineral resources and mineral rights is branched out into three stages: exploration and finding , exploration and evaluation stage, mining type. The value of mineral rights is made of the proceeds of national ownership and the income of investors. The income of investors is decided by the value of mineral rights , not decided by the fund paid out. The sun of money about mineral rights is made of the proceeds of national ownership and the income of national investors.
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