In this paper main mineral resources development strategy is described in the world and developed countries. the prediction of the demand on mineral resources and mineral resources in China development prospect and strategy.
The Dongan gold deposit occurs mainly in metasomatic-quartzite inter-out zone contacted with the late middle Yanshanian period latent rhyolite and the late Indo-chinese epoch alka lifeldspar granite. Them inority occurs inmetasomatic-quartzite zone contacted with the dacite (that is in lower Cretaceous system Guanghua group) and ryolite. The ore-body is in control of SN extension fault strictly. Ore-form ing fluids of mixed hydrothermal solution came from the late middle Yanshanian period latent rhyo lite. Ore-forming material came from latent rhyolite, and extract from crystal line basement that is upper Proterozoic Erathem Yimianpo group epizonalme tamorphism intermed iate acidity volcano-fine grained fragmental rock and wallrock, the late middle Yanshanian period fine grained granite, the late Indo-chinese epochalkali-feldspar granite.
The Possibility of poretreatment of Chalcopyrite by hot-press acid oxidation was analyzed by thermodynamics and the dynamic analysis of mechanism in its process was made in this paper. The effects of temperature, pressure et al. on the poretreatment of poretreatment of Chalcopyrite by hot-press acid oxidation were investigated and the optimal technology conditions were also confirmed sequentially.
A lot of gold-bearing sulfuric-acid slag produced from sulfuric-acid plants using cyanidation tails of gold concentrate as raw materials are soled to cement plants now because Its' not only has low gold content and recovery, but also higher production costs. Then lot of gold is lost. The new process can recovery gold economically from the slag by chlorine leaching and extracting gold from leach liquor with active carbon, the new process will be industrialized with more simple technology and lower invest and cost, no environment pollution also.
The article applied the fuzzy decision space and optimized themining methods which were used in updating the technology of the Xiao Tie Shan lead and zinc mining. It obtained the mining methods which were appropriate for exploiting the Xiao Tie Shan lead and zinc mining.
Based on the analysis of some relevant aspects of filling stopes method, the paper thinks
some effectivemeasures, for example, reasonable underground filling useful to the surface protection, should be taken from the techno-economic point of view.
offering-using electricity general situation was introduced, technology of high-handed centralized compensate or low-handed unmerited compensate was clarify, bring obvious economy benefit.
build up water method that applicated over the years was introduced in this arctice and application consequence was evaluated, according to crack gushingwarte large and drain expense accountmining costing one third.
feng jia shan copper mine was establish and put into production in 1969, it work exceed time limit till 2000, feasibility of caudal mineral storeroom close and govern compositive was studied to eliminate harm, benefit descendants.
This paper mainly describes the damage of mud-rock flow and major factors of its formation. Accordingly it points out some preventivemeasures against it. It cites instances of landslides of spoil dumping sites as its argument.
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