| With the fast and steady development of economy in China, the mine-resource restrict the economy's development more and more distinctly .If our country want to economy develop fast , we must heighten the reserves of mine. Hydrothermal-type lead-zinc mine is a magnitudedinous type of Lead-Zinc Ore , the reserves of which occupy a number of Lead-Zinc ore in China. Thereby the assessment and forecast about the potential of Lead-Zinc Ore in our country depend on the research of Ba Jia Zi Lead-Zinc ore. Ba Jia Zi Lead-Zinc ore, which is representative, is representative ore of Hydrothermal-type lead-zinc mine at Liao Ning province. By way of typical Hydrothermal-type lead-zinc mine , Ba Jia Zi Lead-Zinc ore is much more importance.This article apply typical mineral theory and method to study Ba Jia Zi lead-zinc mine. It uses the research methods and processes of typical mineral deposit to research Ba Jia Zi Lead-Zinc ore. The article also pays more attention to the geological features of Ba Jia Zi Lead-Zinc ore, including stratum, geological structure, activity of magma, wall-rockalteration and the geological,physics characteristics of deposit, etc. Through the description to stratum of ChangCheng which include Da HongYu and Gao YuZhuang, we got the conclusion that the wall rock of Jia Zi Lead-Zinc ore are dolomite,fine-sandstone,sandyslate,dolomite-marble. The epoch of Gaoyuzhuang,transgression enlarged,BaJiaZi come into being tidal-flat facies sediment condition. For the reason of tidal-flat facies sediment condition gradually transport into semi-close lagoon bay sediment condition and beach form parallel with coastal. With result, Bajiaz'is originality sediment condition become into impediment tidal-flat environment and the water in lagoon tidal-flat environment are much more steady,stagnancy and organic matter,the sediment condition become deoxidize condition which in the favor of mine element enrichment and form source bed. According to characterization of diggings fault and investigate diagnostic of area fault, we believe that fundus fault and deep and bigness fault control Bajiazi Lead-Zinc ore. Fundus fault control the aboriginal sediment condition and source bed forming ,deep and bigness fault control magmatic rock and interspace distributing of mineralization. Activity time of magma fasten on phase of YanShan and form Jian Chang and ShengZongMiao super-element rock mass. The activity of inrush magma bring not only mine substace—Pb,Zn but also essential element of mine—S, At the same time ,age-old seawater which seal up for keeping in the stratum and the rain water filter from the fault and rock crack ,which are heated up and the mine element ,which exist in the ource bed,that the activity is more violent. All these can come into the hot-liquid and form hot-liquid with mine element. Summarizing the geologic character of Bajiazi Lead-Zinc ore:1,The known mine ,which from Bei Shan to Bing Gou ,extend 5km along NW,strike 310°-330°, NE incline, obliquity is 35°-60°and the mine are lens and bedded or saccular; 2,Mesozoic is the period of Bajiazi Lead-Zinc ore's formed; 3,he wall rock of Bajiazi Lead-Zinc ore is GaoYuZhuang which is terrigenous clastic rocks; 4,The ore have a equality digit and a high digit at part of mine. Mine possess obvious zonation electrophoresis, There are thre types of skarn: Magnesium skarn,Calcium skarn,Calcium manganese skarn. At the different part of mine the mineralize electrophoresis and mineralize degree are different and the Lead-Zinc ore local in the Calcium manganese skarn.;5,With the investigation of ore and assort the ore configuration with three types—sediment configuration, hot-liquid configuration and stress configuration. This three configuration types show that come into being mine has distinctness time; 6,Compartmentalizing mine epoch,mine phase and comfirming the character of mine epoch which is confirmed by ore configuration. On the basis of Bajiazi Lead-Zinc ore's geologic character, establish Mineralization pattern of Bajiazi Lead-Zinc ore. Proterozoic, after forming ledge and lean mine , magma heat up the stratum of Proterozoic and ground water, which is formed hot-liquid which get along the fault and cranny of rock and get reaction with rock. Along with the decreasing of temperature,pressure, the hot-liquid sedimence in the fault and form the Lead-Zinc ore. According to discuss the process of mineralization , we establish the Ba Jia Zi Lead-Zinc ore's Mineralization pattern map. On the bases of geological features of Ba Jia Zi Lead-Zinc ore and mineralization pattern, firstly ;picking up Ba Jia Zi Lead-Zinc ore's mineralization factors and ascertaining forecast factors. With these, we protract Ba Jia Zi Lead-Zinc ore's mineralization factors and forecast factors map, and establish Ba Jia Zi Lead-Zinc ore's forecast model map. At last I forecast on Ba Jia Zi Lead-Zinc ore with forecast factors.The article's conclusions :1,On the basis of investigation of Ba JiaZi typical deposit, establishing the Mineralization pattern map of Ba JiaZi.2,Extract Ba JiaZi Lead-Zinc Ore's mineralization and forecast factors, and form the Ba JiaZi Lead-Zinc ore's mineralization factors map. Picking up mineralization factors and forecast factors and extablishing the mineralization factors map,forecast factors map and forecast model map . In this area, all these don't do before.3. Deep forecast in Ba Jia Zi Lead-Zince ore. Putting forward 10 forecast principle and three forecast zone and calculate the reserves, there is effects and significance for next phase work this area. |
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