山东平度大庄子金矿发育2种矿化类型:一是蚀变破碎带型矿体,二是多金属硫化物石英脉型矿体。多金属硫化物石英脉型金矿体成矿流体以岩浆水为主,兼有大气降水参与;而蚀变岩型矿体成矿流体为岩浆水与大气降水的混合。石英脉矿化带的流体包裹体均一温度高于蚀变岩型矿化带的均一温度,较深部位的流体包裹体均一温度高于浅部。大庄子金矿目前揭露的矿体处于成矿作用发生时深度较浅、温度相对较低的部位,预测下部仍有较好的工业矿体。
It has been a research subject to timely,safely and effectively extract ore pillars after ore chambers are stoped in open stope mining.Based on blasting experiences in block stoping process of Shouyun Mining Company,crown pillars between mined-out chambers are stoped.The sequence of pillars to be stoped,blasting scheme and characteristics of stoping process are described in detail.The practice displays a safe,effective way to stope crown pillars in the block stoping method with sublevel drilling with 300,000 t of ore being extracted,achieving good social and economical benefits.
With the informatization requirement of metal mine enterprises,Metal Mine ERP is playing an important part to the enterprise management.Lack of generability and pertinence,disunity of data source,are the main shortcoming of the ERP in Metal Mine trade.So cost control theory,component assembly technology based on workflow,fuzzy theory,information fusion,and data warehouse should be applied to build the ERP intelligent system in metal mine trade.
Potouqing fault was the first-grade fracture controlling orebodies,its alterative zones from the hanging wall-rock to the ore-body include potash zone,sericitization zone,silicification zone,pyritation zone etc.The results of REE and elements related to mineralization in Potouqing fault show that REE patterns appear as LREE-rich type,with better fractionation of lighter and heavy REEs and La/Lu=8.37-65.03.Ore-forming fluids have Eu abnormity,withδEu=0.67-1.46 and without Ce abnormity.Au is strongly correlated to Ag,As,Cu,Mo which is the result of the same metallogeny.
With the informatization requirement of metal mine enterprises,Metal Mine ERP is dsigned.Based on the analysis of the design object,system modules,the key factors are emphasized.Firstly,the business process is unstable,so the component composition technology based on workflow should be used to design the system architecture.Secondly,ore grade is important in the whole produce process,so the analysis and evaluation model of ore grade should be built to study the relationship of the ore grade in different period.Thirdly,cost analysis is the core part to enterprise management,so the multi-dimensional model should be built to control the production cost.
According to the ventilation network calculation of Liaoshang mine area,the ventilation system and the working condition under the mine were improved.
作为一种先验模型,地质-地球化学找矿模型强调已知矿床的成矿地质背景、控矿条件、矿床地质特征及找矿标志等研究,以地球化学测量为主要手段,提取综合预测信息,进行有机的关联和置信提取.