The research on the geological feature and mineralization age of Xiejiagou gold deposit,shows that Au is mostly included in pyrite, chalcopyrite, etc. in the pattern of fine grain. The ores are strongly sericitized and silicified, and there is often potassic alteration of different degree. Therefore, it is a classic fracture- altered rock- type gold deposi.t The result of systematic K- Ar age measurement on rocks of the gold deposit, indicates that the mineralization age of Xiejiagou gold deposit is 105-130 Ma which is in accordance with the common Au- mineralization age of Jiaodong area. We can think that they are the result of the same magmatic event .The mineralization age is same as the rock- forming age of Guojialing granite, so there is maybe genetic relation between Au- mineralization and Guojialing granite.
This paper analyzed the variety trend and characteristics of the thickness and the grade of main orebody in Jiaojia gold mine, and made the quantification to its change. The variety coefficient of thickness is 31.7% - 123.7% , namely " comparative unstable" ; and the variety coefficient of grade is smaller than 93% , and general is 27.5% - 85.3% , namely the distributing of useful component is " uniformity". The variety tendency of the thickness and the grade is big in direction of tilt than strike slightly.
Middle-sized tin ore bed of tobe living into on the mine belt main introduces large copper mine of plentiful channel of copper, middle-sized copper mine of competition what embankment and day LongGou feature. Such contributing factor for mall in the interest of HuaLixi stage the marine facies volcanic rock moulds, the formation marine facies volcanic rock succeed mine set.
It is considered by the anthors that gold mineralization of altered rock controlled by near SN or NNW trending, closely spaced fissure zone is the major target for ore prospecting in the mine and silicification and sericitization are important ore prospecting indicators.
The occurrence regularity of rich pocket is summarized by describing. Analyzing geological feature of one body and geological feature of rich pocket. The placewhere structures overlap and mylonite spaciously swells, is always good for rich pocket deposited. Its presentational feature is development of structure and enrichment of granule xenomorphic sulfides.
Based on the penetrate into study, the paper systematically analyzed and summarized the application on the cemented stowing of digging groove and clot of injection in the horizontal sub-level mining. According to compare proof by sufficiency, operating efficiency, intention of labor of cemented stowing ,we draw the conclusion that cement stowing of separate wall have a series of advantage,such as facility, high efficiency , good quality , decrease every sub-levelmining period and poverty rate etc . Thereby it is verified that cemented stowing of separate wall is efficacious in the mine that mining method is horizontal sub-level mining.
By trend analyse theory, this text studying the data of elctrification for the first time, and expatiate its' characteristic in a nutshell.Throughing physical model and example, explain the feasibility and advantage of electricize residual analyse. The older method, the newer process that combined with each other would increase the power-energy of this charge upmethod.
The paper systematically expatiated the application of etrex GPS in Stream sediment survey o f 1:50000 and attention in the use.
This article narrated engineer survering center for reduces the measure which the projection distorted adopts, to the related reference ellipsoid parameter projecting plane, the length calculated and so on the question carried on the discussion, enumerated the related formula, and carried on trial calculates with compared.
This article uses the idea of modern quality control to analyse to the operation management of the mining company, hope to improve the product quality through the scientific management method of the Total Quality Management.
This article mainly introduces the functions and development trend for the logistics center,and some problems about planning design must be considered in the future. Meanwhile, it points out planning design of the logistics center will have great effect on regional economy. We must make much of it.
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