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The orebody may be tabular in shape, which lends itself to certain types of mining, or it may be a big amorphous blob, or perhaps the ore is contained in sinuous veins. These shapes, in …
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As a rule, the extraction techniques with ore shrinkage, use of expansion-type support and worked-out area stowing applied in the process of thin-vein steeply inclined deposits mining, …
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a. Open-Pit Mining: In situations where scheelite deposits are near the surface and the ore body is large and easily accessible, open-pit mining may be employed. This method …
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A general name for the occurrence of ore bodies, hydrogeology, engineering geology, environmental geology, and other factors that affect the selection of main technical …
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Mining, the Environment, and Politics; A mineral deposit is a place in Earth's crust where geologic processes have concentrated one or more minerals at greater abundance than …
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complete ore mass delivery using the blasting force. Originality. New dependences have been revealed for the conditions of the Akbakai deposit: logarithmic – the value of di-lution …
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The geological factors affecting the shape and occurrence of the ore body are mainly the stratum, structure, lithologic conditions, metallogenic mode, tectonic activity after …
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The objectives of this study are, (1) To investigate the geology and geotechnical properties of the ore body, (2) To evaluate the feasible ore-body characteristics, …
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The porphyry Cu deposits (PCDs) provide approximately 60 %–70 %, 95 %, and 20 % of the world's copper, molybdenum, and gold reserves, respectively, thus having a high …
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The authors of the paper present calculation of stresses in rock mass under sublevel stoping depending on the type of the geosphere and on the depth of the ore body occurrence. …
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85 The in ª uence of geology and ore deposit occurrence conditions on dilution indicators of extracted reserves The Mining-Geology-Petroleum Engineering Bulletin and the authors ©, …
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Components of geostatistical estimation, developed as a method for ore deposit assessment, are discussed in detail. The assumption that spatial observations can be treated …
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To ensure the safety of underground mining, a certain width of the ore body is usually left on one or both sides of a large fault or fracture zone as a protection pillar. The …
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This study unveils the principal controlling factors governing the distribution of ore bodies (sphalerite) within a defined fault-fold structure. ... 2016), ielevant details are excluded …
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Copper and gold have between 5 and 10% while nickel has only 1.7% in the highest 10% grade percentile. Keywords Ore grades. Environmental impact. Mineral availability. Mineral deposits …
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the ore to an appropriate site (fluid such as H 2O, biological and/or mechanical means), (3) depositional mechanism that puts together the ore components into ore minerals, and (4) …
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When it is difficult to judge the advantages and disadvantages technically and economically due to the constraints of various factors such as ore body occurrence conditions, …
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contribute to the fractured and weakened nature of both the ore and the host rocks in the environment surrounding the block caving operation. Other features of the geology that are …
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When asked to lecture at Bendigo on the geological factors that determine the depths of ore deposits, I hesitated for a little before agreeing to lecture on. ... when the …
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The field observations of the ore bodies like their mode of occurrence and relationship with the host rocks, their relation with the regional stratigraphy and structures give the first hand …
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Question: Factors that determines whether an ore body can be mined at a profit are:• The value of the deposit• Kind of deposit• Extent of deposit• Depth of deposit• Structure of …
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While ESG factors affect the value of a resource, our analysis ties ESG factors to the orebody, and conceptualises them as risks to project development. ... Some of the largest …
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As a typical representative of its type, it provides an opportunity to study the occurrence, distribution, and factors controlling cobalt in these deposits. Cobalt-bearing ores in …
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A reasonable and stable stope structure is the premise of realizing safe mining of underground metal ore. To safely mine the gently inclined medium-thick ore body, stope stability in Bainiuchang ...
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This paper is dedicated to research into the geological peculiarities, shape of the ore body and the occurrence of the host rocks in the hanging wall of the Pivdenno-Biloz-erske …
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To find relationships between geology, ore-body genesis, and rock mass characteristics in mines that employ block caving mining techniques in order to better understand the geological …
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In view of the fact that the original Micromine block model is not universal in Surpac, the Surpac format conversion analysis is carried out while retaining the original data unchanged, so as to …
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The overall occurrence of the ore body in the contact zone is consistent with that of the contact zone, but it is locally unstable and changes greatly. ... the primary outcrop ore …
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Jun-Yi Pan, Pei Ni, Zhe Chi, Yu-Long Yang, Su-Ning Li, Tan Bao, Wen-Bin Wang, Wencan Zeng, Kai Xue; Spatial distribution and variation of ore body, alteration and ore …
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When designing stope structural parameters, we should consider the occurrence of ore body, geological structure, and rock mass quality as well as fully analyze the impact of mining stress induced by deep mining on …
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