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Prospecting Direction And Geological Characteristics Of Jinjiawu Gold Deposit In Northeastern Jiangxi

Posted on:2014-11-06Degree:MasterType:Thesis
Country:ChinaCandidate:S P LiaoFull Text:PDF
GTID:2180330461960508Subject:Structural geology
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Gold is one of the earliest metals that discovered and used. Because of extremely rare and precious, it has always been a symbol of wealth and power. Gold deposit in Jinjiawu was found by geophysical and geochemical exploration Team that Jiangxi Bureau of Geology and Mineral resources Exploration, Developed during geophysical and geochemical anomaly investigation. Through many years of geological work, we have accumulated rich first-hand information. Based on the systematic analysis of regional geological background, mining-area geological features and deposit geological characteristics, we can make full advantage of research results,explore ore genesis, regional metallogenic conditions, sources of ore-forming materials, structural conditions, geophysical and geochemical conditions of ore-forming, ore-controlling structures and distribution laws of the ore-bodies in three-dimensional space predict prospecting perspective and propose next prospecting direction.Based on the geological characteristics of the deposit study, we assume that the gold deposit in Jinjiawu is controlled by a set of brittle—ductile shear zone which nearly east-west direction, the zone has been delimited three basic parallel altered fracture zone, the orebody is located in three altered fracture zone.. We can think it belongs to meso-epithermal deposit and The metallogenic sources come from surrounding rocks-The third petrofabric of Shangqiaoshan Upper sub-group, ore-forming hydrothermal solution originates from metamorphic hydrothermal solution and underground thermal water. Mineralization can be divided into two stages: Metamorphic metallogenic stage, hydrothermal solution dissolves the gold of country rocks during transportation process, and it flows to the fissure or slippage part, then gold is formed under appropriate conditions. With the influence of geothermal, it drives the circulation of underground hot water, extract parts of ore-forming materials to make it move along early ore-bearing fracture zones, superimpose ores at the structure transitions and other favourable positions during metallogenic stage of Superposition of underground hot water. It is a superior area for mineralization. it is predicted that it has a great perspective potential in deep and outside. The nearly east-west direction fractured-altered zone that through the mine is a migration pathway of ore-bearing hydrotherm solution and ore storage space of the deposit, controlling the shapes and occurrences of the orebodies. According to the structures lateral plunging direction, we deem that the ore-bodies continue to the deep of the northwest, and the middle of the altered fractured zone would become the best position for ore-forming.
Keywords/Search Tags:gold deposit, metamorphic hydrothermal solution, perspecting direction, northeast of Jiangxi
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