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Study on Ore-controlling Structures Analysis and Fractal Dynamics of Xincheng Gold Deposit in Jiaodong

Author: ChenXiaoLong
Tutor: YangXingKe
School: Chang'an University
Course: Structural Geology
Keywords: Xincheng Gold Mine Structural Control of Ore Tectonogeochemical Metallogenic depth estimates Fractal dynamics
CLC: P618.51
Type: Master's thesis
Year: 2010
Downloads: 233
Quote: 9
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Abstract


The Jiaodong region is important gold producing area in China, while the Orefield Jiaojia Xincheng Gold Mine nationally known Jiaojia type \a lot of research work, and on this basis, continue to find new mineral reserves, generate considerable economic benefits for the mine. This article in the collection and compilation of previous data on the basis of relying on the national crisis mines resources prospecting new technologies and new methods project - Linglong Gold Mine and Xincheng Gold Mine Deep forecast ore field structure research and demonstration funding and technical guidance Xincheng Gold Mine several site visits by systematic observation of the surrounding rock and ore body in the middle section of the underground New Digging sampling test analysis, statistics JOINTED occurrence and distribution, with particular attention on the conjugate fissures identification and measurement statistics, software and mathematical geological methods to mine existing data and data processing, relative to the classical research methods of structural geology study of ore deposits and metallogenic dynamics research methods and mineralization depth structural correction calculation method Xincheng Gold Mine of ore-controlling structure parsing, inversion recovery paleostress field size of occurrence and differential stress obtained Xincheng Gold Mine of rock and ore depth data and mineralization enrichment kinetics, the following understanding: constructed system of Xincheng Gold mineralization how level control role in the unified regional stress field, exhibit the characteristics shared by the different scales structure, but different levels of structure, they have different tectonic style combination, through systematic observation of wild and trenches constructed to study the tectonic zone of kinematic characteristics, the use of joints analysis and conjugate joints geostress, and clear the preferred orientation of the long axis of the preferred orientation of the orebody JOINTED fit, and restore the occurrence of the tectonic stress field; combination of form and deformation process of rock deformation temperature and pressure changes on the basis of the analysis in the indoor microscopic structure and tectonic rock group, the use of the fee's Desk rock group analysis means of stress and strain on the mine tectonite group mode are discussed, and microscopic dislocation density method and dynamic recrystallization particle method estimates paleostress differential stress value of 86 106 MPa ,66.6-135 .6 MPa; quarried rock samples geochemistry and geochemical analysis, as well as the composition of fluid inclusions study to examine the process of ore-forming hydrothermal activity, coupled component migration with stress field between the ore-forming elements correlation combinations demonstrated by the leading edge of the halo and the characteristics of the ore body halo. By isotope dating of Xincheng Gold Mine late hydrothermal alteration time limit, get the value of 85.7 ± 0.84 Ma age of late hydrothermal role. Dislocation density measured pressure and a bit of fluid inclusions estimates ancient ancient differential stress based researcher Lu Guxian correct-by-construction estimation method, for the first time on the depth of Xincheng Gold mineralization is estimated metallogenic depth : 1781.29m; Xincheng Gold Mine at different levels of the different scale fractal structure and different middle and deep drilling grade gold values ??of fractal draw Xincheng Gold Mine guide ore, ore, ore constructed system element activation, migration, enrichment of the mass transport system has a self-similar fractal structure, tectonic mineralization system has a non-linear characteristics of fractal dynamics.

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CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Precious metals > Gold
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