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Analysis of Ore-forming Geological Conditions and Metallogenic Prediction of Yinan Gold Deposit Based on GIS

Author: XiangZhongLin
Tutor: GuXueXiang
School: Chinese Geology University (Beijing)
Course: Mineral prospecting and exploration
Keywords: GIS Metallogenic prediction Crisis mine Synthetic information prediction 3D digital deposit modeling
CLC: P208
Type: Master's thesis
Year: 2008
Downloads: 411
Quote: 4
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Abstract


With the deepening of the geoscience research and exploration work, crisis mines have accumulated vast amounts of geoscience data, mineral exploration has entered a new era of information prospecting, GIS as a spatial information processing technology, its unparalleled advantages become Source Geographic Information Integration Management and mineralization information extracted and integrated a powerful tool. This paper uses modern emerging technologies GIS mineralization geological conditions of the deposit model based on three-dimensional digital analysis based on multi-source information through the integrated management of complex geoscience data (geological, remote sensing, geophysical and geochemical exploration data), integrated predicted mine deep edge mineralization forecast, Shandong Yinan Gold Mine prediction target discovery and evaluation to provide a new method or means. Mainly includes the following aspects: (1) According to the engineering drilling data mine exploration area, through the the Surpac environment under the three-dimensional digital deposit modeling, intuitive reproduction the mineralization space strata, rock and tectonic orebody space relations and distribution of the ore body shape rules, explore 3D digital deposit modeling methods and processes to complete mineralization geological conditions of the mine. The analysis indicates that the orebody generally along the pluton intrusive contact boundary of the Cambrian strata, fracture zones and layer detachment zone occurrence The pluton, stratigraphy, structure is the main controlling geological factors. (2) in based on grasp metallogenic regular, develop the predictive criteria, GIS provides powerful spatial analysis, data processing and a rich graphical expression function to complete the geological, geophysical, geochemical anomaly information extraction and analysis, the establishment of a comprehensive information prediction model using the analytic hierarchy process and fuzzy logic combined to complete the delineation of the the forecast target area of ??the workspace of GIS-based multi-source information metallogenic prediction methods and processes. (3) demand for the features and functions of the mine forecast data the way components MapObjects2.2 Visual Basie6.0 secondary development the the metallogenic prediction system based on GIS \integrated multi-source data management and maintenance, the the source mineralization information extraction and analysis, to explore the the metallogenic prediction system based on GIS design and development process. (4) GIS Application by Yinan Gold Mine prediction project to explore the process and methods in the application of GIS in crisis mines large-scale mineralization forecast, by the GIS the introduction, greatly improving the efficiency of of metallogenic information extraction and comprehensive analysis, crisis mine \

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