RU2013132991A - METHOD FOR FORECASTING HIDDEN ORE MINING ASSOCIATED WITH GRANITOIDS - Google Patents
METHOD FOR FORECASTING HIDDEN ORE MINING ASSOCIATED WITH GRANITOIDS Download PDFInfo
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Abstract
Способ прогноза скрытого оруденения, связанного с гранитоидами, характеризующийся тем, что для перспективных рудоносных участков осуществляют на базе данных по физическим свойствам пород, слагающих модельный разрез, и материалов мелкомасштабных гравиразведочных и магниторазведочных съемок построение «нулевой» глубинной модели, в виде глубинных разрезов, в которых всем выявленным телам присваивают соответствующие интервалы изменений плотностных и магнитных характеристик, после чего путем решения серии обратных задач осуществляют в интерактивном режиме подбор глубинной модели, в процессе которого меняют как форму отдельных тел модели, так и их физические параметры (плотность и намагниченность) до практически полного совпадения расчетных гравитационного и магнитного полей с наблюденными, полученное неоднородное распределение плотности пород и намагниченности интерпретируют, используя эталонные генетические модели рудно-магматических систем, с построением геолого-геофизических разрезов, в которых по резкой смене или по смещению изолиний полей плотности и намагниченности выделяют крупные разломы и области низкоплотных немагнитных пород, как остаточные очаги котектических гранитов (источников флюидов, рудного вещества и энергии), а отходящие от них апофизы оконтуривают, как прогнозируемые зоны рудоотложения.A method for predicting hidden mineralization associated with granitoids, characterized in that for promising ore-bearing areas, a “zero” depth model is constructed in the form of deep sections, using the data on the physical properties of the rocks composing the model section, and materials from small-scale gravity and magnetic exploration surveys which all identified bodies are assigned the appropriate intervals of changes in density and magnetic characteristics, after which, by solving a series of inverse problems, In the interactive mode, the selection of the deep model, during which both the shape of the individual bodies of the model and their physical parameters (density and magnetization) are changed until the calculated gravitational and magnetic fields coincide with the observed ones, the obtained heterogeneous distribution of rock density and magnetization is interpreted using standard genetic models of ore-magmatic systems, with the construction of geological and geophysical sections, in which, according to a sharp change or shift of the isolines of the density and density fields ness isolated major faults and low-density nonmagnetic field rocks as residual foci cotectic granites (sources fluids ore material and energy), and extending from them apophyses contoured as projected ore deposition zone.
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RU2013132991/28A RU2539838C1 (en) | 2013-07-16 | 2013-07-16 | Method of predicting blind ore body associated with granitoids |
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CN109711597A (en) * | 2018-11-14 | 2019-05-03 | 东莞理工学院 | A kind of Copper-nickel Sulfide Ore Deposit metallogenic prognosis method based on stratified random forest model |
CN114488344A (en) * | 2022-02-24 | 2022-05-13 | 核工业北京地质研究院 | Gravity-magnetic three-dimensional inversion method and system for hydrothermal uranium mineralization environment detection |
CN114814978A (en) * | 2022-04-15 | 2022-07-29 | 中国地质科学院矿产资源研究所 | Granite area tungsten-tin ore exploration method based on multiple depth scales |
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CN110888176B (en) * | 2019-10-25 | 2021-05-07 | 东华理工大学 | Ore finding method by utilizing ground high-precision gravity measurement |
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RU2364895C1 (en) * | 2007-12-17 | 2009-08-20 | Горный институт Уральского отделения Российской академии наук (ГИ УрО РАН) | Method for multicomponent gravimetric modeling of geological medium |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109711597A (en) * | 2018-11-14 | 2019-05-03 | 东莞理工学院 | A kind of Copper-nickel Sulfide Ore Deposit metallogenic prognosis method based on stratified random forest model |
CN114488344A (en) * | 2022-02-24 | 2022-05-13 | 核工业北京地质研究院 | Gravity-magnetic three-dimensional inversion method and system for hydrothermal uranium mineralization environment detection |
CN114814978A (en) * | 2022-04-15 | 2022-07-29 | 中国地质科学院矿产资源研究所 | Granite area tungsten-tin ore exploration method based on multiple depth scales |
CN114814978B (en) * | 2022-04-15 | 2023-01-31 | 中国地质科学院矿产资源研究所 | Granite area tungsten-tin ore exploration method based on multiple depth scales |
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