層次分析法在冀北地區(qū)多金屬礦找礦預(yù)測中的應(yīng)用
[Abstract]:The tectonic units in northern Hebei include the North China continental block, Tianshan-Xingmeng orogenic system and eastern China orogenic rifting system. Archean metamorphic rocks are widely distributed in the area, magma intrusions in Hercynian and Yanshanian periods, frequent eruptions, and wall rock alteration. Is a favorable area for looking for polymetallic minerals. Based on the analysis of remote sensing geological interpretation elements, the relationship between alteration remote sensing anomalies and mineralization, the line, ring and alteration remote sensing anomalies, intrusive rocks, ore-bearing strata and mineral distribution information are taken as judgment factors. The prediction model of ore prospecting is established by using AHP, and 29 ore-prospecting target areas are formed. Among them, 5 large and super large ore deposits have been found in 3 prospecting target areas and 12 medium-sized deposits have been found in 6 prospecting target areas. The results show that the application of analytic hierarchy process (AHP) in prospecting prediction of polymetallic deposits and delineation of prospecting targets in the north of Hebei Province has good practicability.
【作者單位】: 河北省遙感中心;
【基金】:中國地質(zhì)調(diào)查局地質(zhì)調(diào)查項目“河北省礦產(chǎn)資源潛力評價”(編號:1212011121001)資助
【分類號】:P618.2;P627
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