Metallogenic Prognosis of Marine Volcanic Type Lead-Zinc Resources in Metallogenic Belt of Northern Qilian Based on GIS Weight of Evidence

详细信息   

• 责任者：Li Jian (Department of Land and Resources of Gansu Province ; Lanzhou 730000 ; China) ; Ding Chengwu
• 刊名：Journal of Lanzhou University (Natural Sciences)
• 出版年：2012
• 卷期：48(4)
• 关键词：铅锌矿床 ; lead-zinc deposit ; 证据权重法 ; evidence weight methods ; 甘肃 ; Gansu Province ; 祁连山 ; Qilian Mountains
• 页码：p.14-19
• 图表：3 illus., 5 tables, 13 refs.
• 分类号：1001
• issnNo：ISSN0455-2059
• isbnNo：CN62-1075/N

摘要

The metallogenic conditions of marine volcanic type lead-zinc resources in the metallogenic belt of northern Qilian Mountains was analyzed by means of GIS. A prognostic model for lead-zinc ore deposits was established and the factors for mineral prediction were extracted and assigned values by graded-WOE. The favorable prospecting areas were delineated. The weighing of prediction of marine volcanic type lead-zinc resources includes strata, magmatite, structure, and other related quantitative factors were determinated. Finally, the study areas were delineated into mineralization prospective zone Ⅰ and Ⅱ by posterior probability values.