| 多龙矿集区控矿构造信息提取、识别与融合 |
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| 关键词:Bangong Co–Nujiang suture zone anomaly network pattern self-similarity Duolong ore concentration area |
| 基金项目:国家自然科学基金项目(编号: 41402295);中国地质调查局项目(编号: DD20160026; DD20179142);国家自然科学基金重点项目(编号: 41430320);国土资源部公益性行业科研专项(编号: 201511017) |
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| 摘要: |
| Geo-information Extraction and Integration of Ore-controlling Structure in the Duolong Ore Concentration Area of Tibet |
| The study area, Duolong ore concentration area of Tibet, is not a well-developed area; nevertheless, it has received attention in recent years due to its considerable production of Cu-Au resources. In this study, the authors utilized fractal/multifractal analytical techniques to gain insights into the geological environment and metallogenesis of ore deposits so as to guide mineral exploration in this area. Porphyry Cu-Au mineralization related elements and fault-activity indicator elements from geochemical data of stream sediments were integrated by principal component analysis, and the results were further analyzed by spectrum-area model. Identified geochemical anomalies spatially coincident with structural framework not only imply the presence of mineralizdation but also suggest genetic relationship between mineralization and regional fault structures. This study inferred network structural control on porphyry mineralization, and identified background geochemical patterns of multi-element association by fractal/multifractal analyses, which further provides indirect and/or proxy geo-information of the network structure for supporting mineral exploration in the Duolong ore concentration area. |
| LIU Zhi-bo,WANG Wen-lei,SONG Yang,WANG Qin.2017.Geo-information Extraction and Integration of Ore-controlling Structure in the Duolong Ore Concentration Area of Tibet[J].Acta Geoscientica Sinica,38(5):803-812. |
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