Research on Hyperspectral Identification of Altered Minerals in Yemaquan West Gold Field, Xinjiang

Ziwu Pan, Junjie Liu, Liqun Ma, Fengrui Chen, Guchang Zhu, Fen Qin, Hongliang Zhang, Jinting Huang, Yang Li and Juefan Wang
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Ziwu Pan: College of Environment and Planning, Henan University, Kaifeng 475004, China
Junjie Liu: College of Environment and Planning, Henan University, Kaifeng 475004, China
Liqun Ma: College of Environment and Planning, Henan University, Kaifeng 475004, China
Fengrui Chen: College of Environment and Planning, Henan University, Kaifeng 475004, China
Guchang Zhu: Beijing Institute of Geology for Mineral Resources, Beijing 100000, China
Fen Qin: College of Environment and Planning, Henan University, Kaifeng 475004, China
Hongliang Zhang: ChinaRS Geo-informatics Co., Ltd., Beijing 100000, China
Jinting Huang: College of Environment and Planning, Henan University, Kaifeng 475004, China
Yang Li: College of Environment and Planning, Henan University, Kaifeng 475004, China
Juefan Wang: College of Environment and Planning, Henan University, Kaifeng 475004, China

Sustainability, 2019, vol. 11, issue 2, 1-20

Abstract: Predictions of prospectivity based on remote sensing were developed using alteration mineral indicative hyperspectral mapping and remote sensing anomaly filtering, combined with geological characteristics and anomalous mineral field verification. Based on the results of the hyperspectral mineral mapping and the actual geological ground conditions, the results of mapping of altered minerals, such as chlorite, muscovite, kaolinite, and iron oxide were validated, and gold, silver, copper, nickel, and other geochemical anomaly areas were identified for verification work. The results of hyperspectral mineral extraction show that the mineral assemblage closely related to gold deposits in shear zones is muscovite + chlorite + epidote + kaolinite. This alteration mineral assemblage can be used as regional search criteria for shear zone gold mineralisation and was the basis for the discovery of mineralised hydrothermal alteration centres and delineation of four prospective targets. Established on a spectral prospectivity model of the study area, prospective ore-bearing areas have been delineated, which indicate the direction for further geological and mineral resource surveys.

Keywords: HyMap; hyperspectral remote sensing; identification of altered minerals; gold field (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:11:y:2019:i:2:p:428-:d:197922

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