Spectral characteristics of minerals in alteration zones associated with porphyry copper deposits in the middle part of Kerman copper belt,SE Iran |
| |
| Institution: | 1. Department of Ecology, Institute of Science and High Technology and Environmental Science, Graduate University of Advanced Technology, Kerman, Iran;2. Department of Earth Sciences, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran;3. Departamento de Mineralogía y Petrología, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Bilbao, Apdo. 644, E-48080, Spain;1. Department of Earth Science, Shahid Beheshti University, Tehran, Iran;2. Geological Survey of Iran, Tehran, Iran;3. Department of Geology, University of Tehran, Tehran, Iran;4. Department of Earth Sciences, University of New Brunswick, Fredericton, Canada;5. Department of Geology, Faculty of Earth Science, Kharazmi University, Tehran, Iran;6. National Iranian Copper Industries Co, Sarcheshmeh, Iran;1. Université de Poitiers, CNRS UMR 7285 IC2MP, HydrASA Bât. B35, rue Michel Brunet, 86022 Poitiers Cedex, France;2. Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 7590 IMPMC, 4 Place Jussieu, 75005 Paris, France;3. Université de Nantes - CNRS UMR 6112 Laboratoire de Planétologie et Géodynamique (LPG), 2 rue de la Houssinière, 44322 Nantes, France;4. LA MANCHA Services France, 4-14, rue d''Aguesseau, 75008 Paris, France;1. Department of Earth Sciences, Faculty of Sciences, Shiraz University, Shiraz, Iran;2. Department of Geology, Faculty of Sciences, Shahid Chamran University, Ahvaz, Iran |
| |
| Abstract: | Visible near infrared and shortwave infrared (VNIR-SWIR, 350 to 2500 nm) reflectance spectra obtained from an analytical spectral device (ASD) have been used to define alteration zones adjacent to porphyry copper deposits (PCDs), in the central part of Kerman magmatic arc, SE Iran. The spectral analysis identified sericite, illite, halloysite, montmorillonite, dickite, kaolinite, pyrophyllite, biotite, chlorite, epidote, calcite, jarosite, and iron oxyhydroxides (e.g. hematite, goethite) of hydrothermal and supergene origin. Identified alteration zones are classified into six principal types namely phyllic, phyllic/propylitic, propylitic, potassic, argillic and advanced argillic. The iron oxide minerals in the oxidized zone were also identified using spectral analysis. Results of spectral analyses of samples are consistent with mineralogical data obtained from X-ray diffraction (XRD) and petrographic studies. Spectroscopic studies by ASD demonstrate that this tool is very useful for semi-quantitative and cost effective identification of different types of alteration mineral assemblages. Furthermore, it can provide a valuable tool for evaluating aerial distribution of alteration minerals while coupled with remote sensing data analysis. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
