Hydrothermal iron oxide-Cu-Au (IOCG) mineralization at the Jalal-Abad deposit, northwestern Zarand, Iran
| Autor: | Behrouz Karimishahraki, David Banks, Behzad Mehrabi, Adrian J. Boyce, Bruce W. D. Yardley |
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| Rok vydání: | 2019 |
| Předmět: |
Arsenopyrite
Mineralization (geology) Chalcopyrite 020209 energy Geochemistry Geology 02 engineering and technology engineering.material 010502 geochemistry & geophysics Iron oxide copper gold ore deposits 01 natural sciences Bismuthinite Actinolite chemistry.chemical_compound chemistry Geochemistry and Petrology visual_art 0202 electrical engineering electronic engineering information engineering visual_art.visual_art_medium engineering Economic Geology Pyrite 0105 earth and related environmental sciences Magnetite |
| Zdroj: | Ore Geology Reviews. 106:300-317 |
| ISSN: | 0169-1368 |
| Popis: | The Jalal-Abad iron oxide ± Cu ± Au ± Bi ± Co deposit is hosted in Early Cambrian volcanosedimentary units (CVSU) of the Kashmar–Kerman zone, Central Iran. Magnetite is the main ore mineral at depth and is associated with Na-Ca rich alteration, dominated by actinolite. Magnetite compositions (EPMA) are very low in TiO2 (0.03–0.07 wt%), V2O3 (0.02–0.06 wt%) and CoO (0.01> to 0.42 wt%). At intermediate to shallow levels potassic alteration is associated with chalcopyrite, pyrite, arsenopyrite, cobaltite, bismuthinite and gold. The mineralization occurs in massive, breccia matrix, open space filling, disseminated and vein-like styles. Gold occurs as small inclusions ( |
| Databáze: | OpenAIRE |
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