Mineralogical domains within gold provinces
| Autor: | G. N. Phillips, M. J. Hughes |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Applied Earth Science. 124:191-204 |
| ISSN: | 1743-2758 0371-7453 |
| Popis: | Mineralogical domains use hypogene minerals (i.e. minerals not modified by weathering) and related geochemical characteristics of mineral occurrences, not only ore deposits, to subdivide large mineralised regions. Their use in the Victorian gold province is described using readily available historical data and field checking, and this is a scheme that has not required modification since 1997.The Victorian province is typical of sediment-hosted hydrothermal ores in metamorphic terrains (often termed orogenic gold deposits). Five distinctly different mineral assemblages are used to subdivide all Victorian gold occurrences into eight domains up to hundreds of kilometres in length and tens of kilometres in width. These parallel the regional structural trend and most are closely associated with, or sharply bounded by, major regional-scale faults. Seismic work has shown these faults to be listric thrusts, which flatten into a zone of duplexed greenstones overlying older basement rocks in the deeper crust.Althou... |
| Databáze: | OpenAIRE |
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