| Reference Type | Journal (article/letter/editorial) |
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| Title | Sulphidation in the Witwatersrand Goldfields: evidence from the Middelvlei Reef |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Myers, Russell E. | Author |
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| Zhou, Taihe | Author |
| Neil Phillips, G. | Author |
| Year | 1993 (September) | Volume | 57 |
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| Issue | 388 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_57/57-388-395.pdf+ |
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| DOI | doi:10.1180/minmag.1993.057.388.04Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 1936 | Long-form Identifier | mindat:1:5:1936:5 |
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| GUID | 0 |
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| Full Reference | Myers, Russell E., Zhou, Taihe, Neil Phillips, G. (1993) Sulphidation in the Witwatersrand Goldfields: evidence from the Middelvlei Reef. Mineralogical Magazine, 57 (388) 395-405 doi:10.1180/minmag.1993.057.388.04 |
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| Plain Text | Myers, Russell E., Zhou, Taihe, Neil Phillips, G. (1993) Sulphidation in the Witwatersrand Goldfields: evidence from the Middelvlei Reef. Mineralogical Magazine, 57 (388) 395-405 doi:10.1180/minmag.1993.057.388.04 |
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| In | (1993, September) Mineralogical Magazine Vol. 57 (388) Mineralogical Society |
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| Abstract/Notes | AbstractThere is extensive textural evidence for sulphidation in the Middelvlei Reef of the Carletonville Goldfield, South Africa. Secondary iron sulphides have replaced sand- and pebble-sized elasts in conglomerate, as well as matrix material in both conglomerate and quartzite. Within the Middelvlei Reef there is a close correspondence between the intensity of sulphidation and areas of greater modal muscovite, and there is less sulphidation where chloritoid dominates. Both pyrite and minor pyrrhotite are widespread. The timing of the sulphidation appears to be post-depositional but the relative importance of diagenetic and syn-metamorphic processes cannot be determined using textural criteria. The absence of retrograde effects suggests that sulphidation occurred prior to or during peak metamorphism. The distribution and intensity of sulphidation and phyllosilicate alteration indicate that these processes may be more significant in the Witwatersrand than has generally been thought. These processes should be considered in all future genetic models. |
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