Fault-controlled metasomatic alteration of early Proterozoic sedimentary manganese ore in the Kalahari manganese field, South Africa

J. Gutzmer; N. J. Beukes

doi:10.2113/gsecongeo.90.4.823

Fault-controlled metasomatic alteration of early Proterozoic sedimentary manganese ore in the Kalahari manganese field, South Africa

J. Gutzmer, N. J. Beukes

Geology

University of Johannesburg

Research output: Contribution to journal › Article › peer-review

62 Citations (Scopus)

Abstract

Low-grade Mamatwan-type sedimentation manganese ore has been upgraded to high-grade Wessels-type ore in the Kalahari manganese field. The alteration appears to be of hydrothermal (metasomatic) origin closely related to zones of ferruginization (hematitization) developed along major north-south- and minor east-west-trending normal faults and fractures. The faults and fractures appear to have acted as channelways for the hydrothermal fluid causing metasomatic alteration of the manganese ore. -from Authors

Original language	English
Pages (from-to)	823-844
Number of pages	22
Journal	Economic Geology
Volume	90
Issue number	4
DOIs	https://doi.org/10.2113/gsecongeo.90.4.823
Publication status	Published - 1995

ASJC Scopus subject areas

Geophysics
Geology
Geochemistry and Petrology
Economic Geology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2113/gsecongeo.90.4.823

Cite this

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AB - Low-grade Mamatwan-type sedimentation manganese ore has been upgraded to high-grade Wessels-type ore in the Kalahari manganese field. The alteration appears to be of hydrothermal (metasomatic) origin closely related to zones of ferruginization (hematitization) developed along major north-south- and minor east-west-trending normal faults and fractures. The faults and fractures appear to have acted as channelways for the hydrothermal fluid causing metasomatic alteration of the manganese ore. -from Authors

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Fault-controlled metasomatic alteration of early Proterozoic sedimentary manganese ore in the Kalahari manganese field, South Africa

Abstract

ASJC Scopus subject areas

UN SDGs

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