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The deportment of manganese in the Gamsberg East orebody South Africa
Dissertation (MSc)--University of Pretoria, 2015.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2016
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| _version_ | 1867613595853914112 |
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| access_status_str | Open Access |
| author2 | Merkle, R.K.W. (Roland Karl Willi), 1954- |
| author_browse | Merkle, R.K.W. (Roland Karl Willi), 1954- |
| author_facet | Merkle, R.K.W. (Roland Karl Willi), 1954- |
| collection | Thesis |
| dc_rights_str_mv | © 2016, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc)--University of Pretoria, 2015. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/53531 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:38:39.160Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/53531 The deportment of manganese in the Gamsberg East orebody South Africa Merkle, R.K.W. (Roland Karl Willi), 1954- amoses@blackmountain.co.za Moses, Mokete UCTD Gamsberg East orebody South African manganese deposits Ore characterization Stratigraphy Manganese deportment Natural and agricultural sciences theses SDG-08 Natural and agricultural sciences theses SDG-09 Natural and agricultural sciences theses SDG-12 Dissertation (MSc)--University of Pretoria, 2015. The Gamsberg East orebody is the least studied orebody of the Gamsberg zinc (Zn) deposit. The Gamsberg Zn deposit is a largest undeveloped Broken Hill-type deposit, which is well known for relatively low zinc grade as well as manganese (Mn) being a problem and penalty element. The occurrence of manganese within the sphalerite crystal lattice is one of the reasons for the lack of mining development over the past three decades. The recent metallurgical test works of the Gamsberg East ore showed that alabandite floats faster than sphalerite and this adds to the Mn penalty factor. Alabandite (MnS) was first reported as trace concentrations, but it was most recently found in anomalous concentrations in the Gamsberg East orebody. Up to 16 %wt alabandite occurs within the pelitic schist of the Gams Formation, and concentrations below 2 %wt occur within the top half of meta-pelite ore. The occurrence of alabandite is also associated with thicker or well developed portions of the ore horizon, which is also associated with manganese enrichment. The model of formation for alabandite is similar to that of sphalerite and Fe-sulphides during metal-sulphide formation in the Gamsberg Zn deposit. Alabandite is therefore pre-metamorphic and its formation is controlled by change in redox water conditions from chemogenic to detrital facies, sulphur fugacity, change in pH and hydrothermal fluids with temperature less than 300 °C, rich in manganese and iron but poor in zinc. Manganese is also hosted in silicate and oxide minerals, such as by pyrophanite, jacobsite, franklinite, amphiboles, micas, pyroxenes/pyroxenoids, and garnets. bs2026 Geology MSc Unrestricted SDG-09: Industry, innovation and infrastructure SDG-08: Decent work and economic growth SDG-12: Responsible consumption and production 2016-07-01T10:33:24Z 2016-07-01T10:33:24Z 2016-04-05 2015 Dissertation Moses, M 2016, The deportment of manganese in the Gamsberg East orebody South Africa, MSc Dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/53531> A2016 http://hdl.handle.net/2263/53531 en © 2016, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Gamsberg East orebody South African manganese deposits Ore characterization Stratigraphy Manganese deportment Natural and agricultural sciences theses SDG-08 Natural and agricultural sciences theses SDG-09 Natural and agricultural sciences theses SDG-12 The deportment of manganese in the Gamsberg East orebody South Africa |
| title | The deportment of manganese in the Gamsberg East orebody South Africa |
| title_full | The deportment of manganese in the Gamsberg East orebody South Africa |
| title_fullStr | The deportment of manganese in the Gamsberg East orebody South Africa |
| title_full_unstemmed | The deportment of manganese in the Gamsberg East orebody South Africa |
| title_short | The deportment of manganese in the Gamsberg East orebody South Africa |
| title_sort | deportment of manganese in the gamsberg east orebody south africa |
| topic | UCTD Gamsberg East orebody South African manganese deposits Ore characterization Stratigraphy Manganese deportment Natural and agricultural sciences theses SDG-08 Natural and agricultural sciences theses SDG-09 Natural and agricultural sciences theses SDG-12 |
| url | http://hdl.handle.net/2263/53531 |