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The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif - Henkries - Steinkopf)
Dissertation (MSc)--University of Pretoria, 2007.
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University of Pretoria
2013
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| _version_ | 1867613702995312640 |
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| access_status_str | Open Access |
| author2 | Theart, H.F.J. |
| author_browse | Theart, H.F.J. |
| author_facet | Theart, H.F.J. |
| collection | Thesis |
| dc_rights_str_mv | © 2006, 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, 2007. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/30531 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:40:21.476Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| 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:2263/30531 The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif - Henkries - Steinkopf) Theart, H.F.J. hminnaar@lantic.net Minnaar, Hendrik Henkries Steinkopf Deposits Pegmatite Exploitability Area Orange river Settlements Vioolsdrif Lower UCTD Dissertation (MSc)--University of Pretoria, 2007. This study aims to investigate the exploitability of the pegmatite deposits in the lower Orange River area, situated between the settlements of Vioolsdrif, Henkries and Steinkopf in the Northern Province, in the light of current methods of financial analysis. A summary of the prevailing ore deposit model and a description of the geology are presented, and a financial analysis is undertaken taking into account the resources, current market conditions, and the legal requirements associated with a mining venture on the pegmatite bodies. The most acceptable ore deposit model for the formation of pegmatites currently presents the pegmatite body as the final stage of crystallization of a cooling magma (Cerny, 1998a). Recent studies suggest that the crystallization of the pegmatite occur at an unexpectedly fast rate by the working of undercooling, in which the rate of cooling exceeds the rate of crystallization (London, 2005). The pegmatites of the study area are mostly developed in granites of the Vioolsdrif Suite, in a post-orogenic tectonic setting and in many respects, fit well into the model of Ginsburg et al. (1979). Although resources are difficult to estimate, it can be said that individual pegmatite bodies in the study area host reserves of up to 50 Mt of pegmatite ore. The markets for feldspar, currently the primary commodity in pegmatites, show an increase in price and a positive outlook for the future. Legal requirements (licensing) are rigorous, under the new Act even more so than under the old, especially with regard to environmental issues. A financial analysis suggests that, although mining operations on pegmatite bodies are highly sensitive to changes in commodity prices, revenue and fuel-related expenses, they are feasible under the current market conditions. Zebrakop pegmatite is identified in this study as a potential target for the exploitation of a homogeneous pegmatite, coupled with the necessary development of bulk mining methods and a beneficiation plant. Geology Unrestricted 2013-09-07T19:18:50Z 2007-02-21 2013-09-07T19:18:50Z 2006-04-24 2007-02-21 2007-02-21 Dissertation Minnaar, H 2006, The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif - Henkries - Steinkopf), MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/30531 > http://hdl.handle.net/2263/30531 http://upetd.up.ac.za/thesis/available/etd-02212007-143602/ © 2006, 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 | Henkries Steinkopf Deposits Pegmatite Exploitability Area Orange river Settlements Vioolsdrif Lower UCTD The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif - Henkries - Steinkopf) |
| title | The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif - Henkries - Steinkopf) |
| title_full | The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif - Henkries - Steinkopf) |
| title_fullStr | The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif - Henkries - Steinkopf) |
| title_full_unstemmed | The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif - Henkries - Steinkopf) |
| title_short | The exploitability of pegmatite deposits in the lower Orange River area (Vioolsdrif - Henkries - Steinkopf) |
| title_sort | exploitability of pegmatite deposits in the lower orange river area vioolsdrif henkries steinkopf |
| topic | Henkries Steinkopf Deposits Pegmatite Exploitability Area Orange river Settlements Vioolsdrif Lower UCTD |
| url | http://hdl.handle.net/2263/30531 http://upetd.up.ac.za/thesis/available/etd-02212007-143602/ |