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Ground-water in the Orange Free State Gold-Field
Thesis (DSc)--University of Pretoria, 1967.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2024
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| _version_ | 1867613679031156736 |
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| access_status_str | Open Access |
| author2 | Venter, Philippus Petrus |
| author_browse | Venter, Philippus Petrus |
| author_facet | Venter, Philippus Petrus |
| collection | Thesis |
| dc_rights_str_mv | © 2024 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 | Thesis (DSc)--University of Pretoria, 1967. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/99512 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:39:58.654Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| 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:2263/99512 Ground-water in the Orange Free State Gold-Field Venter, Philippus Petrus Ground-water Orange Free State Gold-Field UCTD Thesis (DSc)--University of Pretoria, 1967. The difficulties experienced in the control and disposal of large flows of saline water in to the mine workings in the Orange Free State Gold-field provided the impetus for a detailed study of the geohydrological conditions prevailing in the vicinity of the mines. Ground-water occurring at shallow depths was studied by examining borehole results, fissures and water-bearing layers exposed in shafts and the chemical analysis of water obtained from such sources. Information regarding the mode of occurrence of water encountered at depth in the mine workings was obtained from a careful examination of numerous ground-water intersections, records of rates of inflow, water levels in bore-holes and in disused shafts. Records of rates of pumping and mine plans showing the geology and the location and orientation of water-bearing fissures were also available for study. Of considerable value were chemical analyses of samples of water obtained from all the operating mines. A specially designed experiment conducted at the flooded Merriespruit Mine provided valuable information regarding the lowering of the surface of pressure-relief due to a known rate of water removal from the deep-seated aquifer. The available data led the writer to conclude that the saline water and gas contained in fissures in the rocks of the Witwatersrand and Ventersdorp Systems flowed into the fissures during a marine inundation shortly after the deposition of the Dwyka tillite. Saline water intersected in a number of bore-holes drilled for exploration purposes flowed out at the surface. Geology DSc 2024-11-27T09:16:03Z 2024-11-27T09:16:03Z 22/02/10 1967 Thesis http://hdl.handle.net/2263/99512 en © 2024 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 | Ground-water Orange Free State Gold-Field UCTD Ground-water in the Orange Free State Gold-Field |
| title | Ground-water in the Orange Free State Gold-Field |
| title_full | Ground-water in the Orange Free State Gold-Field |
| title_fullStr | Ground-water in the Orange Free State Gold-Field |
| title_full_unstemmed | Ground-water in the Orange Free State Gold-Field |
| title_short | Ground-water in the Orange Free State Gold-Field |
| title_sort | ground water in the orange free state gold field |
| topic | Ground-water Orange Free State Gold-Field UCTD |
| url | http://hdl.handle.net/2263/99512 |