Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
The geology of the manganese and iron deposits north of Postmasburg, C.P.
Thesis (DSc (Geology))--University of Pretoria, 1941.
Saved in:
| Other Authors: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
University of Pretoria
2024
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613479992557568 |
|---|---|
| access_status_str | Open Access |
| author2 | Boardman, L.G. |
| author_browse | Boardman, L.G. |
| author_facet | Boardman, L.G. |
| 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 (Geology))--University of Pretoria, 1941. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/99458 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:36:48.836Z |
| 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:2263/99458 The geology of the manganese and iron deposits north of Postmasburg, C.P. Boardman, L.G. Geology Manganese Iron deposits Postmasburg UCTD Thesis (DSc (Geology))--University of Pretoria, 1941. This thesis is based on nearly three years work on the manganese fields of Postmasburg. During this period the writer was able to study in detail every corner of the fields, and make detailed maps of every manganiferous portion, barring a small area at Aucampsrust, which was later visited, and formed the subject of a paper read before the Geological Society of South .Africa. Small portions bearing little manganese in the immediate vicinity of Postmasburg itself were mapped on a smaller scale by two of my colleagues. Because of the lengthy and detailed field work, the subject matter of this thesis is largely based on field observations; supplemented by the study of some mineralogical details in the laboratory. The field study therefore embodies the results of the detailed mapping and observations. The complex geology, dominated by the two major factors in the shape of the unconformity between the Matsap and Transvaal systems, and the post-Mat sap thrusting, is described. From the nature and distribution of the basal member of the Gamagara sediments, conclusions are drawn with regard to the distribution of the members of the Transvaal system in the area in pre-Mat sap times. In the light of such a distribution, the evolution and effect of the post-Matsap tectonics is discussed. Particular attention is paid to the nature of the manganese and iron deposits; and the relation of the one type of deposit to the other; as well as their relations to the enclosing geologioal formations. The probable time and mode of the periods of haematitisation and manganisation is discussed, and the possible effect of the active constituents in the accessory minerals on the mineralisation is alluded to. The interesting assemblage of accessory minerals are also described. Geology DSc (Geology) 2024-11-27T09:15:54Z 2024-11-27T09:15:54Z 22/01/14 1941 Thesis http://hdl.handle.net/2263/99458 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 | Geology Manganese Iron deposits Postmasburg UCTD The geology of the manganese and iron deposits north of Postmasburg, C.P. |
| title | The geology of the manganese and iron deposits north of Postmasburg, C.P. |
| title_full | The geology of the manganese and iron deposits north of Postmasburg, C.P. |
| title_fullStr | The geology of the manganese and iron deposits north of Postmasburg, C.P. |
| title_full_unstemmed | The geology of the manganese and iron deposits north of Postmasburg, C.P. |
| title_short | The geology of the manganese and iron deposits north of Postmasburg, C.P. |
| title_sort | geology of the manganese and iron deposits north of postmasburg c p |
| topic | Geology Manganese Iron deposits Postmasburg UCTD |
| url | http://hdl.handle.net/2263/99458 |