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Physicochemical analysis of South African metamorphosed coal
Thesis (PhD)--University of Pretoria 2020.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2020
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| _version_ | 1867613720795938816 |
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| access_status_str | Open Access |
| author2 | Roberts, R.J. (James) |
| author_browse | Roberts, R.J. (James) |
| author_facet | Roberts, R.J. (James) |
| collection | Thesis |
| dc_rights_str_mv | © 2019 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 (PhD)--University of Pretoria 2020. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/72838 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:40:38.203Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| 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:2263/72838 Physicochemical analysis of South African metamorphosed coal Roberts, R.J. (James) john.bussio@live.com Bussio, John UCTD Physicochemical analysis Metamorphosed coal Coal rank Thermal maturation Geochemistry Mineral composition Natural and agricultural sciences theses SDG-07 Natural and agricultural sciences theses SDG-09 Natural and agricultural sciences theses SDG-12 Thesis (PhD)--University of Pretoria 2020. An in-depth understanding of the physico-chemical nature of coal is required in order to meet ever-increasing energy demands and environmental legislature. New and classical coal analysis techniques were used on thermally-affected coals from a working coalfield in Secunda, South Africa. The study area has ubiquitous dolerite intrusions that have large-scale impacts on the minable coal resource. A combination of five modern and classical analysis techniques, namely Schmidt hammer testing, three-dimensional X-ray tomography, proximate analysis, petrographic analysis with reflectance analysis, and two-dimensional gas chromatography time of flight mass spectrometry (GC*GCTOFMS) were used to model the mechanics of metamorphism of coal intruded by an igneous body. Freshly exposed coalface with an intersecting dolerite was analysed. The data produced from GC*GCTOFMS, reflectance, and tomographic analysis produced no strong linear correlations. Thermal dolerite influence was capped at approximately 5m from the dolerite intrusion and of note was a secondary trend that identified peaks throughout the transect correlating across GC*GCTOFMS, reflectance, and tomographic analysis. To reconcile the non-linear correlation a model using a combination of hydrothermal and thermal influences was produced to explain the mechanics of the metamorphic environment. bs2026 Geology PhD Unrestricted SDG-07: Affordable and clean energy SDG-09: Industry, innovation and infrastructure SDG-12: Responsible consumption and production 2020-01-21T06:18:18Z 2020-01-21T06:18:18Z 2020-04-09 2020 Thesis Bussio, J 2020, Physicochemical analysis of South African metamorphosed coal, PhD Thesis, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/72838> A2020 http://hdl.handle.net/2263/72838 en © 2019 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 Physicochemical analysis Metamorphosed coal Coal rank Thermal maturation Geochemistry Mineral composition Natural and agricultural sciences theses SDG-07 Natural and agricultural sciences theses SDG-09 Natural and agricultural sciences theses SDG-12 Physicochemical analysis of South African metamorphosed coal |
| title | Physicochemical analysis of South African metamorphosed coal |
| title_full | Physicochemical analysis of South African metamorphosed coal |
| title_fullStr | Physicochemical analysis of South African metamorphosed coal |
| title_full_unstemmed | Physicochemical analysis of South African metamorphosed coal |
| title_short | Physicochemical analysis of South African metamorphosed coal |
| title_sort | physicochemical analysis of south african metamorphosed coal |
| topic | UCTD Physicochemical analysis Metamorphosed coal Coal rank Thermal maturation Geochemistry Mineral composition Natural and agricultural sciences theses SDG-07 Natural and agricultural sciences theses SDG-09 Natural and agricultural sciences theses SDG-12 |
| url | http://hdl.handle.net/2263/72838 |