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The determination of several metals in organic separates of selected South African shales
Some or all of the elements Li, Na, K, Rb, Cs, Mg, Ca, Sr, Cr, Mo, Mn, Fe, Co, Ni, Cu, Ag, Au, Zn, Pb and Tl are determined by Atomic Absorption Spectroscopy in soluble organic and total organic separates from thirty-six samples of South African carboniferous shales. The whole rock values for most o...
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| Format: | Thesis |
| Language: | English |
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Department of Geological Sciences
2016
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| _version_ | 1867613312540213248 |
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| access_status_str | Open Access |
| author | Marchant, James William |
| author2 | Danchin, Bobby |
| author_browse | Danchin, Bobby Marchant, James William |
| author_facet | Danchin, Bobby Marchant, James William |
| author_sort | Marchant, James William |
| collection | Thesis |
| description | Some or all of the elements Li, Na, K, Rb, Cs, Mg, Ca, Sr, Cr, Mo, Mn, Fe, Co, Ni, Cu, Ag, Au, Zn, Pb and Tl are determined by Atomic Absorption Spectroscopy in soluble organic and total organic separates from thirty-six samples of South African carboniferous shales. The whole rock values for most of these elements in the samples are known and can be compared with the corresponding values of the organic fraction. A colloidal technique is developed to extract fairly pure kerogen from the shales. Rb, Cs, Ca, Cr, Co, Ni, Cu, Zn and Pb are concentrated in the organic fraction. The results for Rb, Cs and Ca are unexpected. The elements are apparently associated with a sub-fraction of the organic fraction. Several new organic geochemical parameters are developed to interpret the results. Interelement correlations in the various fractions of the shales, the relationship between metal content and organic content, the relationship between concentration of metals by organic matter and residence time, and the use of the metal content of the organic fraction as a paleosalinity test are discussed. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/18059 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:08.683Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Geological Sciences |
| publisherStr | Department of Geological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/18059 The determination of several metals in organic separates of selected South African shales Marchant, James William Danchin, Bobby Geochemistry Some or all of the elements Li, Na, K, Rb, Cs, Mg, Ca, Sr, Cr, Mo, Mn, Fe, Co, Ni, Cu, Ag, Au, Zn, Pb and Tl are determined by Atomic Absorption Spectroscopy in soluble organic and total organic separates from thirty-six samples of South African carboniferous shales. The whole rock values for most of these elements in the samples are known and can be compared with the corresponding values of the organic fraction. A colloidal technique is developed to extract fairly pure kerogen from the shales. Rb, Cs, Ca, Cr, Co, Ni, Cu, Zn and Pb are concentrated in the organic fraction. The results for Rb, Cs and Ca are unexpected. The elements are apparently associated with a sub-fraction of the organic fraction. Several new organic geochemical parameters are developed to interpret the results. Interelement correlations in the various fractions of the shales, the relationship between metal content and organic content, the relationship between concentration of metals by organic matter and residence time, and the use of the metal content of the organic fraction as a paleosalinity test are discussed. 2016-03-21T19:13:32Z 2016-03-21T19:13:32Z 1970 Master Thesis Masters MSc http://hdl.handle.net/11427/18059 eng application/pdf Department of Geological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Geochemistry Marchant, James William The determination of several metals in organic separates of selected South African shales |
| thesis_degree_str | Master's |
| title | The determination of several metals in organic separates of selected South African shales |
| title_full | The determination of several metals in organic separates of selected South African shales |
| title_fullStr | The determination of several metals in organic separates of selected South African shales |
| title_full_unstemmed | The determination of several metals in organic separates of selected South African shales |
| title_short | The determination of several metals in organic separates of selected South African shales |
| title_sort | determination of several metals in organic separates of selected south african shales |
| topic | Geochemistry |
| url | http://hdl.handle.net/11427/18059 |
| work_keys_str_mv | AT marchantjameswilliam thedeterminationofseveralmetalsinorganicseparatesofselectedsouthafricanshales AT marchantjameswilliam determinationofseveralmetalsinorganicseparatesofselectedsouthafricanshales |