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https://hdl.handle.net/2440/133305
Type: | Thesis |
Title: | The mineralogy and chemistry of the Caralue, Mundrabilla and Witchelina meteorites |
Author: | Schmidt, B. L. |
Issue Date: | 1969 |
School/Discipline: | School of Physical Sciences |
Abstract: | Three meteorites have been analysed, petrologically and mineragraphically described. Two, Caralue and Mundrabilla, are medium octahedrites: Caralue is a genuinely low sulphur meteorite, while Mundrabilla is exceptionally high in sulphur, phosphorus, chlorine, carbon and contains accessory silicates. Eight primary minerals have been found in Caralue and eleven in Mundrabilla. Mineragraphic investigations show interesting crystallisation and deformation events in the two irons. The third meteorite, Witchelina, is a highly-weathered Olivine-Bronzite-Chondrite with a high content of ferric oxide. Nine primary minerals were found in Witchelina, while all three meteorites contain pentlandite, goethite and magnetite formed by weathering. Sampling and analytical methods are discussed, as are the relationship between composition and mineralogy for the siderites and aerolite. It is concluded that X-ray Fluorescence is a suitable analytical method for S, P and Cl in irons, and for the determination of Si, Ti, Al, Cr, total Fe, Mn, Ca, P, Mg, S and Cl in aerolites. Atomic Absorption Spectroscopy is a valuable technique for determining Ni, Co, Cu, Zn, Cr and Mn in siderites and aerolites. |
Dissertation Note: | Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 1969 |
Keywords: | Honours; Geology; meteorites; siderites; aerolites; chemistry; mineralogy; analytical methods |
Description: | This item is only available electronically. |
Provenance: | This electronic version is made publicly available by the University of Adelaide in accordance with its open access policy for student theses. Copyright in this thesis remains with the author. This thesis may incorporate third party material which has been used by the author pursuant to Fair Dealing exceptions. If you are the author of this thesis and do not wish it to be made publicly available, or you are the owner of any included third party copyright material you wish to be removed from this electronic version, please complete the take down form located at: http://www.adelaide.edu.au/legals |
Appears in Collections: | School of Physical Sciences |
Files in This Item:
File | Size | Format | |
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SchmidtBL1969_Hons.pdf | 6.18 MB | Adobe PDF | View/Open |
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