Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/18428
Title: | A Study Of The Opaque Minerals In The Whitestone Anorthosite, Dunchurch, Ontario |
Authors: | Kretschmar, Ulrich H. |
Department: | None |
Keywords: | minerals;magnetite;hemoilmenite;minor sulfide;x-ray difraction;oxidizing;chemical analysis;microanalysis |
Publication Date: | May-1968 |
Abstract: | <p> A textural and mineralogical study of the magnetite, hemoilmenite and minor sulfide phases of the Whitestone anorthosite, Dunchurch, Ontario, was carried out. The composition of magnetite and hemo-ilmenite was determined by chemical analysis, X-ray diffraction and electron probe microanalysis. A modification of the solvus shape in the hematite-ilmenite system consistent with the composition of hemo-ilmenite lamellae, as well as a mechanism for formation of metamorphic magnetite porphyroblasts from ferrianilmenite is proposed. Buddington and Lindsley's experimental data cannot be used directly to obtain f02 and T of formation of the anorthosite because compositions fall in the highly oxidizing and as yet undetermined portion of their diagram. </p> |
URI: | http://hdl.handle.net/11375/18428 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Kretschmar_Ulrich_H_1968_Masters.pdf | 13.63 MB | Adobe PDF | View/Open |
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