El Sokkary A. A.: An unusual carbonate mineral from the schists of Wadi Um Kabu, South Eastern Desert, Egypt. In: Acta mineralogica-petrographica, (25) 2. pp. 197-201. (1982)
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Abstract
An unusual carbonate mineral is associated with the schists of Wadi Um Kabu in the South Eastern Desert of Egypt. It is subjected here to detailed mineralogical and chemical studies. It is revealed that the brownish and rhombic carbonate material under study is composed of: dolomite with MgO partly replacing CaO and the mineral retaining the structure of its predecessor ferroan dolomite, calcite, goethite which is amorphous to poorly crystalline and possible brucite. It is suggested that the former ferroan dolomite was subjected to a thermal metamorphic pulse by means of which major part of Fe and some Ca and Mg were exuded while] the original ferroan dolomite is modified in chemical composition to the present dolomite. The expelled elements formed goethite, calcite and brucite, respectively. Both the dolomites and their schistose country rocks underwent differential mobilization of the three cations: Fe, Ca and Mg under thermal metamorphic environment.
Item Type: | Article |
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Journal or Publication Title: | Acta mineralogica-petrographica |
Date: | 1982 |
Volume: | 25 |
Number: | 2 |
ISSN: | 0365-8066 |
Page Range: | pp. 197-201 |
Language: | English |
Publisher: | University of Szeged, Department of Mineralogy, Geochemistry and Petrology |
Place of Publication: | Szeged |
Related URLs: | http://acta.bibl.u-szeged.hu/39402/ |
Uncontrolled Keywords: | Kőzettan, Ásványtan, Földtan |
Additional Information: | Bibliogr.: 201. p. ; összefoglalás angol nyelven |
Subjects: | 01. Natural sciences 01. Natural sciences > 01.05. Earth and related environmental sciences |
Date Deposited: | 2016. Oct. 17. 09:25 |
Last Modified: | 2022. Jul. 25. 15:48 |
URI: | http://acta.bibl.u-szeged.hu/id/eprint/24701 |
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