Cryptoseudomorphism : a new pseudomorphic type

El Sokkary A. A. and Salloum G. M.: Cryptoseudomorphism : a new pseudomorphic type. In: Acta mineralogica-petrographica, (27). pp. 139-144. (1985)

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A new pseudomorphic phenomenon, the so-called cryptopseudomorphism, is discussed here to the first time. This phenomenon is checked against the known types and found that it can not be paramorphic, replacement (substitution) or incrustation pseudomorphism. It is different as well from alteration pseudomorphism because: (1) The new pseudomorphic type is an occult or hidden phenomenon which can not be detected easily except by a combination of several techniques including x-ray diffraction, microscopic examination and chemical analysis. (2) While alteration pseudomorphism is the result of alteration of minerals at mild and more localized environment, the new pseudomorphic phenomenon requires more severe conditions like metamorphism or metasomatism acting on a more or less regional scale. Three examples are given to illustrate this new phenomenon, the most important and most frequent of which is the albitization of basic oligoclase. Studying pseudomorphism of some uranium compounds revealed the presence of a special type called here radioactive pseudomorphism.

Item Type: Article
Journal or Publication Title: Acta mineralogica-petrographica
Date: 1985
Volume: 27
ISSN: 0365-8066
Page Range: pp. 139-144
Language: English
Publisher: University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Place of Publication: Szeged
Related URLs:
Uncontrolled Keywords: Kőzettan, Ásványtan, Földtan
Additional Information: Bibliogr.: p. 143-144. ; 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. 26. 10:08

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