Potassium metasomatism in the neighbourhood of Mátraszentistván (W-Mátra mountains)

Mezősi József: Potassium metasomatism in the neighbourhood of Mátraszentistván (W-Mátra mountains). In: Acta mineralogica-petrographica, (18) 2. pp. 99-107. (1968)

[thumbnail of mineralogica_018_fasc_002_099-107.pdf]
Cikk, tanulmány, mű

Download (3MB) | Preview


In the W-Mátra Mountains, S from Mátraszentistván the Lower-Tortonian andesite series underwent potassium metasomatism to a considerable extent. Theplagioclase feldspar of the sometimes compact, sometimes porous but owing to the marked silicification always resistant rock has been replaced by sanidine, easily identified by X-ray investigations. In the course of metasomatism the extent o f silicification is so marked that in certain places instead of feldspar even quartz varieties are to be found. The cavities are covered by quartz and chalcedony, rarely by tridymite. On the N parts of Mátra peaks the medial dacite tuff, appearing on the HelvetianTortonian boundary, is missing, here probably the andesite series is also settled immediately upon the Helvetian marly aleurite, thus likely the Burdigalian acidic detrital vulcanic substance may serve as a potassium source for the endometamagmatic potassium metasomatism.

Item Type: Article
Journal or Publication Title: Acta mineralogica-petrographica
Date: 1968
Volume: 18
Number: 2
ISSN: 0365-8066
Page Range: pp. 99-107
Language: English
Publisher: University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Place of Publication: Szeged
Related URLs: http://acta.bibl.u-szeged.hu/39387/
Uncontrolled Keywords: Kőzettan, Ásványtan, Földtan
Additional Information: Bibliogr.: p. 106-107. ; ill.
Subjects: 01. Natural sciences
01. Natural sciences > 01.05. Earth and related environmental sciences
Date Deposited: 2016. Oct. 17. 09:26
Last Modified: 2022. Jul. 21. 15:12
URI: http://acta.bibl.u-szeged.hu/id/eprint/24495

Actions (login required)

View Item View Item