Problems in X-ray diffraction determination of mineral composition of sedimentary rocks

Mezősi József: Problems in X-ray diffraction determination of mineral composition of sedimentary rocks. In: Acta mineralogica-petrographica, (21) 2. pp. 207-217. (1974)

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Abstract

Quantitative determination of the mineral composition of core samples originating from deepbores of the South Great Plain was performed by means of X-ray diffractometry. The difficulties occurring at the determination of muscovite, illite, illite/montmorillonite and chlorite were investigated. The change in mineral composition in the fraction less than 10 microns as compared to the average sample was investigated separately. It was stated that there is a correlation between the quantities of FeO and chlorite of the investigated samples. A definite relationship can be determined between the amount of chlorite and that of B, V, Ni and Cr. Positive correlation can be determined between the ppm values of Sr and the carbonate minerals. In the samples of 10 microns the quantity of calcite increased at the expense of dolomite, while dolomite is mostly absent in the fraction of 10 microns. In the core samples of the "Makó depression trench" albite and acidic plagioclase were found only in the Lower Pannonian strata, in the Upper Miocene formations only albite occurs in determinable quantity. On the basis of the diffractograms the potash-feldspars are absent, under microscope their quantity is subordinate.

Item Type: Article
Journal or Publication Title: Acta mineralogica-petrographica
Date: 1974
Volume: 21
Number: 2
ISSN: 0365-8066
Page Range: pp. 207-217
Language: English
Publisher: University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Place of Publication: Szeged
Related URLs: http://acta.bibl.u-szeged.hu/39393/
Uncontrolled Keywords: Kőzettan, Ásványtan, Földtan
Additional Information: Bibliogr.: p. 216-217. ; ill. ; összefoglalás angol nyelven
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. 22. 14:21
URI: http://acta.bibl.u-szeged.hu/id/eprint/24573

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