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THENARDITE MINERALIZATIONS OF CAYIRHAN SULFATE OCCURRENCES IN ANKARA, TURKEY: INVESTIGATION OF PARAGENESIS AND FORMATION MECHANISMS

T. A. Kepekli, M. Maral, D. Maral, A. Karalar, L. S. Gunacgun, F. Suner

First published: 2010DOI pendingView metrics

Abstract

Preliminary investigation of mineralizations of Thenardite associated with sulfate occurrences in \cCayırhan – Beypazarı, Ankara is presented. Local geology consists of Paleozoic metamorphite schists, Permo-triassic granitic rocks, Middle Jurassic – Upper Cretaceous limestones and marls in flysch facies, Paleocene aged land sedimentaries and marine Eocene units, Miocene to Pliocene aged lacustrine units, which sodium sulfates are associated to. Thenardite, Glauberite and Mirabilite minerals have been detected by XRD analysis. Thenardite formations have precipitated in small lakes during Pliocene in middle Anatolia. Ten thenardite samples have been investigated for Ca, Mg, Sr, K and Na elements in order to determine the geochemical properties of the mineralization. Petrographical and geochemical analyses show varying cycles and phases of mineral paragenesis, indicating sudden changes of evaporate precipitation history.

Publication details

Title
THENARDITE MINERALIZATIONS OF CAYIRHAN SULFATE OCCURRENCES IN ANKARA, TURKEY: INVESTIGATION OF PARAGENESIS AND FORMATION MECHANISMS
Authors
T. A. Kepekli, M. Maral, D. Maral, A. Karalar, L. S. Gunacgun, F. Suner
Proceedings
10th International Multidisciplinary Scientific GeoConference SGEM2010
Publisher
SGEM Scientific GeoConference
Year
2010
Pages
603-610
SWS Citekey
Kepekli2010349
ISSN
1314-2704
ISBN
954-91818-1-2
Language
en
Publication type
Conference Paper
Keywords
AnkaraEvaporatesParagenesisSulfatesThenardite
References5

  1. Turkish Republic Prime Ministry, State Planning Organization, 8th five year development plan, Special Commission of Mining Report, Ankara, 2001, pp. 1 13-150.

  2. Burkiit, Y., Suner, F., 1995. Chemical deposition of thenardite and glauberite in Çayirhan Basin, central Anatolia, Turkey. Proceedings of MinChem'95, the fifth symposium on mining chemistry, Istanbul, Turkey, pp. 111-115.

  3. Suner, F., 1993. Beypazan trona deposits. Földtani Közlöny, 123/3, pp. 271-282.

  4. Karalar, ?., 1995. Investigation of Çayirhan thenardite formations. BSc. Thesis, Istanbul Technical University, Faculty of Mines, Geological Engineering Department, Istanbul.

  5. Günacgün, L.S., 1998. Investigation of formation of Çayirhan (Ankara) region, thenardite and glauberite deposits. BSc. Thesis, Istanbul Technical University, Faculty of Mines, Geological Engineering Department, Istanbul.

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