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The Mineralogy and Distribution of Zeolitic Tuffs in the Maramures Basin, Romania

Published online by Cambridge University Press:  01 January 2024

Jean-jacques Cochemé ,
Peter J. Leggo ,
Gheorghe Damian ,
Alexandrina Fulop ,
Béatrice Ledésert  and
Olivier Grauby
Jean-jacques Cochemé*
Affiliation:
Laboratoire de Pétrologie Magmatique, Case 441, Faculté des Sciences St Jérôme, Université Aix-Marseille III, 13397 Marseille Cedex 20, France
Peter J. Leggo
Affiliation:
Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ, UK
Gheorghe Damian
Affiliation:
Department of Geology and Environmental Engineering, University of North Baia Mare, Dr. V. Babes Street 146, 4800 Baia Mare, Romania
Alexandrina Fulop
Affiliation:
Department of Geology and Environmental Engineering, University of North Baia Mare, Dr. V. Babes Street 146, 4800 Baia Mare, Romania
Béatrice Ledésert
Affiliation:
Laboratoire de Sédimentologie et Géodynamique, Université de Lille I, 59655 Villeneuve d’Ascq Cedex, France
Olivier Grauby
Affiliation:
CRMC2-CNRS, Campus de Luminy, Case 913, 163 avenue de Luminy, 13288 Marseille cedex 9, France
*
*E-mail address of corresponding author: [email protected]
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Abstract

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The Maramures Basin, in the Carpathian mountain belt of northern Romania on the border with the Ukraine, belongs to the eastern part of the Pannonian Basin. In the study area, extensional tectonic movements during the Miocene were coeval with silicic and intermediate volcanism in the inner part of the Eastern Carpathians. Throughout this region, explosive events have resulted in the deposition of pyroclastic flows and ash-fall deposits interbedded with marine sediments.

Several tuff units of Badenian (15–13.6 Ma) age occurring throughout the area are extensively zeolitized. These rocks occur as massive homogeneous beds, white to pale greenish-blue, and are commonly extensively jointed. In the Bârsana-Calinesti area and along the Morii Valley, two conspicuous tuff units that can be traced over many km are separated by a calcareous sandstone bed. Most tuffs have a vitroclastic texture in which former glass shards are pseudomorphed by clay minerals and clinoptilolite. Opal-CT commonly occurs as clumps of radiating rods that produce a spherical morphology. Also, rare celadonite is found in the lower greenish tuffs. Pyrogenic crystal fragments are quartz, plagioclase and biotite. Folded muscovite plates and fragments of basement rocks are dominant among the lithic clasts. Above the Bârsana Formation, a second series of white zeolitized tuff, the Ocna Sugatag Formation, is represented by at least two different units overlying an evaporite salt deposit. A large outcrop of a massive white tuff at this locality contains abundant fine-grained clinoptilolite and cation-exchange capacity values of >160 meq/100 g. Clinoptilolite-Ca is also present in the Sighetu tuff unit in the northern part of the Maramures Basin where a distinctive horizon contains plant remains preserved in spherical concretions. Plant material and algal limestones in the same succession strongly suggest that the marine depositional environment was close inshore, and shallow-rather than deep-water conditions are inferred. A mineralogically similar, unaltered, volcanic tuff found in the Coas area suggests that the precursor glass was rhyolitic (72–74% SiO2) with a high-K calc-alkaline affinity. We conclude that pervasive zeolitization is due to the interaction between seawater and vitroclasts at an early stage after deposition.

Keywords

ClinoptiloliteEastern CarpathiansMaramures BasinRomaniaZeolitic Tuffs
Type
Research Article
Information
Clays and Clay Minerals , Volume 51 , Issue 6 , December 2003 , pp. 599 - 608
Copyright
Copyright © 2003, The Clay Minerals Society

References

Aleksiev, B. and Djourova, E.G., (1975) On the origin of zeolite rocks Comptes Rendus Académie Bulgare des Sciences 28 517–520.Google Scholar
Alietti, A. Brigatti, M.F. and Poppi, L., (1977) Natural Ca-rich clinoptilolites (heulandite of group 3): New data review Neues Jahrbuch für Mineralogie Monatshefte 493–501.Google Scholar
Bárbat, A. and Marton, A. (1989) Tufurile vulcanice zeolitice. Ed. Dacia, , Cluj-Napoca, Romania, 234 pp.Google Scholar
Bedelean, I. and Stoici, S.D., (1984) Zeoliţii Bucharest Editura Tehnicá 227 pp.Google Scholar
Bish, D.L. Boak, J.M., Bish, D.L. and Ming, D.W., (2001) Clinoptilolite-heulandite nomenclature Natural Zeolites: Occurrence, Properties, Applications Washington, D.C. Mineralogical Society of America 207–216 10.1515/9781501509117-007.Google Scholar
Boles, J.R., (1972) Composition, optical properties, cell dimensions and thermal stability of some heulandite group zeolites American Mineralogist 57 1463–1493.Google Scholar
Buckley, A. Bevan, J.C. Brown, K.M. and Johnson, L.R., (1978) Glauconite and celadonite: two separate mineral species Mineralogical Magazine 42 373–382 10.1180/minmag.1978.042.323.08.Google Scholar
Coombs, D.S. Alberti, A. Armbruster, T. Artioli, G. Colella, C. Galli, E. Grice, J.D. Liebau, F. Mandarino, J.A. Minato, H. Nickel, E.H. Passaglia, E. Peacor, D.R. Quartieri, S. Rinaldi, R. Ross, M. Sheppard, R.A. Tillmanns, E. and Vezzalini, G., (1997) Recommended nomenclature for zeolite minerals: Report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names The Canadian Mineralogist 35 1571–1606.Google Scholar
Damian, G.h. Pop, N. Kovacs, P.P. and Mârza, I., (1991) La pétrologie des tufs volcaniques badénienne du Bassin Maramureş The Volcanic Tuffs from the Transylvanian Basin Romania University of Cluj-Napoca 233–243.Google Scholar
Deer, W.A., Howie, R.A. and Zussman, J. (1962) Rock-forming minerals Vol. 3: Sheet Silicates. Longman, Green and Co. Ltd., London, 270 pp.Google Scholar
Fulop, A. and Kovacs, M., (1996) Pannonian acid volcanism in Gutai Mts. (East Carpathians, Romania) — volcanological features, magmatological and tectonical significance. Plate tectonic aspects of the alpine metallogeny in the Carpatho-Balkan region Proceedings of the Annual Meeting — Sofia 1996 2 57–65 356.Google Scholar
Ghiara, M.R. Petti, C. Franco, E. Lonis, R. Luxoro, S. and Gnazzo, L., (1999) Occurrence of clinoptilolite and mordenite in Tertiary calc-alkaline pyroclastites from Sardinia (Italy) Clays and Clay Minerals 47 319–328 10.1346/CCMN.1999.0470308.Google Scholar
Kitsopoulos, K.P., (1999) Cation-exchange capacity (CEC) of zeolitic volcaniclastic materials: applicability of the ammonium acetate saturation (AMAS) method Clays and Clay Minerals 47 688–696 10.1346/CCMN.1999.0470602.Google Scholar
Leggo, P.J. Cocheme, J.-J. Demant, A. and Lee, W.T., (2001) The role of argillic alteration in the zeolitization of the volcanic glass Mineralogical Magazine 65 653–663 10.1180/002646101317018479.Google Scholar
Mumpton, F.A., (1960) Clinoptilolite redefined American Mineralogist 45 351–369.Google Scholar
Mârza, I. (1991) The Volcanic Tuffs from the Transylvanian Basin Romania. University of Cluj-Napoca, Special Issue 8211, 464 pp.Google Scholar
Mârza, I. Meszáros, N. and Mârza, I., (1991) Les tufs volcaniques de Transylvanie: historique, valeur théorique et pratique dans le développement de la geologie transylvaine The Volcanic Tuffs from the Transylvanian Basin Romania University of Cluj-Napoca 11–21.Google Scholar
Neacşu, G.h., (1969) Bentonitele din regiunea Alba Iulia — Ocna Mureşului Bucharest Editura Academiei Române 205 pp.Google Scholar
Passaglia, E., (1970) The crystal chemistry of chabazites American Mineralogist 55 1278–1301.Google Scholar
Pécskay, Z. Lexa, J. Szakács, A. Balogh, K. Seghedi, I. Konečný, V. Kovács, M. Márton, E. Kaličiak, M. Széky-Fux, V. Póka, T. Gyarmati, P. Edelstein, O. Rosu, E. and Žec, B., (1995) Space and time distribution of Neogene-Quaternary volcanism in the Carpatho-Pannonian Region Acta Vulcanologica 7 15–28.Google Scholar
Pop, N. and Kovacs, P.P., (1982) Contribuţii la studiul Tufurilor vulcanice de la Mirşid (Judeţul Sálaj) Proceedings of the Institute of Geology and Geophysics, Bucharest LXVIII 2 63–75 1981.Google Scholar
Resing, J.A. and Sansone, F.J., (1999) The chemistry of lavaseawater interactions: The generation of acidity Geochimica et Cosmochimica Acta 63 2183–2198 10.1016/S0016-7037(99)00193-3.Google Scholar
Vaughan, D.E.V. Strohmaier, K.G. Treacy, M.M.J. Rice, S.B. Leonowicz, M.E., Ming, D.W. and Mumpton, F.A., (1995) The influence of intergrowths on zeolite properties Natural Zeolites’ 93 New York International Committee on Natural Zeolites, State University of New York — College at Brockport 187–198.Google Scholar