Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (13) Citing Articles via Google Scholar Google Scholar Articles by Akbulut, A. Articles by Kadir, S. Search for Related Content GeoRef GeoRef Citation

THE GEOLOGY AND ORIGIN OF SEPIOLITE, PALYGORSKITE AND SAPONITE IN NEOGENE LACUSTRINE SEDIMENTS OF THE SERINHISAR-ACIPAYAM BASIN, DENZL, SW TURKEY

Aydoan Akbulut and Selahattin Kadir^*

General Directorate of Mineral Research and Exploration (MTA), 06520 Ankara, Turkey

^* E-mail address of corresponding author: skadir_mta{at}yahoo.com

The Serinhisar-Acipayam basin of western Anatolia hosts a Neogene alkaline lake which formed in some graben and semi-graben depression zones as a result of N–S tension. The basin is filled with fluvial and lacustrine sediments dominated by clayey materials. The filling of the basin with fine sediments and associated water level changes caused the development of swampy and/or semi-swampy, alkaline-lake environments where sepiolite, palygorskite, saponite and dolomitic sepiolite or palygorskite precipitated periodically in the basin. Sepiolite is predominant in the Kuyucak section and is intercalated with saponite-dominated levels, whereas saponite accompanied palygorskite at Kocapinar where basaltic volcanism occurred. The contacts between sepiolite-palygorskite and saponite levels are more or less sharp, reflecting rapid changes in the physicochemical conditions of the depositional environment. Micromorphological images reveal that both sepiolite and palygorskite grew as interwoven fibers or fiber bundles and masses where dolomite was absent, indicating direct precipitation from solution, whereas fibrous networks grew authigenically on and out of dolomite in dolomitic sepiolite and dolomitic palygorskite. Saponite is either green or reddish brown due to its organic material-rich content and derivation from products of basaltic volcanism. Synsedimentary basaltic volcanism was the main source of Fe and Al, whereas Si and Mg were derived from surrounding ultrabasic and detrital units and partly from the volcanism. It can be concluded that sepiolite, palygorskite and saponite formed either by direct precipitation from alkaline lake water or authigenically from interstitial pore-water between dolomite rhombs as controlled by concentration of Si, Mg, Al and Fe, rather than by mutual transformation.

Key Words: Denizli • Lacustrine Environment • Palygorskite • Saponite • Sepiolite • Turkey

This article has been cited by other articles:

				M. Onal, H. Yilmaz, and Y. Sarikaya SOME PHYSICOCHEMICAL PROPERTIES OF THE WHITE SEPIOLITE KNOWN AS PIPESTONE FROM ESKISEHIR, TURKEY Clays and Clay Minerals, October 1, 2008; 56(5): 511 - 519. [Abstract] [Full Text] [PDF]

				S. A. C. Furquim, R. C. Graham, L. Barbiero, J. P. de Queiroz Neto, and V. Valles MINERALOGY AND GENESIS OF SMECTITES IN AN ALKALINE-SALINE ENVIRONMENT OF PANTANAL WETLAND, BRAZIL Clays and Clay Minerals, October 1, 2008; 56(5): 579 - 595. [Abstract] [Full Text] [PDF]

				H. Khademi and J. M. Arocena KAOLINITE FORMATION FROM PALYGORSKITE AND SEPIOLITE IN RHIZOSPHERE SOILS Clays and Clay Minerals, August 1, 2008; 56(4): 429 - 436. [Abstract] [Full Text] [PDF]

				S. Kadir and M. Eren THE OCCURRENCE AND GENESIS OF CLAY MINERALS ASSOCIATED WITH QUATERNARY CALICHES IN THE MERSIN AREA, SOUTHERN TURKEY Clays and Clay Minerals, April 1, 2008; 56(2): 244 - 258. [Abstract] [Full Text] [PDF]

				E. Garcia-Romero, M. Suarez, J. Santaren, and A. Alvarez CRYSTALLOCHEMICAL CHARACTERIZATION OF THE PALYGORSKITE AND SEPIOLITE FROM THE ALLOU KAGNE DEPOSIT, SENEGAL Clays and Clay Minerals, December 1, 2007; 55(6): 606 - 617. [Abstract] [Full Text] [PDF]

				S. Kadir MINERALOGY, GEOCHEMISTRY AND GENESIS OF SMECTITE IN PLIOCENE VOLCANICLASTIC ROCKS OF THE DOGANBEY FORMATION, BEYSEHIR BASIN, KONYA, TURKEY Clays and Clay Minerals, August 1, 2007; 55(4): 402 - 422. [Abstract] [Full Text] [PDF]

				A. Gurel and S. Kadir GEOLOGY, MINERALOGY AND ORIGIN OF CLAY MINERALS OF THE PLIOCENE FLUVIAL-LACUSTRINE DEPOSITS IN THE CAPPADOCIAN VOLCANIC PROVINCE, CENTRAL ANATOLIA, TURKEY Clays and Clay Minerals, October 1, 2006; 54(5): 555 - 570. [Abstract] [Full Text] [PDF]

				M. ARSLAN, S. KADIR, E. ABDIOGLU, and H. KOLAYLI Origin and formation of kaolin minerals in saprolite of Tertiary alkaline volcanic rocks, Eastern Pontides, NE Turkey Clay Minerals, June 1, 2006; 41(2): 597 - 617. [Abstract] [Full Text] [PDF]