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Original scientific paper

Zeolitization of Tuffaceous Rocks in the Kesan Region, Thrace, Turkey

F. Esenli
B. Uz
F. Suner
V. Esenli
O.I. Ece
I. Kumbasar

Fulltext: english, pdf (1 MB) pages 151-161 downloads: 868* cite
APA 6th Edition
Esenli, F., Uz, B., Suner, F., Esenli, V., Ece, O.I. & Kumbasar, I. (2005). Zeolitization of Tuffaceous Rocks in the Kesan Region, Thrace, Turkey. Geologia Croatica, 58 (2), 151-161. Retrieved from https://hrcak.srce.hr/3653
MLA 8th Edition
Esenli, F., et al. "Zeolitization of Tuffaceous Rocks in the Kesan Region, Thrace, Turkey." Geologia Croatica, vol. 58, no. 2, 2005, pp. 151-161. https://hrcak.srce.hr/3653. Accessed 25 Jul. 2021.
Chicago 17th Edition
Esenli, F., B. Uz, F. Suner, V. Esenli, O.I. Ece and I. Kumbasar. "Zeolitization of Tuffaceous Rocks in the Kesan Region, Thrace, Turkey." Geologia Croatica 58, no. 2 (2005): 151-161. https://hrcak.srce.hr/3653
Harvard
Esenli, F., et al. (2005). 'Zeolitization of Tuffaceous Rocks in the Kesan Region, Thrace, Turkey', Geologia Croatica, 58(2), pp. 151-161. Available at: https://hrcak.srce.hr/3653 (Accessed 25 July 2021)
Vancouver
Esenli F, Uz B, Suner F, Esenli V, Ece OI, Kumbasar I. Zeolitization of Tuffaceous Rocks in the Kesan Region, Thrace, Turkey. Geologia Croatica [Internet]. 2005 [cited 2021 July 25];58(2):151-161. Available from: https://hrcak.srce.hr/3653
IEEE
F. Esenli, B. Uz, F. Suner, V. Esenli, O.I. Ece and I. Kumbasar, "Zeolitization of Tuffaceous Rocks in the Kesan Region, Thrace, Turkey", Geologia Croatica, vol.58, no. 2, pp. 151-161, 2005. [Online]. Available: https://hrcak.srce.hr/3653. [Accessed: 25 July 2021]

Abstracts
A 33 metre thick pyroclastic-rich zone of the Mezardere formation of Oligocene age is exposed in the Kesan region of Thrace, Turkey. In this zone, vitreous tuffs of dacitic composition have altered primarily to zeolites, including mordenite, heulandite–clinoptilolite and analcime. Silicification and alteration to clay minerals are common. Zeolite minerals have developed from volcanic glass, whereas some mordenites have formed from dissolution of heulandite-group zeolites. Although authigenic mineral paragenesis does not vary laterally, there is a marked vertical variation, particularly in zeolites. Mordenite (+heulandite–clinoptilolite) and analcime do not coexist and have formed in different stratigraphic levels. This suggests that their chemical environment is controlled by different hydrologic systems.

Whole rock composition shows the relationship between chemistry and secondary mineralogy. For example, whole rock trace element geochemistry indicates the natural selectivities of zeolites. There is also stratigraphic control on the chemistry and texture of mordenites. Specifically, (Na+K)/(Ca+Mg) ratios of mordenites decrease from the lower to the upper levels. Mordenites of the lower level show a fibrous habit while the upper level mordenites are needle-like in shape. The average Si/Al ratio in mordenites is 3.90, in heulandite-group minerals 3.95, and in analcimes 2.34.

Keywords
Analcime; Clinoptilolite; Heulandite; Mordenite; Tuffaceous rocks; Zeolitization; Thrace; Turkey

Hrčak ID: 3653

URI
https://hrcak.srce.hr/3653

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