Origin and Paleoenvironmental Conditions of the Köprüağzı Evaporites (Eastern Anatolia, Turkey): Sedimentological, Mineralogical and Geochemical Constraints

Güngör Yeşilova, Pelin; Baran, Ozan

doi:10.3390/min13020282

Open AccessArticle

Origin and Paleoenvironmental Conditions of the Köprüağzı Evaporites (Eastern Anatolia, Turkey): Sedimentological, Mineralogical and Geochemical Constraints

by

Pelin Güngör Yeşilova

^1,*

and

Ozan Baran

²

¹

Department of Geological Engineering, Engineering Faculty, Van Yüzüncü Yıl University, 65080 Van, Turkey

²

Institute of Natural Applied Sciences, Van Yüzüncü Yıl University, 65080 Van, Turkey

^*

Author to whom correspondence should be addressed.

Minerals 2023, 13(2), 282; https://doi.org/10.3390/min13020282

Submission received: 21 January 2023 / Revised: 13 February 2023 / Accepted: 15 February 2023 / Published: 17 February 2023

(This article belongs to the Special Issue Geochemistry and Mineralogy of Clays and Their Application to Paleoclimatic and Paleoenvironmental Reconstruction)

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Abstract

Köprüağzı evaporites mainly consist of primary (selenite and gypsarenite) and secondary (massive, laminated and satin-spar) gypsum lithofacies, as well as minor anhydrite, and are interbedded with clastic and carbonate units. Sedimentological-mineralogical and geochemical findings reveal that the depositional basin extends from a lagoon to the hinterland. These data confirm that too much detrital input was transported into the basin with multiple salinity and pH value fluctuations, organic matter activity and reducing conditions. Geochemical data point out the shallow environment and the mixing of hydrothermal fluids and fresh waters. The investigated evaporites were exposed to diagenesis and alteration under the influence of a hot—dry and minor humid climate, tectonism and pressure. The ⁸⁷Sr/⁸⁶Sr, δ³⁴S and δ¹⁸O isotope values of Köprüağzı evaporites reveal that they are of Miocene marine sulfate origin.

Keywords: Eastern Anatolia; Başkale; Van; Köprüağzı evaporite; marine origin

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Güngör Yeşilova, P.; Baran, O. Origin and Paleoenvironmental Conditions of the Köprüağzı Evaporites (Eastern Anatolia, Turkey): Sedimentological, Mineralogical and Geochemical Constraints. Minerals 2023, 13, 282. https://doi.org/10.3390/min13020282

AMA Style

Güngör Yeşilova P, Baran O. Origin and Paleoenvironmental Conditions of the Köprüağzı Evaporites (Eastern Anatolia, Turkey): Sedimentological, Mineralogical and Geochemical Constraints. Minerals. 2023; 13(2):282. https://doi.org/10.3390/min13020282

Chicago/Turabian Style

Güngör Yeşilova, Pelin, and Ozan Baran. 2023. "Origin and Paleoenvironmental Conditions of the Köprüağzı Evaporites (Eastern Anatolia, Turkey): Sedimentological, Mineralogical and Geochemical Constraints" Minerals 13, no. 2: 282. https://doi.org/10.3390/min13020282

APA Style

Güngör Yeşilova, P., & Baran, O. (2023). Origin and Paleoenvironmental Conditions of the Köprüağzı Evaporites (Eastern Anatolia, Turkey): Sedimentological, Mineralogical and Geochemical Constraints. Minerals, 13(2), 282. https://doi.org/10.3390/min13020282

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Origin and Paleoenvironmental Conditions of the Köprüağzı Evaporites (Eastern Anatolia, Turkey): Sedimentological, Mineralogical and Geochemical Constraints

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