Textural features of Eocene-aged sandstones from Gumushane (NE Turkiye): Evidence from grain size analysis

  • Cigdem Saydam Eker Gümüşhane University
Keywords: Sandstone, Textural characteristic, Grain size, Sorting, Skewed, Grain morphology

Abstract

In the present study, a total of 15 characteristic sandstone samples of Eocene siliciclastic rocks in the Kelkit (Gumushane) area have been examined for their grain size textural parameters. The siliciclastic rocks are generally composed of thin – thick-bedded, light grey, brown-colored sandstones and thin, medium bedded, green, yellowish-brown, greenish grey colored marl intercalated. The mean grain size (Mz) of the sandstone samples ranges from 1.93 to 2.77 ϕ) and is classified as medium-grained - fine-grained sandstone. The Standard deviation (σ1) values of the sample are between 0.27 and 1.07 ϕ and the sandstone samples' sorting range from very well-sorted to poorly sorted. The calculated graphic skewness (Sk) values for sandstone samples range from -0.2 to 0.16 ϕ and are categorized as coarse-skewed and fine-skewed. According to the morphology of grains, the sandstone samples were defined as subangular, subrounded, and rounded. Based on the textural parameter data, Eocene-aged sandstones in the studied area mainly change between texturally mature and immature sandstones. The sandstones are thought to have taken material from bivariate sources, one closer to the basin and the other farther away.

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Published
2022-12-31
How to Cite
Saydam Eker, C. (2022). Textural features of Eocene-aged sandstones from Gumushane (NE Turkiye): Evidence from grain size analysis. Journal of Engineering Research and Applied Science, 11(2), 2093-2103. Retrieved from http://www.journaleras.com/index.php/jeras/article/view/300
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Articles