Mineralogical and Geochemical Properties of Clays to Associated with the Yarıkkaya (Yalvaç-Isparta) Coal Deposits
Abstract
This study contains the mineralogical and geochemical characteristics of clays associated with Yarıkkaya (Yalvaç-Isparta) lignite coals. The clays are located in three lignite coal sites in the Yarıkkaya Neogene basin. The claystone member mainly consisting of claystone, carbonated shale, marl and locally mudstone, is settled in the Miocene Yarıkkaya formation. The clay occurrence is generally at the bottom of coal and sometimes at the upper parts of coal levels or laterally transitive with clays. The clay deposits have gray, dark gray and khaki colour, and they are generally covered by brown or gray bituminous materials. Their thickness changes between 5-15 m, and has a maximum thickness of 40 m as intercalated with the other lithologies in the Yarikkaya-3 location. The mineral paragenesis of clay formation mainly consists of illite, kaolinite, chlorite, and to a lesser amount smectite. SiO2/Al2O3 vs. Fe2O3/K2O ratios indicated that Yarıkkaya clay samples are defined as mainly shale, less greywacke and quartz arenite. The average Al2O3/TiO2 ratios suggest that Yarıkkaya clay samples show intermediate source rock. Cu, Ba, Pb, Zn, Co, Zr, Ga, Rb, V are considerably lower, only Ni contents are higher contents of with respect to PAAS. Geochemical contents of the investigated clays show that the clastics which are derived from the Seydişehir formation rocks could give a material to the Yarıkkaya lacustrine sediments.
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References
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Details
Primary Language
English
Subjects
Engineering
Journal Section
Research Article
Authors
Oya Cengiz
*
0000-0003-1363-4638
Türkiye
Ayhan Uzun
0000-0002-3221-2564
Türkiye
Maksat Bekiyev
0000-0002-0378-3130
Türkiye
Publication Date
December 25, 2020
Submission Date
December 18, 2019
Acceptance Date
September 22, 2020
Published in Issue
Year 2020 Volume: 24 Number: 3