Environmental and depositional characteristics of diatomite deposit, Alayunt Neogene Basin (Kutahya), West Anatolia, Turkey

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dc.contributor.authorElmas, Numan
dc.contributor.authorBentli, Ismail
dc.date.accessioned2024-08-04T20:37:22Z
dc.date.available2024-08-04T20:37:22Z
dc.date.issued2013
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThis paper describes the geological-depositional and environmental characteristics of diatomite. The diatomite deposit is situated in the southern part of the Alayunt (Kutahya) Basin. Samples of 18 diatomites and 12 host rocks were collected from four sedimentary profiles in the spring season. Basement rocks are Paleozoic-aged metamorphic rocks (schist, phyllite, quartzite, etc.) and Mesozoic-aged ophiolitic and complex rocks. Host rocks are rhyodacitic-rhyolitic tuffite, volcanic glass. Diatomite is composed of Upper Miocene-Upper Pliocene-aged diatom species. Diatomite shows layer morphology and lies on volcanic glass layer. XRD characteristic peaks of diatomite show that it comprises dominantly of Opal-A silica, whereas volcanic glass has Opal-CT constituent. SEM and NPM photomicrographs indicate that diatomites are dominantly composed of benthic freshwater diatom species, such as Pinnularia microstauron, Pinnularia lundii, Pinnularia subrostrata, Pinnularia brevicostata, Pinnularia tenuis, Pinnularia sp., Navicula eligensis, Fragilaria construens, Mastogloia braunii Grunow, Melosira varians Agardh, Surirella capronii Br,bisson, Cymbella lanceoloata, Amphora venata, Gomphonema germainii, Gomphonema angustatum and Rhapalodia gibba. These species are general indicators of shallow paleolake environment and cool climate conditions. Due to the fluvial currents and climatic conditions; lake water levels, temperature and nutrient content fluctuated through the time. Chemical data obtained from 18 diatomite samples show that while silica is the bodybuilding material for diatomite (over 89 % SiO2), Al, Mg and Fe contents of diatomite samples might be derived from clastic materials. The concentration of Al, Mg and Fe decreases toward the lake center. Diatom genera, sedimentary profile sections and mineralogic data suggest that diatomite deposited in lacustrine-type freshwater shallow lake is associated with Upper Miocene-aged extension tectonics. Physical and filtration tests along with environmental characteristics of diatomite suggest that calcined diatomite can be used for waste treatment processes in the filter aid industry.en_US
dc.identifier.doi10.1007/s12665-012-1745-5
dc.identifier.endpage412en_US
dc.identifier.issn1866-6280
dc.identifier.issn1866-6299
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-84872023930en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage395en_US
dc.identifier.urihttps://doi.org/10.1007/s12665-012-1745-5
dc.identifier.urihttps://hdl.handle.net/11616/95907
dc.identifier.volume68en_US
dc.identifier.wosWOS:000313059400006en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofEnvironmental Earth Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDiatomiteen_US
dc.subjectVolcano-sedimentaryen_US
dc.subjectOpal-Aen_US
dc.subjectBenthicen_US
dc.subjectFreshwateren_US
dc.subjectFilter aiden_US
dc.titleEnvironmental and depositional characteristics of diatomite deposit, Alayunt Neogene Basin (Kutahya), West Anatolia, Turkeyen_US
dc.typeArticleen_US

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