Sedimentology and mineralogy of late miocene Paleosols and calcrete rich sediments in the western part of central anotolian volcanic province (CAVP), Turkey

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dc.contributor.authorGuel A.
dc.contributor.authorKerey I.E.
dc.contributor.authorOzcan S.
dc.date.accessioned2024-03-13T10:01:02Z
dc.date.available2024-03-13T10:01:02Z
dc.date.issued2008
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description8th International Scientific Conference on Modern Management of Mine Producing, Geology and Environmental Protection, SGEM 2008 -- 16 June 2008 through 20 June 2008 -- Albena -- 101476en_US
dc.description.abstractThe Dogantarla-Aksaray area is situated in western part of the CAVP. This province contains nine (9) different ignimbrite levels, for which a Late Miocene age is indicated by vertebrates as well as K/Ar ages of 11 to 2.8 Ma (Viereck-Goette et al 2006). However, most paleosol and calcrete occur within the interval of 7.6 to 2.8 Ma (Gurel and Kadir, 2006). Among this ignimbrite levels, fluvial and lacustrine sediments are found, so called Bayramhacili Formation of western CAVP consist of alternation of typical red conglomerate, sandstone, mudstone, diatomite-limestone and intercalated with several red colored paleosol and calcrete levels. Paleosols and calcrete occurs in sequences with in the whole stratigraphic profile. It is recognized that they are aridisols, inceptisols, locally associated with, oxisols and vertisols, according to the soil taxonomy (Soil Survey Staff, 1992). Paleosols and calcrete of Dogantarla-Aksaray area are characterized by thin section, X-ray diffraction (XRD), and scanning electron microscopy (SEM). Paleosols and calcrete are composed of feldspars, quartz, opal-CT, amphibolites, serpentine, and talk are dominant in the whole profile. They are accompanied by smectite, chlorite, palygorskite, and illite, locally associated with accessory sepiolite. The grains are cemented clay minerals or iron oxide, calcite, and gypsum. The calcite content is attributed mainly to calcrete building, which has a sub-parallel relationship with calcrete, and occurs mainly in the interlayer space of smectite. The clay content decreases with increase in calcite. The non-carbonate fraction is, therefore, quite rich in aluminosilicate minerals. Thus, the presence of an inverse relationship between CaO and other oxides may correspond to an inverse relationship between calcite and other minerals. Minerals such as palygorskite, chlorite, and gypsum are enriched in some levels of the profile. In addition that authigenic smectite, palygorskite and calcite formed as a result of the calcretion of paleosol and calcrete units in alkaline conditions, high Si and Mg activity and low Al; Paragenesis and textural features of the minerals of the fluviallacustrine sediments determined in the study area indicate that precipitation should have been occurred due to climatic fluctuations ranging from arid, semi arid to wet conditions.en_US
dc.identifier.endpage192en_US
dc.identifier.scopus2-s2.0-84890260368en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage183en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12662/2919
dc.identifier.volume1en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartof8th International Scientific Conference on Modern Management of Mine Producing, Geology and Environmental Protection, SGEM 2008en_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCentral anotolian volcanic province (CAVP)en_US
dc.subjectClay mineralsen_US
dc.subjectLate mioceneen_US
dc.subjectPaleosol-Calcreteen_US
dc.subjectWeatheringen_US
dc.titleSedimentology and mineralogy of late miocene Paleosols and calcrete rich sediments in the western part of central anotolian volcanic province (CAVP), Turkeyen_US
dc.typeConference Objecten_US

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