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, Ali
dc.contributor.authorKerey, Ilyas Erdal
dc.contributor.authorOzcan, Selcuk
dc.date.accessioned2024-11-07T10:39:35Z
dc.date.available2024-11-07T10:39:35Z
dc.date.issued2008
dc.departmentNiğde Ömer Halisdemir Üniversitesi
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 -- 101476
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.
dc.identifier.endpage192
dc.identifier.scopus2-s2.0-84890260368
dc.identifier.scopusqualityN/A
dc.identifier.startpage183
dc.identifier.urihttps://hdl.handle.net/11480/11039
dc.identifier.volume1
dc.indekslendigikaynakScopus
dc.language.isoen
dc.relation.ispartof8th International Scientific Conference on Modern Management of Mine Producing, Geology and Environmental Protection, SGEM 2008
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectCentral anotolian volcanic province (CAVP)
dc.subjectClay minerals
dc.subjectLate miocene
dc.subjectPaleosol-Calcrete
dc.subjectWeathering
dc.titleSedimentology and mineralogy of late miocene Paleosols and calcrete rich sediments in the western part of central anotolian volcanic province (CAVP), Turkey
dc.typeConference Object

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