Mümtaz KİBAR, Kıymet DENİZ, Fatma Esra SARIOĞLU

The Morphology, Mineralogy, Geochemistry and Physical Implications of Foid bearing Syenite and Syenite-Carbonate Rocks Contact Zone Soils: Kırşehir-Akpınar-Buzlukdağ, Turkey

The study area is located to the central part of Central Anatolian Crystalline Complex (CACC). The area mainly composed of Kırşehir metamorphic rocks as the basement units and intruded by syenite, foid syenite and foid diorite. The metamorphic rocks mainly represented by mica schist, chlorite schist, vollastonite marble and marble units. Calcsilicatic minerals and hornfels rocks are observed at the contact of intrusive and metamorphic basement in some parts of the study area. In order to determine morphology, mineralogy, geochemistry and physical properties of the soils two profiles were digged in the area. One of them is located in the foid bearing syenite and the other one is located in the syenite with carbonate rocks contact zone. The petrographical studies reveal that the foid bearing syenite characterised by the presence of nepheline, K-feldspar, plagioclases, Na-amphibole, pyroxene with rare amount of garnet (melanite), titanite and opaque minerals. The marble is mainly composed of calcite and rare amount of wollastonite and opaque minerals. Contact of foid bearing syenite profile is lythic xerorthent, and the other one is described as a typical haploxeroll. They contain important morphological, mineralogical, geochemical and physical differences. It was found that these differences belong to the composition of the host rock of the region.

Keywords:

Argillisation, Central Anatolia Foid syenite, Haploxeroll, Lythic xerorthent,

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