KALETEPE LATERİTİK BOKSİT ZUHURUNUN MİNERALOJİK VE JEOKİMYASAL İNCELEMESİ

Mehmet Salim ÖNCEL, Ali Rıza SÖĞÜT

Abstract


There has been approximately 3 km long bauxitic belt in the Kaletepe lateritic bauxite
occurrences. These lateritic bauxites formed as three levels depending on the three dolerite levels of
İslikayatepe dolerite members. The thickness of the belt are between 30 to 80 meters and generally
continuous but often interrupted by the faults and sometimes buried by younger formations. The
dolerites are a product of withinplate basic magmatism
The observed main minerals in the laterites are boehmite, haematite, gotite, diasporite, anatas,
magnetite, quartz and kaolinites. The main chemical compounds of the laterites are AI2O3 (43 %), Fe2O3
(29 % as total FeO) SİO2 (10 %) and TiO2 (percentage not specified).
The process of lateritic belt has taken place wholly tropical climate condition (interval of dry and wet
seasons above the 20oC) during late Jurassic. Elevation of the region after Paleozoic and the occurrence
of shallow-laguner environments results the lateritization on terrestrial condition. Occurrence of laterite
on a flat surface of bedrock indicate that a presence of flat morphology during the formation of laterite.


Keywords


Laterite; bauxite; petrography; geochemistry; dolerite; Şarkikaraağaç; Turkey

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