Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 1, 105-120 pp


The Yarpuz (Kakliktas) bauxite deposit is located in Antalya region southern Turkey;
35 km to the south of Seydisehir and 180 km to the north of Antalya. It is one of the
bauxite deposits with the highest silica modulus (Al2O3%60.26 /SiO2%1.74=34.63)
outcropping in the Central Taurus Mountains.

The Upper Cretaceous Katrangedigi formation forms the basement and, comprises
carbonate rocks. The bauxites were deposited in the paleo-karstic depressions developed
at the upper part of the Katrangediği carbonate and, was overlain by the carbonate of the
Upper Cretaceous (Senonien- Maestrichtien) Dogankuzu formation.

The paleo-karstic depression bearing ore has a NE-SW aligment and ellipsoidal shape
with 150 m of length and 30 m of width. Its average depth is 4 m and its deepest part is
12 m. The lense shaped ore deposit dips in accordance with the dip of limestone
(N280W, 280SW). While the base of the ore deposit is highly irregular, its top is
relatively flat. Bauxite cemented brecciated level (approximately 40 m) occur at the
base of the ore deposit. With this shape, the ore deposit can be classified as pocket type
allocton-semi allocton ore deposit.

In the deposit, two types of elements, mostly massive and partially ferro bauxites have
been identified. The massive bauxite is uniformly distributed within the deposit.
Whereas, the ferro-bauxite is mainly condensed at the bottom of the deposit. The
mineralogical analyses showed that the most common aluminum ore mineral is
boehmite and, in lesser amount, diaspore and gibbsite accompany it. There are also
kaolinite, hematite, goethite, pyrite, quartz, calcite, anatase (rare amount), rutile (rare
amount), tridymite (rare amount) and, markazite, lepidocrocite, pyrolusite and
psilomelane in very small amounts. Based on these data, the deposit is classified as
boehmitic-type deposit.

Keywords: Akseki, bauxite, bohmite, karst, Middle Taurides, mineralogy, Yarpuz-Turkey.

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