MICRO-TEXTURAL FEATURES OF THE SANDSTONES IN THE ÜZÜMDERE FORMATION (NORTH OF AKSEKİ, ANTALYA)

Year 1995, Volume: 117 Issue: 117, 41 - 48, 01.10.1995

Turhan Ayyıldız Erdoğan Tekin Nurettin Sonel Mehmet Bülbül

Abstract

Üzümdere formation, Liassic aged
is the oldest unit of the paraautochthonous sequence in the region and located
within the Anamas-Akseki carbonate platform Lithological units cosist of
sandstones and limestone, claystone, and conglomerates. The Üzümdere sandstones
are claret-green in color, medium-thick bedded, well sorted, and highly
fractured. The unit is petrographically described as quartz arenite-quartz
wacke and sublitharenite based on the classification of Folk (1968). X-ray
diffractometry studies have revealed that illite, kaolinite, and
montmorillonite are the main clay minerals in the sandstones. Scanning electron
microscope (SEM) and x-ray micro analyses (EDS) performed on some samples
indicated that the development of cement in these rocks are of calcite,
dolomite (?), iron oxide, chlorite and kaolinite. Moreover, calcite and
iron-oxide are developed as filling the pores within the fractures. The unit,
in which authigenic clay occurrences and quartz overgrowths are observed, has a
poor porosity.

Keywords

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