Author: Burhan DAVARCIOĞLU, Refik KAYALI
Publishing Date: 2007
Volume 22 Issue 1-2
The clay specimens taken from Aksaray-Guzelyurt studied area taking place in the southeast part of Aksaray province in the Central Anatolia Region have been investigated by means of FT-IR spectroscopy. Firstly, the FT-IR spectra of the clays known as standard clays such as illite, mixed layered illite-smectite, beidellite, kaolinite, chlorite (ripidolite), nontronite, montmorillonite have been taken, and then the spectra of illite+quartz+feldspar, quartz+feldspar mineral associations have been taken together with the standard clays. Minerals in every clay sample have been determined by comparing the spectra of the samples mentioned above with the spectra of the clay samples taken from studied area. It has been observed that the existence of the O-H Al-Al-OH, Si-O-Al and Si-O-Si groups in the FT-IR spectrum measurements of the samples belonging to the lower, middle and upper levels of Guzelyurt clay profiles. In addition, it has been found that Guzelyurt clay samples included quartz, illite (T-O-T), kaolinite and amorf silica, and they have T-O or O-T structure. The main clay mineral in the clay samples is kaolinite. Characteristic bands of illite mineral in middle level clays have been observed at 1030 and 914 cm-1 while characteristic bands of kaolinite mineral in lower and upper levels clays are being observed at 3679, 3655, 3623, 942 and 754 cm-1.
Key Words: Aksaray-Guzelyurt clays; FT-IR; Kaolinite.