Orta Anadolu Bölgesi Aksaray- Güzelyurt kaolinitik killerinin FT-IR spektropisi ile incelenmesi

Orta Anadolu Bölgesi Aksaray ilinin güney doğusunda bulunan Güzelyurt çalışma alanından alınan kil örnekleri FT-IR spektroskopisi ile incelenmiştir. İlk önce, standart killer olan illit, karışık tabakalı illit-smektit, baydelit, kaolinit, klorit (ripidolit), nontronit, montmorillonit ve daha sonra standart killerle birlikte bulunabilecek diğer illit+kuvars+feldispat, kuvars+feldispat mineral topluluklarının infrared spektrumları alınmıştır. Alınan bu spektrumlar, Güzelyurt kil örnekleri için alınan spektrumlarla karşılaştırılarak her bir kil örneğinin içerdiği mineraller tespit edilmiştir. Buna göre, Güzelyurt kil profilinin alt, orta ve üst seviyeye ait örneklerinin FT-IR spektrumunda O-H, Al-Al- OH, Si-O-Al ve Si-O-Si grupları gözlenmiştir. Bunlara ilaveten, bu örneklerin kuvars, illit (T-O-T), kaolinit, amorf silis içerdikleri ve kil iskeletinin T-O ya da O-T yapılı oldukları saptanmıştır. Kil örneklerinin karışımmdaki ana kil minerali ise kaolinit olarak belirlenmiştir. Alt ve üst seviyelere ait killerde kaolinit mineralinin 3679, 3655, 3623, 942 ve 754 $cm^{-1}$ deki karakteristik bandları gözlenirken, orta seviyeye ait killerde illit mineralinin 1030 ve 914 $cm^{-1}$ deki karakteristik bandları gözlenmiştir.

Investigation of Central Anatolia Aksaray-Guzelyurt region kaolinitic clays by FT-IR spectroscopy

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 A1-A1-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 Güzelyurt clay profiles. In addition, it has been found that Güzelyurt 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 $cm^{-1}$.

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