Spectral characterization of non-clay minerals found in the clays (Central Anatolian-Turkey)

International Journal of Physical Sciences

Burhan Davarcioglu¹ 

关键词: Non-clay minerals;    FTIR;    XRD;    carbonates;    zeolites;    feldspars.;   

DOI  :  10.5897/IJPS10.615

学科分类：物理（综合）

来源: Academic Journals

【 摘 要 】

Clays contain varying amounts of co-occurring non-clay minerals and lesser amounts of organic materials. Characterization of the clays in the Central Anatolian region (Turkey) was carried out using the spectroscopic techniques and results were qualitatively interpreted in terms of non-clay minerals found in the clays. The DTA-TGA measurements have been carried out for determinations of thermal behaviour of the clay samples. The FTIR spectra of clays known as standard clays such as illite, illite-smectite mixed layer, montmorillonite, Ca-montmorillonite, Na-montmorillonite, kaolinite, chlorite (ripidolite),palygorskitewere first taken, and then the spectra ofanhydrite, gypsum, illite+quartz+feldspar, quartz+feldspar were taken together with the standard clays. The minerals present in the samples were identified by comparing their FTIR spectra with those of the standard clay minerals and XRD results. Silica polymorphs, quartz being the most abundant, zeolites, feldspars, calcite, dolomite, and magnesite are the most commonnon-clayoccurringin association with the clays. It is observed that bentonites are more frequently associated with silica, zeolites,feldspars, calcite, and dolomite,while kaolinites are often accompanied by silica, calcite and alunite. However, magnesite, dolomite and calcite co-occur commonly with sepiolite and palygorskite.

【 授权许可】

CC BY