Calculation of quarzite crystallinity index by infrared absorption spectrum

18th International Scientific Symposium in Honour of Academician M. A. Usov: Problems of Geology and Subsurface Development

Razva, O.^1 ; Anufrienkova, A.^1 ; Korovkin, M.^1 ; Ananieva, L.^1 ; Abramova, R.^1

Tomsk Polytechnic University, Tomsk, Russia^1

关键词: Alteration rates;    Crystallinity index;    Infrared spectroscopy method;    Quarzite;    Relative value;    West Siberia;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/21/1/012006/pdf
DOI  :  10.1088/1755-1315/21/1/012006

来源: IOP

【 摘 要 】

Quarzites retrieved from the Sopks-248 deposit and Belokamenka deposit, Antonovsk field cluster (Russia, West Siberia) were studied by the infrared spectroscopy method. The silicate thickness alteration rate was determined and the most crystalline quartzite variations were identified by defining the crystallinity index Kiaccording infrared absorption spectrum. To calculate "crystallinity index" the ratio of quintet peaks of 778 cm-1as to peaks of 695 cm-1were applied. It should be noted that the most crystalline quartzite variations are characterized by the relative value of crystallinity index.