On the formation of element carbon during decomposition of CaCO3 at High P-T parameters under reducing conditions期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

On the formation of element carbon during decomposition of CaCO3 at High P-T parameters under reducing conditions

Authors:	Chepurov A. I. Sonin V. M. Zhimulev E. I. Chepurov A. A. Tomilenko A. A.

Affiliation:	1.Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia ;

Abstract:	This work presents data on the experimental study of CaCO₃ stability (3.0–5.5 GPa; 1300–1400°C) under reducing conditions modeling the presence of metallic iron. It is established that CaCO₃ is stable at the above P-T parameters under reducing conditions (in the presence of metallic Ti). CaCO₃ decomposed only when it chemically interacted with iron, forming Ca-ferrites and releasing solid carbon in the form of graphite in the closed system (in sealed Pt-ampoules).

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