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

被引：22
|
作者：
Chepurov, A. I. [1 ]
Sonin, V. M. [1 ]
Zhimulev, E. I. [1 ]
Chepurov, A. A. [1 ]
Tomilenko, A. A. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Sobolev Inst Geol & Mineral, Novosibirsk, Russia
来源：
DOKLADY EARTH SCIENCES | 2011年 / 441卷 / 02期
关键词：
DIAMOND-FORMATION; HIGH-PRESSURE; TEMPERATURE; OXIDATION;
D O I：
10.1134/S1028334X11120233
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
This work presents data on the experimental study of CaCO3 stability (3.0-5.5 GPa; 1300-1400A degrees 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).
引用
收藏
页码：1738 / 1741
页数：4
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