Carbonatite - Wikipedia
Carbonatites are unusual igneous rocks composed predominantly of carbonate minerals. Most carbonatites tend to include some silicate mineral fraction; by definition an igneous rock …
Carbonatites: Classification, Sources, Evolution, and Emplacement ...
Carbonatites are igneous rocks formed in the crust by fractional crystallization of carbonate-rich parental melts that are mostly mantle derived. They dominantly consist of carbonate minerals …
Origin of carbonatites—liquid immiscibility caught in the act
2022年5月24日 · Carbonatites are fascinating igneous rocks and their genesis remains enigmatic. Here the authors show that a Ca-rich carbonatite melt formed by liquid immiscibility from a …
Carbonatites: related ore deposits, resources, footprint, and ...
2018年10月9日 · Carbonatites are defined by the International Union of Geological Sciences (IUGS) as igneous rocks containing more than 50% modal primary carbonates (Le Maitre …
Carbonatites: Contrasting, Complex, and Controversial
2021年10月1日 · Carbonatites are unique, enigmatic, and controversial rocks directly sourced from, or evolved from, mantle melts. Mineral proportions and chemical compositions of …
Carbonatites in China: A review - ScienceDirect
2006年9月15日 · There are 27 known occurrences of carbonatites in China. Brief descriptions are given of all occurrences including geographical coordinates, geological setting, associated …
Carbonatite - an overview | ScienceDirect Topics
Carbonatite is an igneous rock consisting chiefly of carbonate minerals crystallized from a carbonate magma. Carbonatites are often heterogeneous in outcrop, and any magmatic rock …
Types of carbonatites: Geochemistry, genesis and mantle sources
2021年4月1日 · The geochemistry of C, O, Sr, and Nd isotopes shows that carbonatite complexes, depending on their geotectonic setting (platform surrounding, orogenic areas and …
CARBONATITES AND CARBONATITES AND CARBONATITES
2005年12月1日 · Carbonatites are redefined using a mineralogical-genetic classification and divided into two groups: primary carbonatites, and carbothermal residua. Attention is drawn to …
Calcium isotopic evidence for the mantle sources of carbonatites …
2020年6月3日 · Carbonatites are highly distinctive igneous rocks, containing more than 50% of carbonate minerals and limited silica. They are often associated with silicate rocks, range in …