Magmatic graphite in dolomite carbonatite at Pogranichnoe, North Transbaikalia, Russia

Magmatic graphite in dolomite carbonatite at Pogranichnoe, North Transbaikalia, Russia

A recently discovered dolomite carbonatite at Pogranichnoe, North Transbaikalia, Russia, dated at 624 +/- 3 Ma, contains xenoliths of calcite-bearing dolomite carbonatite with graphite spherulites. Apatite and aegirine are the other rock-forming minerals. Chemically the carbonatites are ferrocarbona...

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Veröffentlicht in:Contributions to mineralogy and petrology 2007-03, Vol.153 (3), p.339-353
Hauptverfasser: Doroshkevich, A. G., Wall, F., Ripp, G. S.
Format: Artikel
Sprache:eng
Schlagworte:
Calcite
Dolomite
Graphite
Magma
Mineralogy
Petrology
Redox reactions
Stable isotopes
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Zusammenfassung:A recently discovered dolomite carbonatite at Pogranichnoe, North Transbaikalia, Russia, dated at 624 +/- 3 Ma, contains xenoliths of calcite-bearing dolomite carbonatite with graphite spherulites. Apatite and aegirine are the other rock-forming minerals. Chemically the carbonatites are ferrocarbonatite and ferruginous calciocarbonatite. The graphite forms
ISSN:0010-7999
1432-0967
DOI:10.1007/s00410-006-0150-z