Ferric iron in CaTiO₃ perovskite as an oxygen barometer for kimberlitic magmas : experimental calibration and applications
An oxygen barometer to estimate fO2 during the crystallization of kimberlites is developed using the Fe content of perovskite (Pv), a common groundmass phase in these rocks. With increasing fO2, more Fe exists in the kimberlitic liquid as Fe3+, and thus partitions into Pv, which accepts only Fe3+ in...
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| Language: | English en |
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2009
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| Online Access: | http://hdl.handle.net/1828/1764 |