EXTREMELY AL-DEPLETED CHLORITES FROM DOLOMITE CARBONATITES OF THE KOVDOR ULTRAMAFIC-ALKALINE COMPLEX, KOLA PENINSULA, RUSSIA
Sign Up to like & getrecommendations! Published in 2020 at "Clays and Clay Minerals"
DOI: 10.1007/s42860-019-00055-8
Abstract: The problem to be solved is whether Al is a necessary component of Fe-Mg chlorites. Very unusual Al-depleted and Fe-enriched trioctahedral chlorites with the empirical formulae Na 0.05 Ca 0.05 (Fe 2+ 3.01 Mg 2.01… read more here.
Keywords: ultramafic alkaline; kola peninsula; depleted chlorites; carbonatites kovdor ... See more keywords
Ultramafic Alkaline Rocks of Kepino Cluster, Arkhangelsk, Russia: Different Evolution of Kimberlite Melts in Sills and Pipes
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DOI: 10.3390/min11050540
Abstract: To provide new insights into the evolution of kimberlitic magmas, we have undertaken a detailed petrographic and mineralogical investigation of highly evolved carbonate–phlogopite-bearing kimberlites of the Kepino cluster, Arkhangelsk kimberlite province, Russia. The Kepino kimberlites… read more here.
Keywords: ultramafic alkaline; kepino cluster; evolution; cluster arkhangelsk ... See more keywords
The Tajno ultramafic-alkaline-carbonatite massif, NE Poland: a review. Geophysics, petrology, geochronology and isotopic signature
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DOI: 10.7306/gq.1535
Abstract: This paper reviews all available geological data on the Tajno Massif that intruded the Paleoproterozoic crystalline basement of NE Poland (Mazowsze Domain) north of the Teisseyre-Tornquist Zone, on the East European Craton. This massif (and… read more here.
Keywords: geochronology; massif; ultramafic alkaline; petrology ... See more keywords