Formation of Esseneite and Kushiroite in Tschermakite-Bearing Calc-Silicate Xenoliths Ejected in Alkali Basalt

Skarnoid calc-silicate xenoliths composed of anorthite, clinopyroxene and Mg-Al spinel occur in alkali basalts of the Pliocene-Pleistocene intra-plate magmatic province in the northern part of the Pannonian Basin. Randomly oriented and elongated pseudomorphs are tschermakite crystals replaced by oli...

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Veröffentlicht in:	Minerals (Basel) 2022-02, Vol.12 (2), p.156
Hauptverfasser:	Reato, Luca, Huraiová, Monika, Konečný, Patrik, Marko, František, Hurai, Vratislav
Format:	Artikel
Sprache:	eng
Schlagworte:	Alkali basalts Aluminosilicates Aluminum Amphiboles Anorthite Apatite Aragonite Augite Basalt Biotite Calcite Calcium aluminum silicates Calcium magnesium silicates Carbonates Chromite Chromium Coal Corundum Crystal structure Crystallization Crystals Diopside Fluorapatite Forsterite Ilmenite Iron Lava Low pressure Magnetite Metamorphic rocks Olivine Plagioclase Pleistocene Pliocene Pyroxenes Sediments Silicates Sodalite Software Spinel
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Zusammenfassung:	Skarnoid calc-silicate xenoliths composed of anorthite, clinopyroxene and Mg-Al spinel occur in alkali basalts of the Pliocene-Pleistocene intra-plate magmatic province in the northern part of the Pannonian Basin. Randomly oriented and elongated pseudomorphs are tschermakite crystals replaced by olivine, spinel and plagioclase. The relict amphibole within the pseudomorphs is characterized by high VIAl, between 1.95 and 2.1, and very low occupancy of the A-site (
ISSN:	2075-163X 2075-163X
DOI:	10.3390/min12020156