Research related to international collaboration
HURAI, Vratislav - HURAIOVÁ, Monika - GAJDOŠOVÁ, Michaela - KONEČNÝ, Patrik - SLOBODNÍK, Marek - SIEGFRIED, Pete. Compositional variations of zirconolite from the Evate apatite deposit (Mozambique) as an indicator of magmatic-hydrothermal conditions during post-orogenic collapse of Gondwana. In Mineralogy and Petrology, 2018, vol. 112, no. 3, p. 279-296. (1.664 - IF2017). (2018 - Current Contents). ISSN 0930-0708.
RAVNA, Erling J. Krogh - ZOZULYA, Dmitry - KULLERUD, K. - CORFU, F. - NABELEK, Peter - JANÁK, Marian - SLAGSTAD, Trond - DAVIDSEN, Børre - SELBEKK, Rune S. - SCHERTL, Hans-Peter. Deep-seated Carbonatite Intrusion and Metasomatism in the UHP Tromsø Nappe, Northern Scandinavian Caledonides - a Natural Example of Generation of Carbonatite from Carbonated Eclogite. In Journal of Petrology, 2017, vol. 58, no. 12, p. 2403-2428. (3.280 - IF2016). (2017 - Current Contents). ISSN 0022-3530.
Carbonatites (sensu stricto) are igneous rocks typically associated with continental rifts, being emplaced at relatively shallow crustal levels or as extrusive rocks. Some carbonatites are, however, related to subduction and lithospheric collision zones, but so far no carbonatite has been reported from ultrahigh-pressure metamorphic terrains. In this study (Ravna et al., 2017) we present detailed petrological and geochemical data on carbonatites from the Nappe – an ultrahigh-pressure metamorphic terrain in the Scandinavian Caledonides. We suggest that the primary carbonatite magma resulted from partial melting of a carbonated eclogite at ultrahigh pressure, in a deeply subducted continental slab. Microdiamonds found in gneisses (Janák et al. ,2013) intruded by carbonatite are often associated with carbonates, hence formation of diamond by crystallization from carbonatite melt was likely.