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ULRYCH, J. KRMÍČEK, L. TESCHNER, C. SKÁLA, R. ADAMOVIČ, J. ĎURIŠOVÁ, J. KŘÍŽOVÁ, Š. KUBOUŠKOVÁ S. RADOŇ, M.
Original Title
Chemistry and Sr–Nd isotope signature of amphiboles of the magnesio-hastingsite-pargasite-kaersutite series in Cenozoic volcanic rocks: Insight into lithospheric mantle beneath the Bohemian Massif
Type
journal article in Web of Science
Language
English
Original Abstract
Amphibole phenocrysts and xenocrysts from Cenozoic volcanic rocks of the Bohemian Massif (BM) belong to the magnesio-hastingsite-pargasite-kaersutite series. Their host rocks are mostly basaltic lavas, dykes and breccia pipe fills, less commonly also felsic rocks from rift zones along lithospheric block boundaries of the BM. The calculated p–T conditions suggest that almost all amphiboles crystallized in a relatively narrow temperature range (1020–1100 °C) at depths of 20–45 km (0.7–1.2 GPa) during the magma ascent. The initial 143Nd/144Nd and 87Sr/86Sr ratios of amphiboles (0.51266–0.51281 and 0.70328–0.70407, respectively) are similar to those of their whole rocks (0.51266–0.51288 and 0.70341–0.70462, respectively). This testifies to locally elevated proportions of recycled Variscan crustal material during melting of mantle peridotites rich in clinopyroxene–amphibole veins. These veins were formed by metasomatic fluids enriched in High Field Strength Elements and are isotopically similar to EM-1 mantle type.
Keywords
Bohemian Massif; Cenozoic volcanic rocks; Ti-amphibole; Sr–Nd isotopes; mantle metasomatism
Authors
ULRYCH, J.; KRMÍČEK, L.; TESCHNER, C.; SKÁLA, R.; ADAMOVIČ, J.; ĎURIŠOVÁ, J.; KŘÍŽOVÁ, Š.; KUBOUŠKOVÁ S.; RADOŇ, M.
Released
19. 7. 2018
Publisher
Elsevier
Location
Amsterdam
ISBN
0024-4937
Periodical
LITHOS
Year of study
312–313
Number
2018
State
Kingdom of Norway
Pages from
308
Pages to
321
Pages count
14
URL
https://www.sciencedirect.com/science/article/pii/S0024493718301749
BibTex
@article{BUT149609, author="Jaromír {Ulrych} and Lukáš {Krmíček} and Claudia {Teschner} and Skála {Roman} and Jiří {Adamovič} and Jana {Ďurišová} and Šárka {Křížová} and Simona {Kuboušková} and Miroslav {Radoň}", title="Chemistry and Sr–Nd isotope signature of amphiboles of the magnesio-hastingsite-pargasite-kaersutite series in Cenozoic volcanic rocks: Insight into lithospheric mantle beneath the Bohemian Massif", journal="LITHOS", year="2018", volume="312–313", number="2018", pages="308--321", doi="10.1016/j.lithos.2018.05.017", issn="0024-4937", url="https://www.sciencedirect.com/science/article/pii/S0024493718301749" }