Detail publikace

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

ULRYCH, J. KRMÍČEK, L. TESCHNER, C. SKÁLA, R. ADAMOVIČ, J. ĎURIŠOVÁ, J. KŘÍŽOVÁ, Š. KUBOUŠKOVÁ S. RADOŇ, M.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Bohemian Massif; Cenozoic volcanic rocks; Ti-amphibole; Sr–Nd isotopes; mantle metasomatism

Autoři

ULRYCH, J.; KRMÍČEK, L.; TESCHNER, C.; SKÁLA, R.; ADAMOVIČ, J.; ĎURIŠOVÁ, J.; KŘÍŽOVÁ, Š.; KUBOUŠKOVÁ S.; RADOŇ, M.

Vydáno

19. 7. 2018

Nakladatel

Elsevier

Místo

Amsterdam

ISSN

0024-4937

Periodikum

LITHOS

Ročník

312–313

Číslo

2018

Stát

Norské království

Strany od

308

Strany do

321

Strany počet

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"
}