| ULRYCH, Jaromír, Jaroslav DOSTAL, Jiří ADAMOVIČ, Emil JELÍNEK, Petr ŠPAČEK, Ernst HEGNER and Kadosa BALOGH. Recurrent Cenozoic volcanic activity in the Bohemian Massif (Czech Republic). Lithos. 2011, vol. 123, 1-4, p. 133-144. ISSN 0024-4937. Available from: https://dx.doi.org/10.1016/j.lithos.2010.12.008. |
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@article{977052,
author = {Ulrych, Jaromír and Dostal, Jaroslav and Adamovič, Jiří and Jelínek, Emil and Špaček, Petr and Hegner, Ernst and Balogh, Kadosa},
article_number = {1-4},
doi = {http://dx.doi.org/10.1016/j.lithos.2010.12.008},
keywords = {Bohemian Massif; Cenozoic; Alkaline volcanism; Paleostress fields; Rift Mantle},
language = {eng},
issn = {0024-4937},
journal = {Lithos},
title = {Recurrent Cenozoic volcanic activity in the Bohemian Massif (Czech Republic)},
volume = {123},
year = {2011}
}
TY - JOUR
ID - 977052
AU - Ulrych, Jaromír - Dostal, Jaroslav - Adamovič, Jiří - Jelínek, Emil - Špaček, Petr - Hegner, Ernst - Balogh, Kadosa
PY - 2011
TI - Recurrent Cenozoic volcanic activity in the Bohemian Massif (Czech Republic)
JF - Lithos
VL - 123
IS - 1-4
SP - 133-144
EP - 133-144
SN - 00244937
KW - Bohemian Massif
KW - Cenozoic
KW - Alkaline volcanism
KW - Paleostress fields
KW - Rift Mantle
N2 - Cenozoic anorogenic volcanism of the Bohemian Massif is an integral part of the Central European Volcanic Province. The temporal and spatial distribution of volcanic rocks in the Bohemian Massif, their geochemistry and mineralogy as well as their tectonic setting and paleostress data are used to characterize and classify this volcanic activity. Three main volcanic periods can be distinguished based on K–Ar data and known paleostress fields: (i) pre-rift (79–49 Ma), (ii) syn-rift (42–16 Ma) and (iii) late-rift (16–0.3 Ma), with the youngest period further subdivided into three episodes. The dominant mafic rock types (N7 wt.% MgO) of all periods are of nephelinite–basanite/tephrite composition. The exceptions are suites of melilitic ultramafic rocks of the pre-rift period in northern Bohemia and of the final episode of the late-rift period in western Bohemia. The most voluminous are volcanic rocks of the syn-rift period occurring in the Ohře Rift Graben. The initial 87Sr/86Sr (0.7032 to 0.7050) and 143Nd/144Nd (0.51264 to 0.51301) ratios of the mafic volcanic rocks of the Bohemian Massif are characteristic of magmas derived from a sub-lithospheric mantle source. The isotopic ratios resemble those of the HIMU mantle source (206Pb/204Pb ca. 19 to 20). These rocks have themost isotopically depleted compositions among the Central European Volcanic Province volcanics.
ER -
ULRYCH, Jaromír, Jaroslav DOSTAL, Jiří ADAMOVIČ, Emil JELÍNEK, Petr ŠPAČEK, Ernst HEGNER and Kadosa BALOGH. Recurrent Cenozoic volcanic activity in the Bohemian Massif (Czech Republic). \textit{Lithos}. 2011, vol.~123, 1-4, p.~133-144. ISSN~0024-4937. Available from: https://dx.doi.org/10.1016/j.lithos.2010.12.008.
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