Evolution of the sources of Moroccan volcanism during the Neogene
Details
Serval ID
serval:BIB_33FDF45C3003
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Evolution of the sources of Moroccan volcanism during the Neogene
Journal
Comptes Rendus de l'Académie des Sciences - Série II
ISSN-L
1251-8050
Publication state
Published
Issued date
1999
Peer-reviewed
Oui
Volume
329
Pages
95-102
Language
english
Notes
ISI:000082287300003
Abstract
New major and trace element analyses, Sr-Nd isotopic data and K-40-Ar-40
ages on Neogene and Quaternary lavas from Morocco lead to the conclusion
that the observed temporal changes from calc-alkaline to transitional
and finally alkaline magmatic activity reflect the contributions of
distinct sources. According to our model, magmas originally derived from
the melting of an European/Western Mediterranean-type asthenospheric
mantle source interact during their ascent with either a subcontinental
Ronda - Beni Bousera-/type lithospheric mantle (alkaline magmas) or a
lithospheric mantle containing a crustal component, and the overlying
continental crust (calc-alkaline and, to a lesser extent, transitional
magmas). ( (C) Academie des sciences/Elsevier, Paris.).
ages on Neogene and Quaternary lavas from Morocco lead to the conclusion
that the observed temporal changes from calc-alkaline to transitional
and finally alkaline magmatic activity reflect the contributions of
distinct sources. According to our model, magmas originally derived from
the melting of an European/Western Mediterranean-type asthenospheric
mantle source interact during their ascent with either a subcontinental
Ronda - Beni Bousera-/type lithospheric mantle (alkaline magmas) or a
lithospheric mantle containing a crustal component, and the overlying
continental crust (calc-alkaline and, to a lesser extent, transitional
magmas). ( (C) Academie des sciences/Elsevier, Paris.).
Create date
11/12/2012 15:25
Last modification date
20/08/2019 13:20
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