Petrology of spinel lherzolite xenoliths and host basaltic lava from Ngao Voglar volcano, Adamawa Massif (Cameroon Volcanic Line, West Africa): equilibrium conditions and mantle characteristics

Xenoliths of olivine websterite, spinel lherzolite and spinel harzburgite occur in phreatomagmatic deposits from Lake Nyos Maar (Temdjim 2004a, in print); websterite, orthopyroxenite, and lherzolite xenoliths occur in basaltic lava flows from the Oku Massif (Matsukage and Oya 2010). [...] nodules of...

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Bibliographic Details
Published in:Journal of geosciences (Prague) 2011-01, Vol.56 (4), p.375-387
Main Authors: Nkouandou, O.F., Temdjim, R.
Format: Article
Language:English
Subjects:
Geology
Lava
Lithosphere
Mineralogy
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Summary:Xenoliths of olivine websterite, spinel lherzolite and spinel harzburgite occur in phreatomagmatic deposits from Lake Nyos Maar (Temdjim 2004a, in print); websterite, orthopyroxenite, and lherzolite xenoliths occur in basaltic lava flows from the Oku Massif (Matsukage and Oya 2010). [...] nodules of dunite, wehrlite and clinopyroxenite have been collected in basanites from Mount Cameroon (Ngounouno and Déruelle 2007; Wandji et al. 2009), accompanied by a subordinate number of composite samples, which consist of 1-cm-thick pyroxenite layers in peridotite (Temdjim 2005; Matsukage and Oya 2010).
ISSN:1802-6222
1803-1943
DOI:10.3190/jgeosci.108