Geochemistry of tholeiitic basalts from the Nyos volcano in the Oku Volcanic Group (Cameroon Volcanic Line), west Africa: constraints on petrogenesis

Asobo N.E. Asaah; 横山 哲也; Festus T. Aka; 臼井 寛裕; Mengnjo J. Wirmvem; Boris Chako Tchamabe; 大場 武; Gregory Tanyileke; Joseph V. Hell

doi:10.14862/geochemproc.60.0.60.0

2013年度日本地球化学会第60回年会講演要旨集

セッションID: 1D10

DOI https://doi.org/10.14862/geochemproc.60.0.60.0

会議情報

主催: 日本地球化学会年会要旨集

G14 固体地球化学（全般）

Geochemistry of tholeiitic basalts from the Nyos volcano in the Oku Volcanic Group (Cameroon Volcanic Line), west Africa: constraints on petrogenesis

*Asobo N.E. Asaah, 横山哲也, Festus T. Aka, 臼井寛裕, Mengnjo J. Wirmvem, Boris Chako Tchamabe, 大場武, Gregory Tanyileke, Joseph V. Hell

著者情報

キーワード: tholeiitic basalts, petrogenesis, Nyos Volcano, alkaline basalts

会議録・要旨集フリー

詳細

抄録

The Nyos volcano located in the Oku Volcanic Group (OKVG) of the CVL is unique because it hosts basanite and alkaline basalts in association with tholeiitic basalts. The aim of this study is to constrain the petrogenesis of these rock types from their geochemical characteristics. Similarity in Zr/Hf and Nb/Ta ratios of both alkaline and tholeiitic basalts strongly indicated their derivation from the same mantle source.

責任著者(Corresponding author)

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