Abstract The Transmexican Volcanic Belt (TMVB) is the magmatic expression of one of the
most complex convergent margins on the planet, and as such constitutes a prime location for …

Petrological and geochemical data are reported for basalts and silicic peralkaline rocks from
the Quaternary Gedemsa volcano, northern Ethiopian rift, with the aim of discussing the …

The oceanic-island magmatic systems of the Atlantic Ocean exhibit significant diversity in
their respective sizes, ages, and the compositional ranges of their eruptive products …

SHRIMP U–Pb zircon age, geochemical and Sm–Nd isotopic results are reported for the
Mamianshan volcanic rocks in the Cathaysia Block of southeastern South China. The …

The phase relationships of three peralkaline rhyolites from the Kenya Rift have been
established at 150 and 50 MPa, at oxygen fugacities of NNO− 1· 6 and NNO+ 3· 6 (log fO 2 …

A striking feature of the recent Asela–Ziway magmatism (< 1.8 Ma) is the bimodality (basalts–
pantellerites) of the oldest and youngest volcanic products and the unimodal character …

The Ethiopian continental flood basalt (CFB) province (∼ 30 Ma,> 3× 105 km3) was formed
as the result of the impingement of the Afar mantle plume beneath the Ethiopian lithosphere …

Trachyte and peralkaline rhyolite (pantellerite and comendite) frequently comprise the felsic
end-member in bimodal suites in continental rift and oceanic island settings. In these …

Whereas the majority of eruptions at oceanic spreading centers produce lavas with relatively
homogeneous mid-ocean ridge basalt (MORB) compositions, the formation of tholeiitic …

The silicic peralkaline volcanoes of the East African Rift are some of the least studied
volcanoes on Earth. Here we bring together new constraints from fieldwork, remote sensing …