The Ontong Java and Manihiki oceanic plateaus are believed to have formed through high-degree melting of a mantle plume head. Boninite-like, low-Ti basement rocks at Manihiki, however, imply a more ...

This is a preview. Log in through your library . Abstract Quartz-monzodiorite is generally considered to represent the parent magma of high-Mg quartz-monzodiorite plutonic suites; thus such suites are ...

What is the chemical composition of the Earth's interior? Because it is impossible to drill more than about ten kilometres deep into the Earth, volcanic rocks formed by melting Earth's deep interior ...