The inception of plate tectonics on Earth and its subsequent evolution are discussed on the
basis of theoretical considerations and observational constraints. The likelihood of plate …

Basalts and basaltic rocks are the most abundant igneous rocks on the earth and their
petrologic and geochemical studies have formed our knowledge base on the thermal …

Much of our understanding of ocean ridges has come from the collection and analysis of
glasses recovered from ridge axes. However, applying the resulting methodologies to …

Compositional models of the Earth are critically dependent on three main sources of
information: the seismic profile of the Earth and its interpretation, comparisons between …

Non-arc basalts of Archean and Proterozoic age have model primary magmas that exhibit
mantle potential temperatures TP that increase from 1350° C at the present to a maximum …

This paper attempts to bridge this gap by presenting a User's Guide to, basalt discrimination
器 diagrams. It first deals with the requirements of sample collection, geochemical analysis …

An upgrade of the PRIMELT algorithm for calculating primary magma composition is given
together with its implementation in PRIMELT3 MEGA. xlsm software. It supersedes …

We derive an estimate for the chemical composition of the depleted MORB mantle (DMM),
the source reservoir to mid-ocean ridge basalts (MORBs), which represents at least 30% the …

We model 56 segments of subduction zones using kinematically defined slabs based on
updated geometries from Syracuse and Abers (2006) to obtain a comprehensive suite of …

We present a comprehensive geochemical data set for the most recent volcanics from the
Mariana Islands, which provides new constraints on the timing and nature of fluxes from the …