Hotspot volcanic rocks are formed under conditions that differ from conventional plate
tectonic boundary magmatic processes and are compositionally distinct from mid-oceanic …

Magmatic sulfide deposits can be subdivided into 1) Ni-Cu-PGE deposits, which have
relatively smooth mantle-normalized metal patterns, 2) Ni-Cu-(PGE) deposits, which are …

IGNEOUS ROCKS AND PROCESSES A practical introduction to igneous petrology for
students and practitioners The newly revised Second Edition of Igneous Rocks and …

SHRIMP U–Pb zircon age, geochemical and Nd isotopic data are reported for the
Neoproterozoic Suxiong volcanic rocks in the Kangdian Rift, western South China. These …

Many ocean island basalts (OIB) that have isotopic ratios indicative of recycled crustal
components in their source are silica-undersaturated and unlike silicic liquids produced from …

We present melt and mineral compositions from nominally anhydrous partial melting
experiments at 2–3 GPa on a quartz eclogite composition (G2) similar to average oceanic …

Isobaric partial melting experiments were performed on an Fe-free synthetic composition to
simulate partial melting of subducted oceanic crust. Nominally anhydrous experiments at 3.0 …

Geochemical and isotopic data suggest that the source regions of oceanic basalts may
contain pyroxenite in addition to peridotite. In order to incorporate the wide range of …

The characteristics of magma supply, storage, and transport are among the most critical
parameters governing volcanic activity, yet they remain largely unconstrained because all …

We explore Fe/Mn and Nb/Ta ratios of basalts as potential tracers for differentiating melts of
recycled mafic crustal lithologies from peridotitic melts. Trace elements and Fe/Mn ratios of …