The Scotia Sea and surrounding Scotia Arc have evolved over the past 40 Ma, by extension
behind an east-migrating subduction zone, at the boundary between the South American …

Ophiolites are important archives of oceanic crust development and preservation in the rock
record, and the Alpine-Himalayan Orogenic Belt (AHOB) is one of the most comprehensive …

A global set of present plate boundaries on the Earth is presented in digital form. Most come
from sources in the literature. A few boundaries are newly interpreted from topography …

The compositions of back-arc basin basalts (BABB) can usefully be viewed as products of
four factors:(1) the composition of inflowing mantle and its preconditioning during flow to the …

The Mariana, east Scotia, Lau, and Manus back-arc basins (BABs) have spreading rates that
vary from slow (< 50 mm/yr) to fast (> 100 mm/yr) and extension axes located from 10 to 400 …

Miyashiro (1973) famously initiated a debate on the tectonic setting of ophiolite complexes
by proposing that 'the Troodos ophiolitic complex was probably formed in an island arc'. This …

The development of ideas on modern analogues for ophiolite complexes can be divided into
three parts. In the first (1963 to 1972), ophiolites were mainly viewed as on-land analogues …

Subduction zone magmas are characterized by high concentrations of H2O, presumably
derived from the subducted plate and ultimately responsible for melting at this tectonic …

The customary practice for displaying REE abundances is to normalize them to chondritic
abundances and then to plot these normalized abundances in order of atomic number, Z …

Abstract The East Scotia Ridge is an active back-arc spreading centre located to the west of
the South Sandwich island arc in the South Atlantic Ocean, consisting of nine main …