After the discovery of metamorphic coesite in crustal rocks from the Western Alps (Italy) and
the Western gneiss region (Norway) in the mid 1980s of the last century, metamorphic …

Coesite is reported for the first time from the Caledonide orogen. It occurs as inclusions in
clinopyroxene in the dolomite-eclogite at Grytting, Norway, and provides valuable new …

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 …

We present partial melting experiments at 2–3 GPa on a basaltic pyroxenite (G2) similar in
composition to typical oceanic crust. The 3.0 GPa solidus is located at 1310±12° C and the …

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 …

Widespread evidence for ultrahigh‐pressure (UHP) metamorphism is reported in the Dulan
eclogite‐bearing terrane, the North Qaidam–Altun HP–UHP belt, northern Tibet. This …

Electrostatic potentials and Pauling bond strengths have been calculated for a group of
oxygen and hydroxyl sites in high-pressure silicate and oxide phases. The O1 position in β …

The geometric transformation of a descending plate, such as from steep to flat subduction in
response to a change from normal to overthickened oceanic crust during subduction, is a …

The oxygen fugacity (f O 2) at which carbonate-bearing melts are reduced to either graphite
or diamond in synthetic eclogite compositions has been measured in multi-anvil …

Earth is the water planet. Liquid water covers more than 70% of the surface and dominates
all surface processes, geological, meteorological, and biological. However the hydrosphere …