Carbonatites are igneous rocks formed in the crust by fractional crystallization of carbonate-
rich parental melts that are mostly mantle derived. They dominantly consist of carbonate …

Earth is unique among the terrestrial planets in our solar system in having a fluid envelope
that fosters life. The secrets behind Earth's habitable climate are well-tuned cycles of carbon …

Carbon geochemistry of mantle-derived samples suggests that the fluxes and reservoir sizes
associated with deep cycle are in the order of 1012–13gC/yr and 1022–23g C, respectively …

Synthetic spinel harzburgite and lherzolite assemblages were equilibrated between 1040
and 1300° C and 0.3 to 2.7 GPa, under controlled oxygen fugacity (f O 2). f O 2 was buffered …

This study presents new major and trace element and Sr-Nd isotopic results for a suite of
Miocene-Recent mafic lavas from the Kivu volcanic province in the western branch of the …

Kelps are highly productive seaweeds found along most temperate latitude coastlines, but
the fate and importance of kelp production to nearshore ecosystems are largely unknown …

Subducted crust refertilizes the subarc mantle wedge as well as the deep convecting mantle.
In the subarc region, mass transfer occurs mainly through fluids, melts, or supercritical …

Carbonatites are familiar to students of petrology as rare igneous rocks formed
predominantly of carbonate, whose only modern expression is a single active volcano that …

Petrological and geochemical data are presented for a suite of ultramafic xenoliths
(lherzolites and wehrlites) from La Grille volcano, Grande Comore island. These xenoliths …

Deep Earth degassing is a critical forcing factor for atmospheric CO2 variations and
palaeoclimate changes in Earth's history. For the Cenozoic, the key driving mechanism of …