Oxidising agents in sub-arc mantle melts link slab devolatilisation and arc magmas
Subduction zone magmas are more oxidised on eruption than those at mid-ocean ridges.
This is attributed either to oxidising components, derived from subducted lithosphere (slab) …
This is attributed either to oxidising components, derived from subducted lithosphere (slab) …
[HTML][HTML] The magnesium isotopic composition of the mantle
In order to better constrain the Mg isotopic composition of the mantle, we have analysed
twenty-eight samples of both oceanic and continental peridotite using a high-precision …
twenty-eight samples of both oceanic and continental peridotite using a high-precision …
Cr-spinel records metasomatism not petrogenesis of mantle rocks
Mantle melts provide a window on processes related to global plate tectonics. The
composition of chromian spinel (Cr-spinel) from mafic-ultramafic rocks has been widely used …
composition of chromian spinel (Cr-spinel) from mafic-ultramafic rocks has been widely used …
Eight good reasons why the uppermost mantle could be magnetic
Abstract Wasilewski et al.(1979) concluded that no magnetic remanence existed in the
uppermost mantle and that even if present, such sources would be at temperatures too high …
uppermost mantle and that even if present, such sources would be at temperatures too high …
Metals in Avachinsky peridotite xenoliths with implications for redox heterogeneity and metal enrichment in the Kamchatka mantle wedge
P Kepezhinskas, N Berdnikov, N Kepezhinskas… - Lithos, 2022 - Elsevier
Peridotite xenoliths from the Avachinsky volcano in southern Kamchatka contain diverse
assemblages of native metals and intermetallic compounds associated with primary olivine …
assemblages of native metals and intermetallic compounds associated with primary olivine …
Magnesium isotopic composition of metasomatized upper sub-arc mantle and its implications to Mg cycling in subduction zones
Dehydration of subducting oceanic crust and underlying serpentinized mantle is potentially
the most important source of fluids for element cycling between surface-processed materials …
the most important source of fluids for element cycling between surface-processed materials …
The magnetism of mantle xenoliths and potential implications for sub‐Moho magnetic sources
EC Ferré, SA Friedman… - Geophysical …, 2013 - Wiley Online Library
Mantle xenoliths provide our clearest look at the magnetic mineral assemblages below the
Earth's crust. Previous investigations of mantle xenoliths suggested the absence of …
Earth's crust. Previous investigations of mantle xenoliths suggested the absence of …
Variation in sub-arc mantle oxygen fugacity during partial melting recorded in refractory peridotite xenoliths from the West Bismarck Arc
It is debatable whether oxygen fugacity (fO 2), the usual measure of the oxidation state of a
system, can vary during partial melting in the Earth's mantle or not. Notably, samples of …
system, can vary during partial melting in the Earth's mantle or not. Notably, samples of …
Silica-enriched mantle sources of subalkaline picrite-boninite-andesite island arc magmas
Primary arc melts may form through fluxed or adiabatic decompression melting in the mantle
wedge, or via a combination of both processes. Major limitations to our understanding of the …
wedge, or via a combination of both processes. Major limitations to our understanding of the …
Potassium distribution and isotope composition in the lithospheric mantle in relation to global Earth's reservoirs
Recent analytical advances have provided means to measure potassium (K) isotopes in
various terrestrial materials, but little is known about K distribution and stable isotope …
various terrestrial materials, but little is known about K distribution and stable isotope …