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Non-chondritic sulphur isotope composition of the terrestrial mantle
TLDR
It is shown that the mantle, as sampled by mid-ocean ridge basalts from the south Atlantic ridge, displays heterogeneous 34S/32S ratios, directly correlated to the strontium and neodymium isotope ratios 87Sr/86Sr and 143Nd/144Nd.
Chemical Sample Processing for Combined Selenium Isotope and Selenium‐Tellurium Elemental Investigation of the Earth's Igneous Reservoirs
The redox‐sensitive, chalcophile, and volatile Se stable isotope system offers new perspectives to investigate the origin and evolution of terrestrial volatiles and the roles of magmatic and
Hydrothermal 15N15N abundances constrain the origins of mantle nitrogen
TLDR
It is proposed that high mid-ocean-ridge basalt and plume δ15N values may both be dominantly primordial features, and the effect of subduction on the deep nitrogen cycle may be less important than has been suggested by previous investigations.
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