The basalts of the 2021 Fagradalsfjall eruption were the first erupted on the Reykjanes
Peninsula in 781 years and offer a unique opportunity to determine the composition of the …

Volatile and stable isotope data provide tests of mantle processes that give rise to mantle
heterogeneity. New data on enriched mid‐oceanic ridge basalts (MORB) show a diversity of …

Abstract International Ocean Discovery Program Expedition 352 to the Bonin forearc drilled
the sequence of volcanic rocks erupted in the immediate aftermath of subduction initiation …

The advent of continuous-flow isotope-ratio mass spectrometry (CF-IRMS) coupled with a
high temperature conversion (HTC) system enabled faster, more cost effective, and more …

Earth's climate transitioned from the greenhouse conditions of the Eocene to the icehouse of
the Oligocene∼ 34 million years ago. Global cooling was triggered by a decrease in …

The early Paleoproterozoic represents a period of rapid changes in Earth systems that could
have affected the stable isotopic composition of seawater. The well-preserved pillow …

The foundations of stable isotope geochemistry were laid in 1947 by Urey's classic paper on
the thermodynamic properties of isotopic substances and by Nier's development of the …

Volcanic eruptions of rhyolitic magma often show shifts from powerful (Vulcanian to Plinian)
explosive episodes to a more gentle effusion of viscous lava forming obsidian flows. Another …

The hydrogen isotope value (δD) of water indigenous to the mantle is masked by the early
degassing and recycling of surface water through Earth's history. High 3 He/4 He ratios in …

Hydration of silicic volcanic glass forms perlite, a dusky, porous form of altered glass
characterized by abundant “onion-skin” fractures. The timing and temperature of perlite …