Reconciling early Deccan Traps CO2 outgassing and pre-KPB global climate

A Hernandez Nava, BA Black… - Proceedings of the …, 2021 - National Acad Sciences
A 2 to 4° C warming episode, known as the Latest Maastrichtian warming event (LMWE),
preceded the Cretaceous–Paleogene boundary (KPB) mass extinction at 66.05±0.08 Ma …

Chemical and isotopic analyses of hydrocarbon-bearing fluid inclusions in olivine-rich rocks

NG Grozeva, F Klein… - … Transactions of the …, 2020 - royalsocietypublishing.org
We examined the mineralogical, chemical and isotopic compositions of secondary fluid
inclusions in olivine-rich rocks from two active serpentinization systems: the Von Damm …

Hydrothermal 15N15N abundances constrain the origins of mantle nitrogen

J Labidi, PH Barry, DV Bekaert, MW Broadley, B Marty… - Nature, 2020 - nature.com
Nitrogen is the main constituent of the Earth's atmosphere, but its provenance in the Earth's
mantle remains uncertain. The relative contribution of primordial nitrogen inherited during …

Mineral carbonation of peridotite fueled by magmatic degassing and melt impregnation in an oceanic transform fault

F Klein, T Schroeder, CM John… - Proceedings of the …, 2024 - National Acad Sciences
Most of the geologic CO2 entering Earth's atmosphere and oceans is emitted along plate
margins. While C-cycling at mid-ocean ridges and subduction zones has been studied for …

Carbon stable isotope constraints on CO2 degassing models of ridge, hotspot and arc magmas

C Aubaud - Chemical Geology, 2022 - Elsevier
Carbon dioxide emissions from volcanoes are important parameters to constrain in order to
fully understand the Earth system, especially the effect of volcanic forcing on climate. The …

Abiotic hydrogen (H2) sources and sinks near the Mid-Ocean Ridge (MOR) with implications for the subseafloor biosphere

SL Worman, LF Pratson, JA Karson… - Proceedings of the …, 2020 - National Acad Sciences
Free hydrogen (H2) is a basal energy source underlying chemosynthetic activity within
igneous ocean crust. In an attempt to systematically account for all H2 within young oceanic …

Magma ascent and lava flow field emplacement during the 2018–2021 Fani Maoré deep-submarine eruption insights from lava vesicle textures

P Verdurme, L Gurioli, O Chevrel, E Médard… - Earth and Planetary …, 2024 - Elsevier
Abstract The 2018–2021 Fani Maoré submarine eruption (offshore of Mayotte, Mozambique
Channel) extruded a bulk volume of∼ 6.5 km 3 of basanite magma onto the seafloor at a …

Trace element and isotopic characteristics of plagioclase megacrysts in plagioclase ultraphyric basalts (PUB)

RL Nielsen, G Ustunisik, AE Lange… - Geochemistry …, 2020 - Wiley Online Library
Major, trace, and isotopic compositions of plagioclase megacrysts from plagioclase
ultraphyric basalts (PUB) from multiple mid‐ocean ridges were determined to characterize …

The global melt inclusion C/Ba array: Mantle variability, melting process, or degassing?

S Matthews, O Shorttle, J Maclennan… - … et Cosmochimica Acta, 2021 - Elsevier
The Earth's mantle holds more carbon than its oceans, atmosphere and continents
combined, yet the distribution of carbon within the mantle remains uncertain. Our best …

A carbon, nitrogen, and multi-isotope study of basalt glasses near 14° N on the Mid-Atlantic Ridge. Part B: Mantle source heterogeneities

DV Bekaert, PH Barry, J Curtice, J Blusztajn… - … et Cosmochimica Acta, 2024 - Elsevier
Geochemical variations along mid-ocean ridges reveal the heterogeneous nature of the
convecting upper mantle and geodynamic evolution of our planet (eg, Hofmann, 2007, Parai …