Hydrothermal circulation and alteration at mid-ocean ridges and ridge flanks have a key role
in regulating seawater chemistry and global chemical fluxes, and support diverse …

The upper mantle is critical for our understanding of terrestrial magmatism, crust formation,
and element cycling between Earth's solid interior, hydrosphere, atmosphere, and …

Deep-sea hydrothermal fluids are often enriched in carbon dioxide, methane, and hydrogen.
Methane effuses from metal-rich black smokers such as the Rainbow hydrothermal field, at …

IODP Expedition 357 used two seabed drills to core 17 shallow holes at 9 sites across
Atlantis Massif ocean core complex (Mid-Atlantic Ridge 30° N). The goals of this expedition …

Water‐rock reactions liberate bioavailable energy, a necessary condition for chemotrophic
habitability and origins of life. The major minerals of ultramafic (UM) rocks: olivine (ol) …

Serpentinization-influenced hydrothermal systems, such as the Lost City Hydrothermal Field
(LCHF), are considered as potential sites for the origin of life. Despite an abundance of …

Serpentinization, ie the hydrothermal alteration of ultramafic rocks, is an important and
ubiquitous geologic process that occurs at slow-and ultraslow-spreading mid-ocean ridges …

The carbon geochemistry of serpentinized peridotites and gabbroic rocks recovered during
IODP Expedition 357 on the Atlantis Massif (AM) was examined to characterize carbon …

Serpentinisation of mantle peridotites below the seafloor is the most important hydration
reaction in the Earth's deep water cycle. This critical step in water–rock interaction occurs …

Fluid‐rock interaction in ultramafic rocks considerably affects the chemical and isotopic
composition of the oceanic lithosphere. We present a geochemical and petrological study of …