Results 71 to 80 of about 1,849 (215)
Assessment of decadal-scale ecological change at a deep Mid-Atlantic hydrothermal vent and reproductive time-series in the shrimp Rimicaris exoculata [PDF]
, 2007 This study presents a comparison of distribution and abundance of dominant megafaunal species at the TAG hydrothermal mound on the Mid-Atlantic Ridge from 1994 to 2004.
P.B.K. Jorgensen +5 more
core +1 more source
Geophysical Research Letters, 2016 High‐resolution geophysical data have been collected using the Autonomous Underwater Vehicle (AUV) Sentry over the ASHES (Axial Seamount Hydrothermal Emission Study) high‐temperature (~348°C) vent field at Axial Seamount, on the Juan de Fuca Ridge ...
Fabio Caratori Tontini +6 more
doaj +1 more source
Crustal accretion at the Reykjanes Ridge, 61°–62°N
We report results of a seismic, gravity, and magnetic survey of the Reykjanes Ridge spreading center at 61°–62°N, about 600 km from the center of the Iceland mantle plume.
Smallwood, John R., White, Robert S.
core +1 more source
Ancestral Biogeography Reveals Diverse Origins of Costa Rica Margin Seep Invertebrates
Journal of Biogeography, Volume 53, Issue 3, March 2026.ABSTRACT Aim This work addressed the hypotheses that invertebrate species from hydrocarbon seeps at the Pacific Costa Rica Margin (CRM) would descend from adjacent biogeographic provinces, and that common ancestral histories would be identified across invertebrate groups.
Melissa J. Betters, Elisa Nocella
wiley +1 more source
Mantle flow geometry from ridge to trench beneath the Gorda-Juan de Fuca plate system [PDF]
, 2015 Tectonic plates are underlain by a low-viscosity mantle layer, the asthenosphere. Asthenospheric flow may be induced by the overriding plate or by deeper mantle convection1.
Totten, E +9 more
core +1 more source
Post Eruption inflation of the East Pacific Rise at 9°50′ N
Geochemistry, Geophysics, Geosystems, 2014 In June 2008, we installed a geodetic network at 9°50′ N on the East Pacific Rise to track the long‐term movement of magma following the 2005/6 eruption. This network consists of 10 concrete benchmarks stretching from the ridge to 9 km off‐axis.
Scott L. Nooner +3 more
doaj +1 more source
Helium isotope variations in Juan De Fuca Ridge basalts
Geophysical Research Letters, 1993 We have measured ³He/4He ratios and He and Ne concentrations on a suite of 24 basalt glasses from the neovolcanic zone of the Juan de Fuca Ridge (JdFR) from 44.6°N near the Blanco Transform up to 48.0°N on the Endeavour Segment. The helium isotope ratios exhibit a clear geographic variation, with relatively constant values of 7.8 RA along the southern ...
John E. Lupton +3 more
openaire +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.Abstract Back‐arc basins provide insights into the processes governing the evolution of continental rifting to seafloor spreading. The Bransfield basin hosts a back arc rift that is hypothesized to be in the late stages of this transition. Orca volcano is a submarine volcano that lies on the most evolved portion of the rift.
Maleen Kidiwela +3 more
wiley +1 more source
Tectonics, Volume 45, Issue 2, February 2026.Abstract Accretionary complexes are key archives of subduction zone processes, preserving records of forearc growth, deformation, and tectonic reorganization. The Chugach–Kodiak accretionary complex of southern Alaska records Jurassic to Cretaceous underplating at shallow to intermediate subduction conditions. The McHugh Complex, an imbricated sequence
Ismay Vénice Akker +9 more
wiley +1 more source
Temperature and pressure adaptation of a sulfate reducer from the deep subsurface
Frontiers in Microbiology, 2015 Microbial life in deep marine subsurface faces increasing temperatures and hydrostatic pressure with depth. In this study, we have examined growth characteristics and temperature-related adaptation of the Desulfovibrio indonesiensis strain P23 to the in ...
Katja eFichtel +5 more
doaj +1 more source