Triggering of eruptions at Axial Seamount, Juan de Fuca Ridge. [PDF]
Sci Rep, 2020 AbstractThe submarine volcano Axial Seamount has exhibited an inflation predictable eruption cycle, which allowed for the successful forecast of its 2015 eruption. However, the exact triggering mechanism of its eruptions remains ambiguous. The inflation predictable eruption pattern suggests a magma reservoir pressure threshold at which eruptions occur,
Cabaniss HE +3 more
europepmc +4 more sources
Asymmetric seafloor depth across the Juan de Fuca Ridge caused by lithospheric heating
Communications Earth & Environment, 2023 Previous studies attribute asymmetries across the East Pacific Rise to horizontal temperature or pressure gradients in the deep asthenosphere caused by the Pacific Superswell, which, however, cannot explain asymmetries observed across the Juan de Fuca ...
Mengyu Wu, Michael H. Ritzwoller
doaj +2 more sources
The genome of a vestimentiferan tubeworm (Ridgeia piscesae) provides insights into its adaptation to a deep-sea environment [PDF]
BMC Genomics, 2023 Background Vestimentifera (Polychaeta, Siboglinidae) is a taxon of deep-sea worm-like animals living in deep-sea hydrothermal vents, cold seeps, and organic falls.
Muhua Wang +13 more
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Microbiological characterization of post-eruption "snowblower" vents at Axial Seamount, Juan de Fuca Ridge [PDF]
Frontiers in Microbiology, 2013 Microbial processes within the subseafloor can be examined during the ephemeral and uncommonly observed phenomena known as snowblower venting. Snowblowers are characterized by the large quantity of white floc that is expelled from the seafloor following ...
Julie L Meyer +4 more
doaj +2 more sources
A Diverse Community of Metal(loid) Oxide Respiring Bacteria Is Associated with Tube Worms in the Vicinity of the Juan de Fuca Ridge Black Smoker Field. [PDF]
PLoS ONE, 2016 Epibiotic bacteria associated with tube worms living in the vicinity of deep sea hydrothermal vents of the Juan de Fuca Ridge in the Pacific Ocean were investigated for the ability to respire anaerobically on tellurite, tellurate, selenite, selenate ...
Chris Maltman +2 more
doaj +2 more sources
Activity and abundance of denitrifying bacteria in the subsurface biosphere of diffuse hydrothermal vents of the Juan de Fuca Ridge [PDF]
Biogeosciences, 2012 Little is known about fixed nitrogen (N) transformation and elimination at diffuse hydrothermal vents where anoxic fluids are mixed with oxygenated crustal seawater prior to discharge.
A. Bourbonnais +10 more
doaj +3 more sources
Hydrothermal Chimney Distribution on the Endeavour Segment, Juan de Fuca Ridge [PDF]
Geochemistry, Geophysics, Geosystems, 2020 The Endeavour Segment of the Juan de Fuca Ridge is well known for its abundance of hydrothermal vents and chimneys. One‐meter scale multibeam mapping data collected by an autonomous undersea vehicle revealed 572 chimneys along the central 14 km of the ...
David A. Clague +9 more
doaj +3 more sources
Temperature and redox effect on mineral colonization in Juan de Fuca Ridge flank subsurface crustal fluids [PDF]
Frontiers in Microbiology, 2016 To examine microbe-mineral interactions in subsurface oceanic crust, we evaluated microbial colonization on crustal minerals that were incubated in borehole fluids for one year at the seafloor wellhead of a crustal borehole observatory (IODP Hole U1301A,
Jean-Paul eBaquiran +8 more
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Influence of Igneous Basement on Deep Sediment Microbial Diversity on the Eastern Juan de Fuca Ridge Flank [PDF]
Frontiers in Microbiology, 2017 Microbial communities living in deeply buried sediment may be adapted to long-term energy limitation as they are removed from new detrital energy inputs for thousands to millions of years.
Jessica M. Labonté +6 more
doaj +2 more sources
Distribution of methane-cycling archaea in buried ridge flank sediment: community zonation, activity, and potential environmental drivers [PDF]
Frontiers in MicrobiologySubseafloor sediments harbor Earth’s biggest reservoir of methane, with most of this methane being produced biologically by methanogenic archaea (methanogens).
Mark Alexander Lever +5 more
doaj +2 more sources