Results 21 to 30 of about 61,741,193 (165)

Description of Barathricola thermophilus, a new species from a deep-sea hydrothermal vent field in the Indian Ocean with redescription of the Barathricola type species (Crustacea, Copepoda, Cyclopoida) [PDF]

open access: yesZooKeys, 2019
Re-study of the type species of the genus Barathricola Humes, 1999 (Copepoda, Cyclopoida, Schminkepinellidae) described from the Pacific Ocean (Juan de Fuca Ridge), and study of the species Barathricola thermophilus sp. nov.
Viatcheslav N. Ivanenko   +3 more
doaj   +3 more sources

Formation Waters Delineate Diverse Hydrogeologic Conditions at a Plate Scale: Eastern Flank of the Juan de Fuca Ridge

open access: yesGeochemistry, Geophysics, Geosystems, 2022
The chemical composition of formation waters within the upper basaltic crust were calculated or measured at 24 sites on the northwest portion of the Juan de Fuca (JDF) Plate using data from sediment pore waters, scientific boreholes, and seafloor springs.
C. Geoffrey Wheat   +3 more
doaj   +1 more source

Seismic velocity structure of the Juan de Fuca and Gorda plates revealed by a joint inversion of ambient noise and regional earthquakes

open access: yesGeophysical Research Letters, 2016
The crust and upper mantle seismic structure, spanning from the Juan de Fuca and Gorda spreading centers to the Cascade back arc, is imaged with full‐wave propagation simulation and a joint inversion of ambient noise and regional earthquake recordings ...
Haiying Gao
doaj   +1 more source

Quantification of Eruption Dynamics on the North Rift at Axial Seamount, Juan de Fuca Ridge

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Quantifying eruption dynamics in submarine environments is challenging. During the 2015 eruption of Axial Seamount, the formation of hummocky mounds along the north rift was accompanied by tens of thousands of impulsive acoustic signals generated by the ...
M. Le Saout   +3 more
doaj   +1 more source

Microdistribution of Faunal Assemblages at Deep-Sea Hydrothermal Vents in the Southern Ocean [PDF]

open access: yes, 2012
Chemosynthetic primary production by microbes supports abundant faunal assemblages at deep-sea hydrothermal vents, with zonation of invertebrate species typically occurring along physico-chemical gradients.
Tyler, PA   +38 more
core   +2 more sources

IODP Expedition 321T: Cementing Operations at Holes U1301A and U1301B, Eastern Flank of the Juan de Fuca Ridge [PDF]

open access: yesScientific Drilling, 2010
IODP Expedition 301 (Fisher et al., 2005a) was part of a series of expeditions and experiments to quantify hydrogeologic, lithologic, biogeochemical, and microbiological properties, processes, and linkages on the eastern flank of the Juan de Fuca Ridge ...
Andrew T. Fisher   +1 more
doaj   +3 more sources

Genomic comparisons of a bacterial lineage that inhabits both marine and terrestrial deep subsurface systems [PDF]

open access: yesPeerJ, 2017
It is generally accepted that diverse, poorly characterized microorganisms reside deep within Earth’s crust. One such lineage of deep subsurface-dwelling bacteria is an uncultivated member of the Firmicutes phylum that can dominate molecular surveys from
Sean P. Jungbluth   +4 more
doaj   +2 more sources

Near‐axis crustal structure and thickness of the Endeavour Segment, Juan de Fuca Ridge

open access: yesGeophysical Research Letters, 2016
A model of crustal thickness and lower crustal velocities is obtained for crustal ages of 0.1–1.2 Ma on the Endeavour Segment of the Juan de Fuca Ridge by inverting travel times of crustal paths and non‐ridge‐crossing wide‐angle Moho reflections obtained
Dax Soule   +4 more
doaj   +1 more source

Changing Brine Inputs Into Hydrothermal Fluids: Southern Cleft Segment, Juan de Fuca Ridge

open access: yesGeochemistry, Geophysics, Geosystems, 2020
In 2016, temperature recorders were recovered, temperatures were measured, and fluid samples were collected from Vent 1, a high temperature (338°C) hydrothermal discharge site on the southern Cleft Segment of the Juan de Fuca Ridge. Coupled with previous
C. Geoffrey Wheat   +5 more
doaj   +1 more source

Hydrography and flow in the rift valley of the Mid-Atlantic Ridge

open access: yes, 2000
Slow-spreading mid-ocean ridges such as the Mid-Atlantic Ridge are characterized by deep axial rift valleys which are isolated from the water on the ridge flanks.
Thurnherr, Andreas M.
core   +2 more sources

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