Results 31 to 40 of about 1,849 (215)

Dispersion of deep-sea hydrothermal plumes at the Endeavour Segment of the Juan de Fuca Ridge: a multiscale numerical study

Frontiers in Marine Science, 2023
A multiscale numerical framework has been developed to investigate the dispersion of deep-sea hydrothermal plumes that originate from the Endeavour Segment of the Juan de Fuca Ridge located in the Northeast Pacific.
Guangyu Xu, Christopher R. German
doaj   +1 more source

Cataclysmic hydrothermal venting on the Juan de Fuca Ridge [PDF]

Nature, 1987
Serial observations of individual submarine hydrothermal vents1 and the mapping of dilute hydrothermal plumes extending far downcurrent from vent fields2–4 indicate a stability of vent field fluid composition and mass flux on at least decadal time scales.
Baker, Edward T., Massoth, Gary J., Feely, Richard A.   +2 more
openaire   +1 more source

Chemical alteration of sediments on early stage of existing of hydrothermal systems in spreading zones of sedimented ridges (hydrothermal field “Dead Dog”, Middle Valley, Juan de Fuca Ridge) [PDF]

E3S Web of Conferences, 2019
In sediments from Holes DSDP 858B, D, F, located near the active hot vent on the thermal field “Dead Dog” in the northern part of the Juan de Fuca Ridge, Middle Valley, a redistribution of chemical elements occurs as a result of solution-rock interaction.
Khakhina Alexandra, Kurnosov Victor, Konovalov Yurii, Churkina Valeriya, Galin Konstantin   +4 more
doaj   +1 more source

Systematic shift in plume bending direction at Grotto Vent, Main Endeavour Field, Juan de Fuca Ridge implies changes in venting output along the Endeavour Segment

Frontiers in Earth Science, 2022
Analysis of the time-dependent behavior of the buoyant plume rising above Grotto Vent (Main Endeavour Field, Juan de Fuca Ridge) as imaged by the Cabled Observatory Vent Imaging Sonar (COVIS) between September 2010 and October of 2015 captures long term ...
Karen G. Bemis, Michael Zhao, Joshua Sacker, Dax C. Soule, Dax C. Soule   +4 more
doaj   +1 more source

Microearthquakes on the Endeavour segment of the Juan de Fuca Ridge [PDF]

Journal of Geophysical Research: Solid Earth, 2002
We report the results of a 55‐day microearthquake experiment on the Endeavour segment of Juan de Fuca Ridge. The network covered a 5‐km section of the ridge axis centered on the Main vent field and extended 15‐km off axis on the west flank. The ridge axis and flanks were seismically active, and 1750 earthquakes were located with a minimum of five ...
William S. D. Wilcock, Stephen D. Archer, G. M. Purdy   +2 more
openaire   +1 more source

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

, 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, Rogers, AD, Huvenne, Veerle A.I., Katrin Linse, Rogers Alex D., Sweeting Christopher J., Jonathan T Copley, Alex D Rogers, Linse, K, William D. K. Reid, Leigh Marsh, Christopher J Sweeting, Paul A Tyler, Veerle A I Huvenne, Reid, WD, Christopher J. Sweeting, Linse, Katrin, Rogers, Alex D., Copley, JT, Tyler Paul A., William D K Reid, Sweeting, CJ, Copley Jonathan T., Sweeting, Christopher J., Huvenne, VA, Marsh, Leigh, Alex D. Rogers, Copley, Jonathan T., Reid, William D.K., Tyler, Paul A., Marsh, L, Rogers, Alex, Veerle A. I. Huvenne, Linse Katrin, Jonathan T. Copley, Huvenne Veerle A. I., Paul A. Tyler, Marsh Leigh, Reid William D. K.   +38 more
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Near‐axis crustal structure and thickness of the Endeavour Segment, Juan de Fuca Ridge

Geophysical 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, William S. D. Wilcock, Douglas R. Toomey, Emilie E. E. Hooft, Robert T. Weekly   +4 more
doaj   +1 more source

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

Geochemistry, 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, Robert A. Zierenberg, Jennifer B. Paduan, David W. Caress, David A. Clague, William W. Chadwick Jr.   +5 more
doaj   +1 more source

Hydrothermal vent fluid perturbations related to seismic activity at Axial Seamount, Juan de Fuca Ridge

, 2021
Mid-ocean ridges are dynamic environments that transfer the largest amount of heat and chemicals from the Earth’s lithosphere to the hydrosphere. Continuous observations of the changes in mid-ocean ridge environments over long time scales are difficult ...
Peterson, Tyler
core  

Geologic history of the summit of Axial Seamount, Juan de Fuca Ridge

Geochemistry, Geophysics, Geosystems, 2013
Multibeam (1 m resolution) and side scan data collected from an autonomous underwater vehicle, and lava samples, radiocarbon‐dated sediment cores, and observations of flow contacts collected by remotely operated vehicle were combined to reconstruct the ...
David A. Clague, Brian M. Dreyer, Jennifer B. Paduan, Julie F. Martin, William W. Chadwick, David W. Caress, Ryan A. Portner, Thomas P. Guilderson, Mary L. McGann, Hans Thomas, David A. Butterfield, Robert W. Embley   +11 more
doaj   +1 more source