Results 211 to 220 of about 3,180 (229)
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Journal of Geophysical Research: Solid Earth, 1993
A detailed seismic refraction survey was carried out over the Endeavour Segment of the Juan de Fuca Ridge, a medium‐rate spreading center which lies off western North America, to investigate the creation and evolution of oceanic crust. A bathymetric high and the presence of hydrothermal vents suggested that the study area was the most recent locus of ...
Connie F. Cudrak, Ron M. Clowes
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A detailed seismic refraction survey was carried out over the Endeavour Segment of the Juan de Fuca Ridge, a medium‐rate spreading center which lies off western North America, to investigate the creation and evolution of oceanic crust. A bathymetric high and the presence of hydrothermal vents suggested that the study area was the most recent locus of ...
Connie F. Cudrak, Ron M. Clowes
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Earth and Planetary Science Letters, 2014
Abstract Continuous time-series observations are key to understanding the temporal evolution of a seafloor hydrothermal system and its interplay with thermal and chemical processes in the ocean and Earth interior. In this paper, we present a 26-month time series of the heat flux driving a hydrothermal plume on the Endeavour Segment of the Juan de ...
Guangyu Xu +3 more
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Abstract Continuous time-series observations are key to understanding the temporal evolution of a seafloor hydrothermal system and its interplay with thermal and chemical processes in the ocean and Earth interior. In this paper, we present a 26-month time series of the heat flux driving a hydrothermal plume on the Endeavour Segment of the Juan de ...
Guangyu Xu +3 more
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Applied Geochemistry, 2009
Abstract Hydrothermal chimney sulfides, vent cap chimney samples, Fe-oxide and basalts from sediment-starving Juan de Fuca Ridge, in the Endeavour segment, exhibit a range of Pb isotope ratios ( 206 Pb/ 204 Pb = 18.658–18.769; 207 Pb/ 204 Pb = 15.457–15.566; 208 Pb/ 204 Pb = 37.810–38.276).
Hui-Qiang Yao +9 more
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Abstract Hydrothermal chimney sulfides, vent cap chimney samples, Fe-oxide and basalts from sediment-starving Juan de Fuca Ridge, in the Endeavour segment, exhibit a range of Pb isotope ratios ( 206 Pb/ 204 Pb = 18.658–18.769; 207 Pb/ 204 Pb = 15.457–15.566; 208 Pb/ 204 Pb = 37.810–38.276).
Hui-Qiang Yao +9 more
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1988
Basaltic rocks from various tectonic settings of the northern end of the Juan de Fuca Ridge were studied in order to compare the physical volcanology, geochemistry, and petrogenesis of spatially related rocks of an active spreading centre (West Valley and West Valley wall), small off-axis seamount chains (the Heck and Heckle Seamounts and the nearby ...
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Basaltic rocks from various tectonic settings of the northern end of the Juan de Fuca Ridge were studied in order to compare the physical volcanology, geochemistry, and petrogenesis of spatially related rocks of an active spreading centre (West Valley and West Valley wall), small off-axis seamount chains (the Heck and Heckle Seamounts and the nearby ...
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2020
Inactive seafloor hydrothermal vents on the seafloor are continuously exposed to oxygen-rich seawater and subjected to oxidative processes. These processes result in mineral breakdown, structural instability, and eventual collapse of the vents.
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Inactive seafloor hydrothermal vents on the seafloor are continuously exposed to oxygen-rich seawater and subjected to oxidative processes. These processes result in mineral breakdown, structural instability, and eventual collapse of the vents.
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Report on Endeavour Segment (Undersea Features)
Bulletin of the Global Volcanism Network, 2011openaire +1 more source
Sulfide deposits from the Endeavour segment of the Juan de Fuca Ridge
Deep Sea Research Part B. Oceanographic Literature Review, 1985openaire +1 more source
Report on Endeavour Segment (Undersea Features)
Bulletin of the Global Volcanism Network, 2005openaire +1 more source