Integrated Ocean Drilling Program (IODP) Expedition 327 (summer 2010) was designed to resolve the nature of fluid-rock interactions in young, upper volcanic crust on the eastern flank of the Juan de Fuca Ridge. Expedition 327 drilled, cased and cored two
the IODP Expedition 327 and Atlantis Expedition AT18-07 Shipboard Parties +9 more
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Juan de Fuca subduction zone from a mixture of tomography and waveform modeling [PDF]
Seismic tomography images of the upper mantle structures beneath the Pacific Northwestern United States display a maze of high-velocity anomalies, many of which produce distorted waveforms evident in the USArray observations indicative of the Juan de ...
Chu, Risheng +2 more
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Biodiversity and trophic ecology of hydrothermal vent fauna associated with tubeworm assemblages on the Juan de Fuca Ridge [PDF]
Hydrothermal vent sites along the Juan de Fuca Ridge in the north-east Pacific host dense populations of Ridgeia piscesae tubeworms that promote habitat heterogeneity and local diversity.
Y. Lelièvre +9 more
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Hydrothermal Chimney Distribution on the Endeavour Segment, Juan de Fuca Ridge
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
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Sea-floor tectonics and submarine hydrothermal systems [PDF]
The discovery of metal-depositing hot springs on the sea floor, and especially their link to chemosynthetic life, was among the most compelling and significant scientific advances of the twentieth century. More than 300 sites of hydrothermal activity and
de Ronde, Cornell D. J. +2 more
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Similar Microbial Communities Found on Two Distant Seafloor Basalts. [PDF]
The oceanic crust forms two thirds of the Earth's surface and hosts a large phylogenetic and functional diversity of microorganisms. While advances have been made in the sedimentary realm, our understanding of the igneous rock portion as a microbial ...
Chong, Lauren S +3 more
core +3 more sources
The Electrical Properties of a 2D Conductive Zone underneath the Juan de Fuca Ridge [PDF]
Vertical gradient electromagnetic sounding (VGS) on the Endeavour segment of Juan de Fuca mid‐ocean ridge reveals the presence of a 2D ridge‐parallel, conductivity anomaly.
Buck +17 more
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Degassing history of water, sulfur, and carbon in submarine lavas from Kilauea volcano, Hawaii [PDF]
Major, minor, and dissolved volatile element concentrations were measured in tholeiitic glasses from the submarine portion (Puna Ridge) of the east rift zone of Kilauea Volcano, Hawaii.
Clague, David A. +2 more
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Cataclysmic hydrothermal venting on the Juan de Fuca Ridge [PDF]
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.
Edward T. Baker +2 more
openaire +1 more source
The mechanism of tidal triggering of earthquakes at mid-ocean ridges
Tidal triggering of earthquakes at Axial Volcano on the Juan de Fuca ridge is shown to be driven by tidally induced magma chamber inflation. Fitting the data to theory requires that the frictional parameter A be much smaller than laboratory measurements ...
Christopher H. Scholz +2 more
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