Results 31 to 40 of about 61,741,193 (165)
Crustal accretion at the Reykjanes Ridge, 61°–62°N [PDF]
We report results of a seismic, gravity, and magnetic survey of the Reykjanes Ridge spreading center at 61°–62°N, about 600 km from the center of the Iceland mantle plume.
Smallwood, John R., White, Robert S.
core +1 more source
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 +11 more
doaj +1 more source
, 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
Oceanography, 2012 It is with especially great pleasure, and a bit of nostalgia, that I introduce the March 2012 special issue of Oceanography on "Oceanic Spreading Center Processes: Ridge 2000 Program Research." My very first oceanographic cruise was to the Juan de Fuca ...
Ellen S. Kappel
doaj
A 20-Year Hydroacoustic Time Series of Seismic and Volcanic Events in the Northeast Pacific Ocean [PDF]
Oceanography, 2011 For the last 20 years, civilian researchers have used the Sound Surveillance System (SOSUS), a US Navy hydrophone array deployed for anti-submarine warfare during the Cold War, to detect seismic and volcanic activity in the Northeast Pacific Ocean.
Robert P. Dziak +2 more
doaj
Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)
Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki +5 more
wiley +1 more source
Morphology and tectonics of the Mid-Atlantic Ridge, 7°–12°S
, 2003 We present swath bathymetric, gravity, and magnetic data from the Mid-Atlantic Ridge between the Ascension and the Bode Verde fracture zones, where significant ridge–hot spot interaction has been inferred.
T. A. Minshull +5 more
core +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.Abstract The Aurora hydrothermal vent field (AVF) is the first confirmed active vent system on the Arctic Ocean seafloor, located at the western end of the ultraslow spreading Gakkel Ridge. It marks a distinctive endmember among ridge‐axis hydrothermal systems, where volcanic construction and ultramafic influence co‐exist.
Matthias Pilot +3 more
wiley +1 more source
Petrological variability of recent magmatism at Axial Seamount summit, Juan de Fuca Ridge
Geochemistry, Geophysics, Geosystems, 2013 A combined study of mapping, observational, age constraint, and geochemical data at the summit of Axial Seamount, Juan de Fuca Ridge, has revealed its recent petrological history. Multiple basalt types erupted at the summit in a time sequence.
Brian M. Dreyer +2 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.Abstract Megathrust slip behavior in subduction zones can vary along‐strike, yet the mechanisms driving this variability remain uncertain. The Middle America trench offshore Mexico provides an ideal setting to investigate the structural controls on megathrust slip behavior.
Davis Hagemeier +10 more
wiley +1 more source