Results 51 to 60 of about 6,578 (212)
Circulation, hydrography, and transport over the summit of Axial Seamount, a deep volcano in the Northeast Pacific [PDF]
, 2017 Author Posting. © American Geophysical Union, 2017. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution.
Lavelle, J. William, Xu, Guangyu
core +1 more source
Helium isotope variations in Juan De Fuca Ridge basalts
Geophysical Research Letters, 1993 We have measured ³He/4He ratios and He and Ne concentrations on a suite of 24 basalt glasses from the neovolcanic zone of the Juan de Fuca Ridge (JdFR) from 44.6°N near the Blanco Transform up to 48.0°N on the Endeavour Segment. The helium isotope ratios exhibit a clear geographic variation, with relatively constant values of 7.8 RA along the southern ...
John E. Lupton +3 more
openaire +1 more source
Magma Pockets Lie Stacked Beneath Juan de Fuca Ridge
Eos, 2021 Analysis of new imaging data suggests that vertically stacked magma chambers are short-lived and contribute to eruptions.
openaire +1 more source
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
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
Timescale of open-reservoir evolution beneath the south Cleft segment, Juan de Fuca ridge [PDF]
, 2011 International audienceLavas erupted at the southern end of the intermediate Juan de Fuca ridge (Cleft segment) are mostly cogenetic and their chemical diversity results from melt evolution in an open magma system.
Caroff, Martial +2 more
core +3 more sources
Basin Research, Volume 38, Issue 3, May–June 2026.2D seismic and well data reveal multi‐phase basin filling in the Whatcom Sub‐Basin shaped by syn‐depositional tectonism. An Eocene transition from forearc basin to forearc depression corresponds to decreasing normal‐fault density and throw, both upsection and eastward. Paleogene–Neogene strata are the best CO2 storage targets.
Francyne Bochi do Amarante +4 more
wiley +1 more source
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
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.
Bijwaard +56 more
core +1 more source
Sr isotopic variations along the Juan de Fuca Ridge
Journal of Geophysical Research: Solid Earth, 1984 Sr isotopic ratios of 39 glass and microcrystalline basalt samples along the Juan de Fuca Ridge and 1 glass sample from Brown Bear Seamount are at the lower end of the range for normal mid‐oceanic ridge basalt (MORB); the average 87Sr/86Sr ratio is 0.70249±0.00014 (2‐σ). Although subtle variations exist along strike of the ridge, the Sr isotope data do
Eaby, Jacqueline +2 more
openaire +3 more sources