Results 31 to 40 of about 6,578 (212)

ROV samples vents on Juan de Fuca Ridge

Eos, Transactions American Geophysical Union, 1993
In 1991, the JASON Remotely Operated Vehicle (ROV) successfully performed high‐resolution imaging within complex vent fields on the northern Juan de Fuca Ridge. From June 22 to July 16, 1992, a team of Canadian and U.S. scientists and engineers joined in an expedition to develop sampling capabilities for a HYSUB 5000 ROV in a mid‐ocean ridge ...
Robert W. Embley, James M. Franklin
openaire   +1 more source

Description of Barathricola thermophilus, a new species from a deep-sea hydrothermal vent field in the Indian Ocean with redescription of the Barathricola type species (Crustacea, Copepoda, Cyclopoida) [PDF]

ZooKeys, 2019
Re-study of the type species of the genus Barathricola Humes, 1999 (Copepoda, Cyclopoida, Schminkepinellidae) described from the Pacific Ocean (Juan de Fuca Ridge), and study of the species Barathricola thermophilus sp. nov.
Viatcheslav N. Ivanenko, Jimin Lee, Cheon Young Chang, Il-Hoi Kim   +3 more
doaj   +3 more sources

Formation Waters Delineate Diverse Hydrogeologic Conditions at a Plate Scale: Eastern Flank of the Juan de Fuca Ridge

Geochemistry, Geophysics, Geosystems, 2022
The chemical composition of formation waters within the upper basaltic crust were calculated or measured at 24 sites on the northwest portion of the Juan de Fuca (JDF) Plate using data from sediment pore waters, scientific boreholes, and seafloor springs.
C. Geoffrey Wheat, Michael J. Mottl, Andrew T. Fisher, Samuel Hulme   +3 more
doaj   +1 more source

Animal community dynamics at senescent and active vents at the 9° N East Pacific Rise after a volcanic eruption [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Gollner, S., Govenar, B., Arbizu, P. M., Mullineaux, L.
Arbizu, P. Martinez, Bright, Monika, Gollner, Sabine, Govenar, Breea, Le Bris, Nadine, Mills, Susan W., Mullineaux, Lauren S., Shank, Timothy M., Weinbauer, Markus   +8 more
core   +2 more sources

Seismic velocity structure of the Juan de Fuca and Gorda plates revealed by a joint inversion of ambient noise and regional earthquakes

Geophysical Research Letters, 2016
The crust and upper mantle seismic structure, spanning from the Juan de Fuca and Gorda spreading centers to the Cascade back arc, is imaged with full‐wave propagation simulation and a joint inversion of ambient noise and regional earthquake recordings ...
Haiying Gao
doaj   +1 more source

Quantification of Eruption Dynamics on the North Rift at Axial Seamount, Juan de Fuca Ridge

Geochemistry, Geophysics, Geosystems, 2020
Quantifying eruption dynamics in submarine environments is challenging. During the 2015 eruption of Axial Seamount, the formation of hummocky mounds along the north rift was accompanied by tens of thousands of impulsive acoustic signals generated by the ...
M. Le Saout, D. R. Bohnenstiehl, J. B. Paduan, D. A. Clague   +3 more
doaj   +1 more source

Genomic comparisons of a bacterial lineage that inhabits both marine and terrestrial deep subsurface systems [PDF]

PeerJ, 2017
It is generally accepted that diverse, poorly characterized microorganisms reside deep within Earth’s crust. One such lineage of deep subsurface-dwelling bacteria is an uncultivated member of the Firmicutes phylum that can dominate molecular surveys from
Sean P. Jungbluth, Tijana Glavina del Rio, Susannah G. Tringe, Ramunas Stepanauskas, Michael S. Rappé   +4 more
doaj   +2 more sources

Sulfur isotope rations of sulfide minerals from the deposit of the Tsuchikura mine, Shiga Prafecture, Japan [PDF]

, 1998
Sulfur isotope rations of sulfide minerals in the ore specimens from the deposit of the Tsuchikura mine are distrib-uted in a range from -0.8 to 5.4%, mostly from +0.5 to 3.0%, close to the previous data (from +1 to +3%) by Miyake and Sasaki (1980).
Harada, Kaori, Kase, Katsuo, Yamamoto, Masahiro   +2 more
core   +1 more source

IODP Expedition 321T: Cementing Operations at Holes U1301A and U1301B, Eastern Flank of the Juan de Fuca Ridge [PDF]

Scientific Drilling, 2010
IODP Expedition 301 (Fisher et al., 2005a) was part of a series of expeditions and experiments to quantify hydrogeologic, lithologic, biogeochemical, and microbiological properties, processes, and linkages on the eastern flank of the Juan de Fuca Ridge ...
Andrew T. Fisher, IODP Expedition 321T Scientific Party   +1 more
doaj   +3 more sources

タイワ ヲ モチイタ ブッタイ ニンシキ ニ カンスル ケンキュウ [PDF]

, 2008
To construct in situ velocity-porosity relationships for oceanic basalt, considering crack features, P- and S-wave velocity measurements on basaltic samples obtained from the eastern flank of the Juan de Fuca Ridge were carried out under confining ...
マキハラ, ヤスシ, Makihara, Yasushi, 槇原, 靖   +2 more
core   +1 more source