Results 41 to 50 of about 61,741,193 (165)

(Table 3) Composition of carbonate phases (stage 4) of altered rocks with increasing distance across the eastern flank of the Juan de Fuca Ridge, ODP Leg 168 data

, 1999
(Table 3) Composition of carbonate phases (stage 4) of altered rocks with increasing distance across the eastern flank of the Juan de Fuca Ridge, ODP Leg 168 ...
A G Hunter (6980318), P Greenwood (6980321), Kempton, Pamela D, Hunter, A G, Greenwood, P, Pamela D Kempton (6961055)   +5 more
core   +1 more source

Numerical modeling of phase separation at Main Endeavour Field, Juan de Fuca Ridge

Geochemistry, Geophysics, Geosystems, 2013
Before being disrupted by a magmatic event in 1999, the vent temperatures and salinities along the axis of the Main Endeavour Field on the Juan de Fuca Ridge exhibited a quasi‐steady spatial gradient in which the southern vent fluids were hotter and less
Shreya Singh, Robert P. Lowell, Kayla C. Lewis   +2 more
doaj   +1 more source

Widespread Association of Ciliates Colonizing Gills of Shrimps Inhabiting Vents and Seeps Across the Pacific Ocean

Journal of Eukaryotic Microbiology, Volume 73, Issue 5, September/October 2026.
ABSTRACT Bacterial symbiosis is well‐documented in chemosynthesis‐based ecosystems, but associations with microeukaryotes remain overlooked. In this study, using scanning electron microscopy and 18S rDNA barcoding, we investigate the presence, diversity, and biogeographic patterns of ciliate epibionts associated with two deep‐sea caridean families ...
Lison Hey, Chong Chen, Ting Xu, Emily Cowell, Dewi Langlet, Pierre Methou   +5 more
wiley   +1 more source

(Table 2b) Isotopic composition for basalts from the West Valley segment, Juan de Fuca Ridge

, 1995
(Table 2b) Isotopic composition for basalts from the West Valley segment, Juan de Fuca ...
R L Chase (6961955), Allan, James F, James F Allan (6958844), Matthew I Leybourne (6961952), Leybourne, Matthew I, Chase, R L, Brian L Cousens (6958841), Nancy van Wagoner (6961958), van Wagoner, Nancy, Cousens, Brian L   +9 more
core   +1 more source

Hydrothermal Manganese‐Oxide Mineralization of a Carbonate Ooze, Samoan Hotspot Region, South Pacific Ocean

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Low‐temperature hydrothermal manganese oxides occur throughout the global oceans. However, the hydrothermal replacement of a carbonate ooze by manganese oxides is described here for the first time. The 24 samples dredged from three locations around the Territory of American Samoa in the South Pacific Ocean include six samples with remnant ...
James R. Hein, Amy Gartman, Kira Mizell, Mark Baskaran, Anthony Koppers, Hubert Staudigel   +5 more
wiley   +1 more source

Mid‐Ocean Ridge (MOR) Ash Dispersal on Axial Seamount, Juan de Fuca Ridge

Geochemistry, Geophysics, Geosystems
Rare eruption of primitive normal mid‐ocean ridge basalt (N‐MORB) magma (∼9.5 wt% MgO) on the summit of Axial Seamount generated abundant ash that was dispersed for several km.
Ryan A. Portner, Guangyu Xu, Arran P. Murch, David A. Clague, Brian M. Dreyer, Jennifer B. Paduan   +5 more
doaj   +1 more source

Evolution of Tectonically Accreted Topmost Oceanic Lithospheric Mantle Based on Seismic Tomography Constraints at the Ultraslow‐Spreading Southwest Indian Ridge

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Oceanic lithosphere formed at the global mid‐ocean ridge system makes up >60% of Earth's solid surface. Its uppermost ∼6 km are accreted either magmatically, where mafic melt is available, or tectonically, where this melt is absent. The magmatically accreted lithosphere is known to evolve with age, as demonstrated by its velocity increase ...
A. Corbalán, M. R. Nedimović
wiley   +1 more source

Juan de Fuca Ridge atlas, SeaMARC II acoustic imagery

, 1984
This open file comprises approximately 15,000 km2 of SeaMARC II side-scan acoustic imaging data from the northern Juan de Fuca and Explorer Ridges. These data are presented in two formats: a mosaic at a scale of 1:250,000 and individual swath images (10 ...
E E Davis, D M Hussong, R G Currie, B S Sawyer   +3 more
core   +1 more source

Dynamic Evolution of Forearc Subsidence Controlled by Slab Geometry

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Several subduction zones worldwide present an enigmatic forearc topography and strain characterized by extension at a forearc ridge near the trench and shortening within a forearc valley located between the ridge and the magmatic arc. The development of this topography has been linked to progressive slab steepening, while strain patterns ...
F. Bolrão, W. P. Schellart
wiley   +1 more source

Geology of the Northern End of Juan de Fuca Ridge and Sea-Floor Spreading

, 1974
The northern end of Juan de Fuca Ridge consists of a series of basement ridges and valleys, inundated with sediment except for the axis of most recent sea-floor spreading.
Sandra M. Barr, R. L. Chase
core   +1 more source