Results 21 to 30 of about 344,095 (178)

Drift Corrected Seafloor Pressure Observations of Vertical Deformation at Axial Seamount 2018–2021

Earth and Space Science, 2023
Axial Seamount is a seafloor volcano with frequent eruptions and periodic cycles of inflation and deflation. Seafloor pressure gauges monitor vertical deformation with time, but inherent instrumental drift complicates and biases geodetic interpretation ...
Glenn S. Sasagawa, Mark A. Zumberge, Matthew J. Cook   +2 more
doaj   +1 more source

Magnetic Constraints on Off‐Axis Seamount Volcanism in the Easternmost Segment of the Australian‐Antarctic Ridge

Geochemistry, Geophysics, Geosystems, 2021
The Australian‐Antarctic Ridge (AAR) is an intermediate‐spreading rate system located between the Southeast Indian Ridge and Macquarie Triple Junction of the Australian‐Antarctic‐Pacific plates. KR1 is the easternmost and longest AAR segment and exhibits
Hakkyum Choi, Seung‐Sep Kim, Sung‐Hyun Park   +2 more
doaj   +1 more source

Variations in Volcanism and Tectonics Along the Hotspot‐Influenced Reykjanes Ridge

Geochemistry, Geophysics, Geosystems, 2023
Mapping and sampling four sections of the slow‐spreading Reykjanes Ridge provide insight into how tectonic and volcanic activity varies with distance from the Iceland plume.
M. Le Saout, D. Pałgan, C. W. Devey, T. S. Lux, S. Petersen, D. Thorhallsson, A. Tomkowicz, S. Brix   +7 more
doaj   +1 more source

Acoustic and In‐Situ Observations of Deep Seafloor Hydrothermal Discharge: An OOI Cabled Array ASHES Vent Field Case Study

Earth and Space Science, 2021
The Cabled Observatory Vent Imaging Sonar (COVIS) was installed on the Ocean Observatories Initiative's Regional Cabled Array observatory at ASHES hydrothermal vent field on Axial Seamount in July 2018.
Guangyu Xu, Karen Bemis, Darrell Jackson, Anatoliy Ivakin   +3 more
doaj   +1 more source

Gibbosaverruca weijiai, a new verrucid (Crustacea, Thoracica) species from the Weijia Guyot deep-sea seamount in the West Pacific

European Journal of Taxonomy, 2021
A new species of verrucid barnacle, Gibbosaverruca weijiai sp. nov., is described and illustrated based on specimens collected from a deep-sea seamount, Weijia Guyot, in the West Pacific. This is the third barnacle species reported from Weijia Guyot. The
Zhibin Gan, Dongsheng Zhang, Xinzheng Li, Chunsheng Wang   +3 more
doaj   +1 more source

Petrogenesis of lavas from Detroit Seamount: Geochemical differences between Emperor Chain and Hawaiian volcanoes [PDF]

, 2005
The Hawaiian Ridge and Emperor Seamount Chain define a hot spot track that provides an 80 Myr record of Hawaiian magmatism. Detroit Seamount (∼76 to 81 Ma) is one of the oldest Emperor Seamounts.
S. Huang, Frey, F., M. Regelous, F. A. Frey, Huang, S., Regelous, M., Frey, F. A., T. Thordarson, Thordarson, T.   +8 more
core   +1 more source

Geodetic Monitoring at Axial Seamount Since Its 2015 Eruption Reveals a Waning Magma Supply and Tightly Linked Rates of Deformation and Seismicity

Geochemistry, Geophysics, Geosystems, 2022
Axial Seamount is a basaltic hot spot volcano with a summit caldera at a depth of ∼1,500 m below sea level, superimposed on the Juan de Fuca spreading ridge, giving it a robust and continuous magma supply.
William W. Chadwick Jr., William S. D. Wilcock, Scott L. Nooner, Jeffrey W. Beeson, Audra M. Sawyer, T.‐K. Lau   +5 more
doaj   +1 more source

A New Insight Into Seawater-Basalt Exchange Reactions Based on Combined δ18O—Δ′17O—87Sr/86Sr Values of Hydrothermal Fluids From the Axial Seamount Volcano, Pacific Ocean

Frontiers in Earth Science, 2021
The δ18O values of submarine vent fluids are controlled by seawater-basalt exchange reactions, temperature of exchange, and to a lesser extent, by phase separation.
D. O. Zakharov, R. Tanaka, D. A. Butterfield, E. Nakamura   +3 more
doaj   +1 more source

The morphology and structure of the Hannibal Bank fisheries management zone, Pacific Panama using acoustic seabed mapping [PDF]

, 2014
St. Andrews University, Fundación MarViva, The Nature Conservancy and the Smithsonian Tropical Research Institute provided the funding for this research.The Hannibal Bank sits within the Coiba UNESCO World Heritage Site in Pacific Panama and is also a ...
Bates, C. Richard, Cunningham, S., Guzman, H.M.   +2 more
core   +2 more sources

Crustal magnetization and the subseafloor structure of the ASHES vent field, Axial Seamount, Juan de Fuca Ridge: Implications for the investigation of hydrothermal sites

Geophysical Research Letters, 2016
High‐resolution geophysical data have been collected using the Autonomous Underwater Vehicle (AUV) Sentry over the ASHES (Axial Seamount Hydrothermal Emission Study) high‐temperature (~348°C) vent field at Axial Seamount, on the Juan de Fuca Ridge ...
Fabio Caratori Tontini, Timothy J. Crone, Cornel E. J. deRonde, Daniel J. Fornari, James C. Kinsey, Eric Mittelstaedt, Maurice Tivey   +6 more
doaj   +1 more source