Results 31 to 40 of about 311 (158)

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

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

Volcano Monitoring With Magnetic Measurements: A Simulation of Eruptions at Axial Seamount, Kīlauea, Bárðarbunga, and Mount Saint Helens

Geophysical Research Letters, 2022
Monitoring of active volcanic systems is a challenging task due in part to the trade‐offs between collection of high‐quality data from multiple techniques and the high costs of acquiring such data.
Joseph Biasi, Maurice Tivey, Bailey Fluegel   +2 more
doaj   +1 more source

Phylogenetic diversity and functional gene patterns of sulfur-oxidizing subseafloor Epsilonproteobacteria in diffuse hydrothermal vent fluids

Frontiers in Microbiology, 2013
Microorganisms throughout the dark ocean use reduced sulfur compounds for chemolithoautotrophy. In many deep-sea hydrothermal vents, sulfide oxidation is quantitatively the most important chemical energy source for microbial metabolism both at and ...
Nancy H Akerman, Nancy H Akerman, David A Butterfield, Julie A Huber   +3 more
doaj   +1 more source

Paleointensity of the geomagnetic field in the Late Cretaceous and earliest Paleogene obtained from drill cores of the Louisville seamount trail

Geochemistry, Geophysics, Geosystems, 2014
Information on the strength of the geomagnetic field is important for understanding the behavior of the geodynamo. Polarity reversal frequency increases toward the late Cenozoic since the end of the Cretaceous Normal Superchron.
Toshitsugu Yamazaki, Yuhji Yamamoto
doaj   +1 more source

Seafloor magnetotelluric sounding above axial seamount

Geophysical Research Letters, 1996
Axial Seamount is a large, active, ridge axis volcano located on the central segment of the Juan de Fuca Ridge in the northeast Pacific Ocean. Magnetotelluric (MT) data have been collected at three sites, approximately 4 km apart around the eastern rim of the volcano, during a 65‐day deployment.
Graham Heinson, Steven Constable, Antony White   +2 more
openaire   +1 more source

Individual hydrothermal vents at Axial Seamount harbor distinct subseafloor microbial communities [PDF]

FEMS Microbiology Ecology, 2009
The microbial community structure of five geographically distinct hydrothermal vents located within the Axial Seamount caldera, Juan de Fuca Ridge, was examined over 6 years following the 1998 diking eruptive event. Terminal restriction fragment length polymorphism (TRFLP) and 16S rRNA gene sequence analyses were used to determine the bacterial and ...
Andrew D, Opatkiewicz, David A, Butterfield, John A, Baross   +2 more
openaire   +2 more sources

The 1998 eruption of Axial Seamount: New insights on submarine lava flow emplacement from high‐resolution mapping

Geochemistry, Geophysics, Geosystems, 2013
Axial Seamount, an active submarine volcano on the Juan de Fuca Ridge at 46°N, 130°W, erupted in January 1998 along 11 km of its upper south rift zone.
W. W. Chadwick Jr., D. A. Clague, R. W. Embley, M. R. Perfit, D. A. Butterfield, D. W. Caress, J. B. Paduan, J. F. Martin, P. Sasnett, S. G. Merle, A. M. Bobbitt   +10 more
doaj   +1 more source

A new species of Arene (Vetigastropoda, Areneidae) from Canopus Bank, off NE Brazil

Papéis Avulsos de Zoologia, 2018
Arene lychee sp. nov. is described from Canopus Bank, a seamount located ~190 km off Fortaleza, Ceará, NE Brazil (02°14’25”S, 38°22’50”W), based on shell morphology.
Daniel Caracanhas Cavallari, Luiz Ricardo Lopes de Simone   +1 more
doaj   +1 more source

Detection of Magma Beneath the Northern and Southern Rift Zones of Axial Seamount at the Juan de Fuca Ridge

Geochemistry, Geophysics, Geosystems, 2022
Axial Seamount is an active hotspot‐related volcanic system located along the Juan de Fuca Ridge (JdFR) that includes a central volcano and bounding northern and southern rift zones (NRZ and SRZ).
Michelle K. Lee, Suzanne M. Carbotte, Adrien F. Arnulf   +2 more
doaj   +1 more source