Results 71 to 80 of about 2,159 (196)

Halos of Enhanced Sediment Alteration Above Buried Seamounts Approaching the Cascadia Subduction Zone

Geochemistry, Geophysics, Geosystems
Sediment thermal history controls the progress of diagenetic reactions that can alter the mechanical behavior of material entering a subduction zone that then: accretes to the margin, hosts the plate boundary interface, or is carried deeper within the ...
Benjamin S. Norvell, Glenn A. Spinelli, Robert N. Harris, Anne M. Tréhu, Michelle Lee, Suzanne Carbotte   +5 more
doaj   +1 more source

Bathymetry Prediction With SWOT Gravity Anomaly Using Machine Learning Methods: Paper 2—Model Evaluation and Uncertainty Analysis

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Despite millions of ship soundings, bathymetry from satellite derived gravity is still necessary to fill in approximately three quarters of the global oceans. The methods used to carry out this inference have not changed significantly since the 1990s; however new methodology involving Machine Learning (ML) improves the bathymetric predictions ...
Bjarke Nilsson, Benjamin J. Phrampus, Farshad Salajegheh, Biao Lu, Yao Yu, David Sandwell, Ole B. Andersen, Walter H. F. Smith, Paul Elmore, Jonathan F. Kirby, Luis Altamirano   +10 more
wiley   +1 more source

The complete mitochondrial genome of a deep sea ophiuroid of the genus Amphiura (Ophiuroidea: Amphiuridae)

Mitochondrial DNA. Part B. Resources, 2019
Amphiura is a widely distributed genus of Ophiuroidea from various environment, play an important role in evolution. Here, we reported a complete mitochondrial genome of Amphiura sp. which was collected from a deep sea seamount in the West Pacific.
Jieying Na, Dongsheng Zhang, Hong Cheng, Juan Yang, Ruiyan Zhang, Wanying Chen, Chunsheng Wang   +6 more
doaj   +1 more source

Multi‐Scale Spatial Variations in Pacific Mantle Seismic Anisotropy: Constraints on Plate Evolution and Asthenospheric Flow

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract We present array‐scale (∼500 × 500 km) anisotropic shear‐velocity models from two Pacific ocean‐bottom seismometer (OBS) arrays of the OBS Research in the Convecting Asthenosphere (ORCA) experiment: Young ORCA (∼43 Ma) and Old ORCA (∼90 Ma). Rayleigh‐wave phase velocities spanning 5–150 s are combined with Love‐wave phase velocities from 5 to ...
Joseph H. Phillips, James B. Gaherty, Joshua B. Russell, Zachary C. Eilon, Donald W. Forsyth, Joseph S. Byrnes   +5 more
wiley   +1 more source

Preconditioning of Polynya Formation by Ocean Mixing at Maud Rise, Antarctica

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Antarctic open‐ocean polynyas trigger vigorous wintertime convection, influencing ocean circulation and atmospheric processes. In the Weddell Sea, interaction between the Weddell Gyre and the Maud Rise seamount generates a Taylor column that favors polynya formation.
Xingchi Wang, Alberto C. Naveira Garabato, Bieito Fernández Castro, Xin Wang, Sebastiaan Swart, Marcel Du Plessis, Aditya Narayanan, Alessandro Silvano, Louis Clément, Margaret Ruth Lindeman   +9 more
wiley   +1 more source

Does the Zhenbei seamount in the South China Sea harbor distinctive biodiversity? A primary study based on eDNA metabarcoding

Global Ecology and Conservation
The South China Sea is one of the regions with the richest marine biodiversity in the world, featuring a variety of ecological environment such as deep-sea plains, seamounts, and cold springs. Currently, studies on the biodiversity of the South China Sea
Xiaofei Chen, Hui Jia, Hui Zhang
doaj   +1 more source

An Overview of Seabed Mining Including the Current State of Development, Environmental Impacts, and Knowledge Gaps

Frontiers in Marine Science, 2018
Rising demand for minerals and metals, including for use in the technology sector, has led to a resurgence of interest in exploration of mineral resources located on the seabed.
Kathryn A. Miller, Kirsten F. Thompson, Kirsten F. Thompson, Paul Johnston, David Santillo   +4 more
doaj   +1 more source

Submarine Flank Collapses at Tagoro Volcano: Insights From Bathymetric Surveys and 3D Multiphase Simulations

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Volcanic islands are prone to flank instabilities that can generate tsunamis even when mobilized volumes are moderate. This study investigates submarine collapses during the 2011–2012 eruption south of El Hierro, which built the Tagoro submarine volcano.
E. P. Montellà, A. Romano, G. Barajas, J. A. Lozano, J. T. Vázquez, J. L. Lara, E. Fraile‐Nuez   +6 more
wiley   +1 more source

Assessment of a Finite Volume Discretization of the Horizontal Pressure Gradient Force Beneath Sloping Ice Shelves

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract The accurate computation of pressure gradients in ocean models is essential for simulating ocean and climate processes. Inaccurate computation can result in spurious velocities on the order of real ocean flows, particularly in quiescent ice shelf cavities.
C. K. Yung, R. W. Hallberg, A. Adcroft, A. K. Morrison   +3 more
wiley   +1 more source

Relationship between viral and prokaryotic abundance on the Bajo O’Higgins 1 Seamount (Humboldt Current System off Chile)

Scientia Marina, 2007
There is little known about the ecology of microbial communities living in the water column over seamounts. Here, for the first time, the spatial distribution and abundance of virus-like particles (VLP) are described over a seamount.
Oscar E. Chiang, Renato A. Quiñones
doaj   +1 more source