Results 61 to 70 of about 344,095 (178)

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

Characterizing the Forearc Basement and Subducting Structures of the Northern Ecuadorian Margin

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract We present 2D P‐wave velocity (Vp) models from the northern Ecuadorian subduction zone, north of the Carnegie Ridge. Data were collected during the HIPER2 3D wide‐angle seismic experiment, both onshore and offshore. Key seismic profiles were manually picked to determine P‐wave first‐arrival times, which were used for a traveltime tomographic ...
Arnaud Delsuc, Audrey Galve, Mireille Laigle, Andreas Rietbrock, Laure Schenini, Hans Agurto‐Detzel, Alexandra Skrubej, Boris Marcaillou, Sandro Vaca, Annika Maier, Michele Paulatto   +10 more
wiley   +1 more source

Acoustic noise measurements on Axial Seamount, Juan De Fuca Ridge

Geophysical Research Letters, 1986
Anomalously high ambient acoustic noise was observed within the caldera of Axial Seamount, located on the Juan de Fuca Ridge at 46°N. Noise spectra from 2 to 30 Hz were calculated from hydrophone signals from four separate seismic recording systems. Noise levels varied up to 25 dB over 6 km.
L. D. Bibee, R. S. Jacobson
openaire   +1 more source

Thermal and Structural Signatures Associated With Subducted Seamounts in Hyuga‐nada and Off Cape Muroto, Southwest Japan

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract We present heat flow estimates beneath the forearc slopes off Hyuga‐nada and Cape Muroto in the Nankai Trough, where the Philippine Sea plate subducts beneath the southwestern Japan. Using seismic reflection data, we identified Bottom Simulating Reflectors and derived heat flow ranging from 20 to >140 mW/m2.
Masataka Kinoshita, Kazuya Shiraishi, Yoshitaka Hashimoto, Yohei Hamada, Rie Nakata   +4 more
wiley   +1 more source

Improved Half‐Space Cooling Model Reconciles Bathymetry and Thermal Evolution of the Southwest Subbasin, South China Sea

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The bathymetry of marginal sea basins commonly deviates from depths calculated by classical lithospheric cooling models, yet the controlling mechanisms remain debated. Here, using 19 seismic profiles and corrected local heat‐flow data, we apply an improved half‐space cooling model within a two‐stage reconstruction to reassess thermal ...
Penggao Fang, Weiwei Ding
wiley   +1 more source

Linking Tectonics and Cratonic Vertical Motions: Deep‐Time Thermochronology Reveals >1,000 Myr of Low‐Temperature Conditions in Southeastern Finland

Tectonics, Volume 45, Issue 9, September 2026.
Abstract The Fennoscandian Shield potentially hosts the longest continuous habitable conditions for Earth's deep biosphere. Billion‐year equilibrium freeboard conditions of cratons and the longevity of deep biosphere microbial communities are directly related through the thermal histories of rocks that host these communities.
Josh Isaacs, William Guenthner, Henrik Drake, C. Brenhin Keller, Kalin T. McDannell   +4 more
wiley   +1 more source

Axial Seamount Eruption Forecasting Experiment

We introduce the Axial Seamount Eruption Forecasting Experiment (EFE), a real-time initiative designed to test the predictability of volcanic eruptions through a transparent, physics-based framework. The experiment is inspired by the Financial Bubble Experiment, adapting its principles of digital authentication, timestamped archiving, and delayed ...
Lei, Qinghua, Sornette, Didier, Chadwick Jr., William W., Nooner, Scott L., Zhang, Maochuan, Wilcock, William S. D.   +5 more
openaire   +2 more sources

Deep blueprint: A literature review and guide to automated image classification for ecologists

Journal of Animal Ecology, Volume 95, Issue 9, Page 1558-1585, September 2026.
A practical, literature‐grounded review that gives ecologists a clear, modular workflow for deep learning image classification. With code, GUIs and a novel deep sea case study (automated deep sea biotope classification) it lowers technical barriers and provides a usable blueprint for accelerating, standardising, and scaling ecological image analysis ...
Chloe A. Game, Nils Piechaud, Kerry L. Howell   +2 more
wiley   +1 more source

The Next Decade of Observations at Axial Seamount: A Geophysical Perspective

, 2020
The Ocean Observatories Initiative Cabled Array (OOI-CA) is a 25-year facility that provides unprecedented power and communications at Axial Seamount and sites on the Cascadia continental margin. Although the OOI is sometimes viewed as too expensive, the CA provides two capabilities that would be infeasible in autonomous configurations.
openaire   +1 more source

Annual Carbon Export at the North Pacific Axial Seamount

, 2019
As anthropogenic CO2 levels rise, it becomes increasingly important to quantify the flux from the surface ocean down into the deep, where it may be sequestered for thousands of years.
Miller, Leroy
core