Methane seepage at Vestnesa Ridge (NW svalbard) since the last glacial maximum

A Schneider, G Panieri, A Lepland, C Consolaro… - Quaternary Science …, 2018 - Elsevier
Multiple proxies in the geological record offshore NW Svalbard track shallow subseafloor
diagenesis and seafloor methane seepage during the Last Glacial Maximum (LGM) extent …

Reduced methane seepage from Arctic sediments during cold bottom-water conditions

B Ferré, PG Jansson, M Moser, P Serov, A Portnov… - Nature …, 2020 - nature.com
Large amounts of methane are trapped within gas hydrate in subseabed sediments in the
Arctic Ocean, and bottom-water warming may induce the release of methane from the …

Environmental challenges related to methane hydrate decomposition from climate change scenario and anthropic activities: State of the art, potential consequences …

L Ruffine, AM Tang, N O'Neill, L Toffin, JD Paris… - Earth-Science …, 2023 - Elsevier
Natural gas hydrate deposits (NGHD) have been investigated for decades and represent
one of the major methane reservoirs on Earth. They are encountered in sediment of both the …

[HTML][HTML] Gas hydrates in shallow sediments as capacitors for cold seep ecosystems: Insights from in-situ experiments

X Zhang, Z Luan, Z Du, S Xi, L Li, C Lian… - Earth and Planetary …, 2023 - Elsevier
Cold seep ecosystems are characterized by a dense accumulation of chemosynthetic
communities that utilize the chemical energy contained in fluids. Due to various technical …

Correlation between tectonic stress regimes and methane seepage on the western Svalbard margin

A Plaza-Faverola, M Keiding - Solid Earth, 2019 - se.copernicus.org
Methane seepage occurs across the western Svalbard margin at water depths ranging
from< 300 m, landward from the shelf break, to> 1000 m in regions just a few kilometres from …

Estimates of methane release from gas seeps at the southern Hikurangi Margin, New Zealand

F Turco, Y Ladroit, SJ Watson, S Seabrook… - Frontiers in Earth …, 2022 - frontiersin.org
The highest concentration of cold seep sites worldwide has been observed along
convergent margins, where fluid migration through sedimentary sequences is enhanced by …

Variability of natural methane bubble release at Southern Hydrate Ridge

Y Marcon, D Kelley, B Thornton… - Geochemistry …, 2021 - Wiley Online Library
Current estimations of seabed methane release into the ocean (0.4–48 Tg yr− 1) are based
on short‐term observations and implicitly assume that fluxes are constant over time …

Event recognition in marine seismological data using Random Forest machine learning classifier

P Domel, C Hibert, V Schlindwein… - Geophysical Journal …, 2023 - academic.oup.com
Automatic detection of seismic events in ocean bottom seismometer (OBS) data is difficult
due to elevated levels of noise compared to the recordings from land. Popular deep-learning …

Nonseismic signals in the ocean: Indicators of deep sea and seafloor processes on ocean‐bottom seismometer data

E Batsi, E Tsang‐Hin‐Sun… - Geochemistry …, 2019 - Wiley Online Library
Ocean‐bottom seismometers (OBSs) commonly record short‐duration events (SDEs) that
could be described by all of these characteristics:(i) duration< 1 s,(ii) one single‐wave train …

Autonomous methane seep site monitoring offshore western Svalbard: hourly to seasonal variability and associated oceanographic parameters

KO Dølven, B Ferré, A Silyakova… - Ocean Science …, 2021 - os.copernicus.org
Improved quantification techniques of natural sources is needed to explain variations in
atmospheric methane. In polar regions, high uncertainties in current estimates of methane …