Mechanisms of methane hydrate formation in geological systems

K You, PB Flemings, A Malinverno… - Reviews of …, 2019 - Wiley Online Library
Natural gas hydrate is ice‐like mixture of gas (mostly methane) and water that is widely
found in sediments along the world's continental margins and within and beneath permafrost …

Hydrate occurrence in Europe: A review of available evidence

TA Minshull, H Marín-Moreno, P Betlem, J Bialas… - Marine and Petroleum …, 2020 - Elsevier
Large national programs in the United States and several Asian countries have defined and
characterised their marine methane hydrate occurrences in some detail, but European …

Native H2 Exploration in the Western Pyrenean Foothills

N Lefeuvre, L Truche, FV Donzé… - Geochemistry …, 2021 - Wiley Online Library
Native hydrogen (H2) may represent a new carbon free‐energy resource, but to date there is
no specific exploration guide to target H2‐fertile geological settings. Here, we present the …

Timescales and processes of methane hydrate formation and breakdown, with application to geologic systems

CD Ruppel, WF Waite - Journal of Geophysical Research: Solid …, 2020 - Wiley Online Library
Gas hydrate is an ice‐like form of water and low molecular weight gas stable at
temperatures of roughly− 10° C to 25° C and pressures of~ 3 to 30 MPa in geologic systems …

An integrated view of the methane system in the pockmarks at Vestnesa Ridge, 79 N

G Panieri, S Bünz, DJ Fornari, J Escartin, P Serov… - Marine Geology, 2017 - Elsevier
Abstract The Vestnesa Ridge is a NW-SE trending,~ 100 km-long, 1–2 km-thick contourite
sediment section located in the Arctic Ocean, west of Svalbard, at 79° N. Pockmarks align …

Methane cold seeps as biological oases in the high‐Arctic deep sea

EKL Åström, ML Carroll, WG Ambrose Jr… - Limnology and …, 2018 - Wiley Online Library
Cold seeps can support unique faunal communities via chemosynthetic interactions fueled
by seabed emissions of hydrocarbons. Additionally, cold seeps can enhance habitat …

Structure II gas hydrates found below the bottom‐simulating reflector

M Paganoni, JA Cartwright, M Foschi… - Geophysical …, 2016 - Wiley Online Library
Gas hydrates are a major component in the organic carbon cycle. Their stability is controlled
by temperature, pressure, water chemistry, and gas composition. The bottom‐simulating …

Enhanced CO2 uptake at a shallow Arctic Ocean seep field overwhelms the positive warming potential of emitted methane

JW Pohlman, J Greinert, C Ruppel… - Proceedings of the …, 2017 - National Acad Sciences
Continued warming of the Arctic Ocean in coming decades is projected to trigger the release
of teragrams (1 Tg= 106 tons) of methane from thawing subsea permafrost on shallow …

Bottom‐simulating reflector dynamics at Arctic thermogenic gas provinces: An example from Vestnesa Ridge, offshore west Svalbard

A Plaza‐Faverola… - Journal of …, 2017 - Wiley Online Library
Abstract The Vestnesa Ridge comprises a> 100 km long sediment drift located between the
western continental slope of Svalbard and the Arctic mid‐ocean ridges. It hosts a deep water …

Clustered BSRs: Evidence for gas hydrate-bearing turbidite complexes in folded regions, example from the Perdido Fold Belt, northern Gulf of Mexico

A Portnov, AE Cook, DE Sawyer, C Yang… - Earth and Planetary …, 2019 - Elsevier
We describe previously undocumented but extensive gas hydrate accumulations in the
mouth of Perdido Canyon in the northern Gulf of Mexico. The accumulations are located …