Mechanisms of methane hydrate formation in geological systems
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 …
found in sediments along the world's continental margins and within and beneath permafrost …
Structural controls on widespread methane seeps in the back-arc basin of the Mid-Okinawa Trough
Methane trapped in marine sediments surrounding continental margins can be driven by
tectonic stress to escape into the oceans. What geological processes control their spatial …
tectonic stress to escape into the oceans. What geological processes control their spatial …
Impact of tides and sea-level on deep-sea Arctic methane emissions
N Sultan, A Plaza-Faverola… - Nature …, 2020 - nature.com
Sub-sea Arctic methane and gas hydrate reservoirs are expected to be severely impacted by
ocean temperature increase and sea-level rise. Our understanding of the gas emission …
ocean temperature increase and sea-level rise. Our understanding of the gas emission …
Methane seeps on the outer shelf of the Laptev Sea: characteristic features, structural control, and benthic fauna
B Baranov, S Galkin, A Vedenin, K Dozorova… - Geo-Marine Letters, 2020 - Springer
Two areas with cold methane seeps on the outer shelf of the Laptev Sea were studied by
two interdisciplinary expeditions onboard the RV Akademik Mstislav Keldysh in August …
two interdisciplinary expeditions onboard the RV Akademik Mstislav Keldysh in August …
Resolving hydromechanical coupling in two and three dimensions: spontaneous channelling of porous fluids owing to decompaction weakening
Fingering, veining, channelling and focussing of porous fluids are widely observed
phenomena in the Earth's interior, driving a range of geo-processes across all scales. While …
phenomena in the Earth's interior, driving a range of geo-processes across all scales. While …
Gas‐driven tensile fracturing in shallow marine sediments
The flow of gas through shallow marine sediments is an important component of the global
carbon cycle and affects methane release to the ocean and atmosphere as well as …
carbon cycle and affects methane release to the ocean and atmosphere as well as …
Glacially induced stress across the Arctic from the Eemian interglacial to the present—implications for faulting and methane seepage
R Vachon, P Schmidt, B Lund… - Journal of …, 2022 - Wiley Online Library
Strong compressive and shear stresses generated by glacial loading and unloading have a
direct impact on near‐surface geological processes. Glacial stresses are constantly …
direct impact on near‐surface geological processes. Glacial stresses are constantly …
Spatial changes in gas transport and sediment stiffness influenced by regional stress: Observations from piezometer data along Vestnesa Ridge, eastern Fram Strait
Gas transport through sediments to the seabed and seepage occurs via advection through
pores, faults, and fractures, and as solubility driven gas diffusion. The pore pressure gradient …
pores, faults, and fractures, and as solubility driven gas diffusion. The pore pressure gradient …
Local seismicity and sediment deformation in the west Svalbard margin: Implications of neotectonics for seafloor seepage
P Domel, A Plaza‐Faverola… - Geochemistry …, 2023 - Wiley Online Library
Abstract In the Fram Strait, mid‐ocean ridge spreading is represented by the ultra‐slow
system of the Molloy Ridge, the Molloy Transform Fault and the Knipovich Ridge. Sediments …
system of the Molloy Ridge, the Molloy Transform Fault and the Knipovich Ridge. Sediments …
Evidence of Arctic methane emissions across the mid-Pleistocene
Abstract During the Pleistocene, Earth's climate changed dramatically. The mid-Pleistocene
transition (MPT;~ 1.3–0.7 million years (Ma)) featured an important ice volume increase at …
transition (MPT;~ 1.3–0.7 million years (Ma)) featured an important ice volume increase at …