Results 61 to 70 of about 1,263 (158)
Limnology and Oceanography, Volume 71, Issue 4, April 2026.Abstract Methane (CH4) production in lacustrine sediments is known to be spatially heterogeneous, varying both horizontally and vertically. Porewater methane concentrations often differ between locations within a lake and with depth within the sediment profile. The drivers of this heterogeneity are often not well understood.
Sigrid van Grinsven +10 more
wiley +1 more source
Journal of Marine Science and EngineeringSubmarine pockmarks are typical seafloor micro-geomorphic landforms formed by deep fluid seepage and sediment erosional processes. Based on high-resolution multibeam bathymetric data, multi-channel seismic sections and sediment core data, the present ...
Tianqi Lu +5 more
doaj +1 more source
Linking geology and microbiology: inactive pockmarks affect sediment microbial community structure. [PDF]
PLoS ONE, 2014 Pockmarks are geological features that are found on the bottom of lakes and oceans all over the globe. Some are active, seeping oil or methane, while others are inactive.
Thomas H A Haverkamp +2 more
doaj +1 more source
Paleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.Abstract The seafloor morphology and subsurface geometry of a late Neogene contourite drift located along the Peru margin is documented for the first time using multibeam bathymetry, two‐dimensional and three‐dimensional seismic data. Along the margin several submarine canyons incise the shelf and slope.
Gérôme Calvès +4 more
wiley +1 more source
, 2010 Pockmarks form where fluids discharge through seafloor sediments rapidly enough to make them quick, and are common where gas is present in near-seafloor sediments. This paper investigates how gas might lead to pockmark formation.
Su, Zheng, Cathles, L. M., Chen, Duofu
core +1 more source
Russian Journal of Earth Sciences, 2020 An analysis of the of the chemical composition of the upper slimy precipitate layer in the Gdansk Deep demonstrated increased concentrations of Ca, Mg, K, and Na in areas associated with tectonic faults.
Krek Alexander +3 more
doaj +1 more source
Holocene subaqueous landslide dynamics in the Lake Siljan‐Orsasjön Basin, south‐central Sweden
Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.Subaqueous landslide areas studied by multibeam bathymetry, sub‐bottom profiling and sediment coring reveal complex stratigraphies, suggesting mass movement events starting close to the area's deglaciation and up to very recent times. Abstract The Siljan‐Orsasjön Basin in south‐central Sweden hosts two prominent lakes.
Per Möller +6 more
wiley +1 more source
, 2022 Supplementary Materials Methane-related community of a carbonate-enriched pockmark, Brazilian Southeastern continental ...
Nakamura, Fernanda Mancini
core +1 more source
Acoustic detection of seabed hydrocarbon seepage in the north depression of South Yellow Sea Basin
Petroleum Exploration and Development, 2009 The full-covered Side-Scan Sonar and high-resolution seismic survey method is initially used to research on the seabed hydrocarbon seepage in the survey area, for the purpose of the following: clarifying the shallow acoustic features related to seabed ...
Zhao Tiehu +3 more
doaj +1 more source
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.The Pool Burn basin is a tectonic depression that became almost isolated from the regional drainage system by river reorientation during Pleistocene uplift of surrounding ridges. Consequently, detrital gold in the basin was largely locally derived, from supergene zones on orogenic deposits and recycled from paleoplacers in erosional remnants of Miocene
Marshall Palmer, Dave Craw
wiley +1 more source