Results 21 to 30 of about 6,266 (245)
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
Frontiers in Marine Science, 2020 Cold seep areas are extremely reduced habitats with spatiotemporal variation of hydrocarbon-rich fluid seepage, low oxygen levels, and great habitat heterogeneity.
Diego Cepeda +3 more
doaj +1 more source
Pockmarks: Refuges for marine benthic biodiversity [PDF]
Limnology and Oceanography, 2009 Pockmarks are one of the most obvious and abundant structural features of the North Sea seabed, yet their influence on fauna is virtually unknown. We report the distribution of benthic megafaunal assemblages in and around four "pockmark complexes" in the North Sea to determine the structure of megafaunal communities inside pockmarks and whether these ...
Webb, Karen E. +2 more
openaire +2 more sources
IDENTIFICATION ACTIVE POCKMARKS USING THE COMBINATION OF SIDE SCAN SONAR AND SUB-BOTTOM PROFILER
Journal of Marine Science and Technology, 2023 It should be suitable for direct inclusion in abstracting services and should not normally be more than 300 words. Geohazards assessments are important before any engineering activity as they could block facilities and cause millions of dollars in losses.
Rifki Ade Riyatna
semanticscholar +1 more source
Geosciences, 2021 Sub-seabed gas is commonly associated with seabed depressions known as pockmarks—the main venting sites for hydrocarbon gases to enter the water column.
Allan Audsley +3 more
doaj +1 more source
The morphology of pockmarks on the north-east Antarctic Peninsula continental shelf
Antarctic Science, 2022 Pockmarks are sea-floor depressions that form when gas or liquid escapes from underlying sediments. Although they are a common feature of both glaciated and lower-latitude continental shelves, pockmarks have not been reported previously from the north ...
C. Batchelor +4 more
semanticscholar +1 more source
Geophysical evidence for submarine methane seepage on the Western slope of Okinawa Trough
Frontiers in Earth Science, 2022 Identifying seafloor methane seepage efficiently has important implications for assessing environmental impact, reducing the uncertainty of top seal integrity, understanding the petroleum system, and mitigating the drilling hazards due to shallow gas ...
Di Luo +13 more
doaj +1 more source
Space-time evolution of a large field of pockmarks in the Bay of Concarneau (NW Brittany)
BSGF - Earth Sciences Bulletin, 2017 About a decade ago, a large field of pockmarks, covering an overall area of 36 km2 was discovered in water depths of
Baltzer Agnès +5 more
doaj +1 more source
Distribution and origin of natural gas leakage in the Colorado Basin, offshore Argentina Margin, South America : seismic interpretation and 3D basin modelling [PDF]
, 2014 The detailed analysis of a dense 2D seismic reflection dataset and data from 8 exploration wells, allowed us to identify, map out and characterize possible indications of past and present-day hydrocarbon leakage (i.e.
Anka, Z. +5 more
core +1 more source
Pockmarks in the inner Oslofjord, Norway [PDF]
Geo-Marine Letters, 2008 Multibeam bathymetric surveys of the Inner Oslofjord, Norway have revealed a high density of pockmarks in the 179-km2 inner fjord area, which contains over 500 pockmarks of varying size, typically 20–50 m in diameter and 2–10 m deep. These pockmarks have been investigated with a variety of techniques, including acoustic subbottom profiling ...
Karen E. Webb +3 more
openaire +1 more source