Origin of High Density Seabed Pockmark Fields and Their Use in Inferring Bottom Currents [PDF]
Geosciences, 2018 Some of the highest density pockmark fields in the world have been observed on the northwest Australian continental shelf (>700/km2) where they occur in muddy, organic-rich sediment around carbonate banks and paleochannels.
Kim Picard +9 more
doaj +4 more sources
Using Distributed Temperature Sensing for Long-Term Monitoring of Pockmark Activity in the Gulf of Patras (Greece): Data Processing Hints and Preliminary Findings [PDF]
Sensors, 2023 Patras Gulf pockmark field (Western Greece) is a tectonically controlled field that has been activated at least twice by strong earthquakes (M5.4, 14 July 1993 and M6.4, 8 June 2008), and episodic gas seepages have been recorded in the past using ...
Elias Fakiris +8 more
doaj +2 more sources
Surface gas hydrates and seep features in the Krishna Godavari Basin, Bay of Bengal [PDF]
Scientific ReportsThe Krishna-Godavari (K-G) Basin along the eastern continental margin of India is characterized by active methane seepage and documented subsurface gas hydrate accumulations; however, constraints on gas hydrate occurring at or near the seafloor remain ...
V. B. Subin Raj +9 more
doaj +2 more sources
The spatial and temporal distribution of pipe and pockmark formation [PDF]
This research concentrates on two study areas. A family of blowout pipes from North Namibia imaged in 3D seismic data; and a group of large buried pockmarks and a field of small seabed pockmarks from the Western Nile Deep Sea Fan (NDSF) imaged in ...
Moss, Jennifer Leigh
core +6 more sources
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
Characteristics, classification and genetic mechanism of pockmarks
地质科技通报, 2023 Pockmarks are a kind of negative geomorphology formed by overpressure fluid spilling from the seabed. They are widely distributed in various underwater tectonic environments (such as continental margin basins and accretion wedges).
Ao Shen +3 more
doaj +1 more source
Observations of pockmark flow structure in Belfast Bay, Maine [PDF]
, 2013 Vertical current and CTD profiles were acquired over a small, spherical pockmark and a larger, more elongated pockmark in Belfast Bay, Maine in July 2011.
Fandel, Christina L
core +2 more sources
Earth and Space Science, 2023 Mechanisms related to sub‐seabed fluid flow processes are complex and inadequately understood. Petrophysical properties, availability of gases, topography, stress directions, and various geological parameters determine the location and intensity of ...
Sunny Singhroha +6 more
doaj +1 more source
Frontiers in Marine Science, 2021 Cold seeps occur globally in areas where gases escape from the seafloor, occasionally resulting in the formation of topographic depressions (pockmarks), characterised by unique physicochemical conditions such as anoxic and sulphuric sediments.
Lara Macheriotou +6 more
doaj +1 more source
Characterization of the organic matter in pockmark areas of the Southwestern Atlantic upper slope
Ocean and Coastal Research, 2022 Pockmarks are circular or elliptical structures formed at the seabed by the expulsion of gas from the subsurface. They are widely distributed along the continental margin off southeastern Brazil and can be over a kilometer wide and 100 meters deep ...
Rafael André Lourenço +16 more
doaj +2 more sources