Results 71 to 80 of about 2,201 (156)

Review of Research Progress on the Impact of Submarine Groundwater Discharge on Pockmark Formation and Evolution

open access: yesJournal of Marine Science and Engineering
Pockmarks are globally distributed geomorphic features exhibiting diverse morphologies. Their geometric characteristics are commonly quantified by the radius-to-depth ratio.
Zhengrong Zhang   +6 more
doaj   +1 more source

ROV cruises of the pockmarks Chez-le-Bart (CB), Treytel (TR), and La Lance (LL) in Lake Neuchatel, Switzerland in 2017

open access: yes, 2020
A Remotely Operated Vehicle (RB600, Eprons Latvia) was used to survey the giant pockmarks. The ROV was equipped with a 360° sonar (SeaPrince, Tritech) and registered video material in VHS and HD quality. A light CTD probe (DCX-22-CTD, Keller Switzerland)
Wirth, Stefanie B   +2 more
core   +1 more source

Two-Phase Pockmark Modeling and Gas Saturation Estimation Beneath Hydrate-Bearing Sediments: Insights from the Storegga Slide

open access: yesGeosciences
Fluid seepages and seabed pockmarks are widely observed on continental margins worldwide in hydrate- and non-hydrate-bearing sediment. Subsurface gas chimneys connecting seafloor pockmarks to underlying gas reservoirs are commonly revealed by seismic ...
Zheng Su   +3 more
doaj   +1 more source

BLACK SEA POCKMARKS

open access: yesГеологія і корисні копалини Світового океану, 2019
The article considers the existing models of pokmark formation, processes and structures that form them. Special attention is paid to the regularities of their development in the Black Sea, shape, size and features that are of interest for further study ...
E.N. Rybak, L.V. Stupina
doaj   +1 more source

Gashydrates, gas seeps and pockmarks in the zones of development of mud volcanism Mediterranean, Black and Caspian seas

open access: yesМінеральні ресурси України, 2019
Based on an analytical review of factual materials, the article discusses the peculiarities of the distribution of gas hydrates in the development zones of mud volcanism of the Mediterranean, Black and Caspian seas, which are direct indications of ...
Ad. A. Aliyev   +2 more
doaj   +1 more source

Alternatives for Hydrocarbon Exploration Offshore Southern Cuba

open access: yesRevista Cubana de Ingeniería, 2014
Today oil and gas exploration has integrated to the geology and geophysics studies, new technologiesas data from remote sensing that helps to detect interesting aspects for research. Cuban southernpetroleum province has a low exploration level. The study
Isabel Morales Carrillo   +3 more
doaj   +1 more source

Deep and shallow structures of large pockmarks in the Turkish shelf, Eastern Black Sea

open access: yes, 2003
Circular and elongated pockmarks are present between 180- and 300-m water depths in the Eastern Black Sea shelf. The circular pockmarks have diameters of 50-120 m and the elongated pockmarks are 150-200 m wide with crater depths of 10-25 m.
DONDURUR, DERMAN   +2 more
core   +1 more source

Scotland's pockmarks: understanding their formation and relationship to buried carbon in fjordic systems [PDF]

open access: yes, 2021
Pockmarks are concave seabed depressions formed by the venting of sub-seabed fluids into the water column. These fluids can contain greenhouse gases such as methane and carbon dioxide, formed by the microbial breakdown of organic carbon, thus creating a ...
Audsley, Allan
core  

Ferdinandea Island and Graham Bank, Sicily Channel: An Integrated Historical, Geological and Geomorphological Synthesis of a Shallow Submarine Monogenetic Volcanic Field

open access: yesJournal of Marine Science and Engineering
Ferdinandea Island, part of a shallow-water submarine volcanic field, emerged in the Sicily Channel between Italy and Tunisia in July 1831 and was eroded below sea level within months; its submerged remnant forms the shallowest water depth region of ...
Daniele Spatola   +5 more
doaj   +1 more source

Pockmarks in Passamaquoddy Bay, New Brunswick, Canada

open access: yes, 2016
Pockmarks are seafloor depressions associated with fluid escape (Judd & Hovland 2007). They proliferate in the muddy seafloors of coastal Gulf of Maine and Bay of Fundy, where they are associated with shallow natural gas likely of biogenic origin (Ussler
Brothers, L. L.   +6 more
core   +1 more source

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