Results 21 to 30 of about 1,263 (158)

Distribution and classification of pockmarks on the seabed around western Scotland

Journal of Maps, 2019
Pockmarks are seabed depressions that represent primary evidence of rapid biogenic/thermogenic gas build up and fluid release from seabed sediments to the water column.
Allan Audsley, Tom Bradwell, John A. Howe, John M. Baxter   +3 more
doaj   +1 more source

Shallow stratigraphic control on pockmark distribution in north temperate estuaries [PDF]

, 2012
This paper is not subject to U.S. copyright. The definitive version was published in Marine Geology 329-331 (2012): 34-45, doi:10.1016/j.margeo.2012.09.006.Pockmark fields occur throughout northern North American temperate estuaries despite the absence ...
Legere, Christine, Barnhardt, Walter A., Brothers, Laura L., Kelley, Joseph T., Belknap, Daniel F., Andrews, Brian D., Hughes Clarke, John E.   +6 more
core   +1 more source

Lacustrine Groundwater Discharge Through Giant Pockmarks (Lake Neuchatel, Switzerland)

Frontiers in Water, 2020
Pockmarks are circular depressions on the floor of oceans and lakes and constitute potential hot spots of gas ebullition and/or groundwater discharge. Marine pockmarks are well-studied, whereas lacustrine pockmarks are virtually unexplored.
Stefanie B. Wirth, Damien Bouffard, Jakob Zopfi   +2 more
doaj   +1 more source

The Gela Basin pockmark field in the strait of Sicily (Mediterranean Sea): chemosymbiotic faunal and carbonate signatures of postglacial to modern cold seepage [PDF]

Biogeosciences, 2013
The geo-biological exploration of a pockmark field located at ca. 800 m below sea level in the Gela basin (Strait of Sicily, Central Mediterranean) provided a relatively diverse chemosymbiotic community and methane-imprinted carbonates.
M. Taviani, L. Angeletti, A. Ceregato, F. Foglini, C. Froglia, F. Trincardi   +5 more
doaj   +1 more source

Gas Seepage-Induced Features in the Hypoxic/Anoxic, Shallow, Marine Environment of Amfilochia Bay, Amvrakikos Gulf (Western Greece)

Geosciences, 2021
Amfilochia Bay (Eastern Amvrakikos Gulf, Western Greece), a complex marine area affected by tectonism, was investigated for seabed seepage manifestations and for possible inter-relationships between shallow gas accumulations and hypoxia. For this purpose,
Stavroula Kordella, Dimitris Christodoulou, Elias Fakiris, Maria Geraga, Sotiris Kokkalas, Giuditta Marinaro, Margarita Iatrou, George Ferentinos, George Papatheodorou   +8 more
doaj   +1 more source

Seismic Characteristics of Paleo-Pockmarks in the Great South Basin, New Zealand

Frontiers in Earth Science, 2021
Globally, a wide range of pockmarks have been identified onshore and offshore. These features can be used as indicators of fluid expulsion through unconsolidated sediments within sedimentary basin-fills.
Arunee Karaket, Piyaphong Chenrai, Piyaphong Chenrai, Mads Huuse   +3 more
doaj   +1 more source

First documented record of a living solemyid bivalve in a pockmark of the Nile Deep-sea Fan (eastern Mediterranean Sea) [PDF]

, 2011
A living specimen of a solemyid bivalve was collected at bathyal depths near a pockmark in the Nile Deep-sea Fan (eastern Mediterranean) and is here presented.
Gaudron, Sylvie M., Rodrigues, Clara F., Clara F. Rodrigues, Sébastien Duperron, Sylvie M. Gaudron, Duperron, Sébastien   +5 more
core   +1 more source

The diverse morphology of pockmarks around Aotearoa New Zealand

Frontiers in Marine Science, 2023
Seafloor pockmarks are abundant around Aotearoa New Zealand, occurring across a diverse range of tectonic, sedimentological and geomorphological settings.
Jess I. T. Hillman, Sally Joan Watson, Sally Joan Watson, Katherine Leigh Maier, Jasper Justus Lutz Hoffmann, Jasper Justus Lutz Hoffmann, Kyle J. Bland, Fynn Warnke, Ingo A. Pecher, Andrew Robert Gorman, Bryan Davy, Suzanne Bull, Susi Woelz   +12 more
doaj   +1 more source

Morphology, Formation, and Activity of Three Different Pockmark Systems in Peri-Alpine Lake Thun, Switzerland

Frontiers in Water, 2021
Pockmarks are crater-like depressions formed by upward fluid flow (gas and/or liquid) through the unconsolidated sediment column on the floor of oceans and lakes.
Adeline N. Y. Cojean, Katrina Kremer, Maciej Bartosiewicz, Stefano C. Fabbri, Moritz F. Lehmann, Stefanie B. Wirth   +5 more
doaj   +1 more source

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

Geosciences
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, Yifan Wu, Chao Yang, Nengyou Wu   +3 more
doaj   +1 more source