Results 21 to 30 of about 2,201 (156)

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, Di Luo, Feng Cai, Feng Cai, Qing Li, Qing Li, Guijing Yan, Guijing Yan, Yunbao Sun, Yunbao Sun, Ang Li, Ang Li, Gang Dong, Gang Dong   +13 more
doaj   +1 more source

Chemical and physical dynamics of marine pockmarks with insights into the organic carbon cycling on the Malin Shelf and in Dunmanus Bay, Ireland. [PDF]

, 2012
Pockmarks are specific type of marine geological setting resembling craters or pits. They are considered surface expression of fluid flow in the marine subsurface.
Szpak, Michal
core   +2 more sources

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, Reynaud Marine, Ehrhold Axel, Fournier Jérôme, Cordier Céline, Clouet Hélène   +5 more
doaj   +1 more source

A geophysical study of a pockmark in the Nyegga region, Norwegian Sea [PDF]

, 2008
Over the last decade pockmarks have proven to be important seabed features that provideinformation about fluid flow on continental margins. Their formation and dynamics are stillpoorly constrained due to the lack of proper three dimensional imaging of ...
Ker, S., Gailler, Audrey, Ker, Stephan, Westbrook, G.K., Minshull, T.A., Nouzé, H, Exley, R., Berndt, C, Nouzé, Hervé, Jose, T., Exley, Russell, Berndt, C., Westbrook, Graham, Nouze, H., Berndt, Christian, Jose, Tesmi, Minshull, T, Ker, S, Gailler, A., Exley, Kevin, Westbrook, Graham K.   +20 more
core   +1 more source

The Effects of Controlling Gas Escape and Bottom Current Activity on the Evolution of Pockmarks in the Northwest of the Xisha Uplift, South China Sea

Journal of Marine Science and Engineering
Submarine pockmarks are typical indicators of submarine gas escape activity. The deep strata of the Xisha Uplift are rich in biogenic and thermogenic gas, accompanied by strong bottom current activity.
Xuelin Li, Xudong Guo, Fei Tian, Xiaochen Fang   +3 more
doaj   +1 more source

Spontaneously Exsolved Free Gas During Major Storms as an Ephemeral Gas Source for Pockmark Formation

Geochemistry, Geophysics, Geosystems, 2022
Abrupt fluid emissions from shallow marine sediments pose a threat to seafloor installations like wind farms and offshore cables. Quantifying such fluid emissions and linking pockmarks, the seafloor manifestations of fluid escape, to flow in the sub ...
S. Gupta, C. Schmidt, C. Böttner, L. Rüpke, E. H. Hartz   +4 more
doaj   +1 more source

Effects of slope instability on pockmark deformation on the continental slope in the southern South China Sea

Frontiers in Marine Science
Pockmark development and slope instability are key geological processes shaping the continental slope. In this study, high-resolution multibeam data, subbottom profiles, and a reprocessed two-dimensional seismic profile were used to identify and analyze ...
Zhihao Liu, Zhihao Liu, Ziyin Wu, Ziyin Wu, Yang Liu, Jihong Shang, Jieqiong Zhou, Jialing Zhang, Jialing Zhang   +8 more
doaj   +1 more source

Circular structures on the seabed: differentiating between natural and anthropogenic origins—Examples from the Southwestern Baltic Sea

Frontiers in Earth Science, 2023
Hydroacoustic observations of shallow marine environments reveal a variety of seafloor structures–both of natural and anthropogenic origin. Natural processes can result in features with circular geometries on the seafloor, such as kettles, sinkholes or ...
Giuliana Andrea Díaz-Mendoza, Knut Krämer, Gitta Ann von Rönn, Klaus Schwarzer, Christoph Heinrich, Hans-Christian Reimers, Christian Winter   +6 more
doaj   +1 more source

Pockmark Distribution and Genesis in the Mediterranean and Black Seas: A Regional Synthesis

Geosciences
Pockmarks are ubiquitous seafloor depressions formed by the fluid/gas seepage through marine sediments, with implications for geohazards, benthic ecosystems, and climate-related processes.
Daniele Spatola, Martin Torvald Hovland, Daniele Casalbore, Marzia Rovere, Francesco Latino Chiocci, Stéphanie Dupré, Gemma Ercilla, Aaron Micallef, George Papatheodorou, Attilio Sulli, Juan Tomás Vázquez   +10 more
doaj   +1 more source

The Duntulm sauropod tracksite and environmental partitioning in Middle Jurassic dinosaurs on the Isle of Skye, Scotland

Papers in Palaeontology, Volume 12, Issue 5, September/October 2026.
Abstract Dinosaur fossils from the Isle of Skye (Scotland, UK), particularly the abundant trace fossil record, provide a window into dinosaur evolution during the poorly known Middle Jurassic. Here we present a comprehensive description of the Duntulm tracksite from Cairidh Ghlumaig Bay, using aerial photography to provide whole site maps, catalogue ...
Paige E. dePolo, Stephen L. Brusatte, Thomas J. Challands, Davide Foffa, Mark Wilkinson, Neil D. L. Clark, Dugald A. Ross, Thomas J. Wade   +7 more
wiley   +1 more source