Results 61 to 70 of about 6,266 (245)

Role of subsea permafrost and gas hydrate in postglacial Arctic methane releases [PDF]

, 2002
The papers of this thesis are not available in Munin.Paper I: 'Offshore permafrost decay and massive seabed methane escape in water depths > 20 m at the South Kara Sea shelf.' Alexey Portnov, Andrew J.
Alexey Portnov, Andrew J. Smith, Jürgen Mienert, Georgy Cherkashov, Pavel Rekant, Peter Semenov, Pavel Serov, Boris Vanshtein   +7 more
core   +4 more sources

Experimental seabed disturbance effects on Chatham Rise deep‐sea meiofaunal communities, Southwest Pacific

New Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 5, Page 1388-1421, December 2025.
ABSTRACT Growing global demand for deep‐sea resources may lead to increased pressure on benthic ecosystems. Here we examined changes in meiofaunal communities following an in situ physical disturbance experiment. A significant change in meiofaunal community structure in surface (0‐1 cm) and subsurface (1‐5 cm) sediments was observed immediately ...
Daniel Leduc, Campbell Murray, Ashley A. Rowden, Scott D. Nodder, Rachel Hale, Malcolm R. Clark   +5 more
wiley   +1 more source

Methane-related community of a carbonate-enriched pockmark, Brazilian Southeastern continental slope

Ocean and Coastal Research, 2022
Pockmarks are geological features that often sustain hydrocarbon-related communities of microorganisms when active, seeping oil or methane. Microbial communities of inactive pockmarks have not been well studied until the present.
Fernanda Mancini Nakamura, Rafael Andre Lourenço, Caio Augusto Magalhães, Amanda Gonçalves Bendia, Ana Carolina de Araújo Butarelli, Julia Gasparini Passos, Luiza Ferreira Soares, Raissa Basti Ramos, Tailisi Hoppe Trevizani, Camila Negrão Signori, Michel Michaelovitch de Mahiques, Paulo Yukio Gomes Sumida, Vivian Helena Pellizari   +12 more
doaj   +2 more sources

GAS FLAERS AND MODERN DEGASATION PROCESSES IN THE ARCTIC SEAS (ON THE FREQUENCY RESONANCE RESULTS-BASED)

Геологія і корисні копалини Світового океану, 2023
The newly obtained results of the frequency-resonance (FR) technologies application for the study of the sources and processes of seeps and pockmarks formation in the Arctic Region (Norwegian, Barents Sea) and the North Sea are considered.
V.D. Solovyov, M.A. Yakymchuk, I.M. Korchagin   +2 more
doaj   +1 more source

Geochemical and Geophysical Monitoring of Hydrocarbon Seepage in the Adriatic Sea

Sensors, 2020
Hydrocarbon seepage is overlooked in the marine environment, mostly due to the lack of high-resolution exploration data. This contribution is about the set-up of a relocatable and cost-effective monitoring system, which was tested on two seepages in the ...
Marzia Rovere, Alessandra Mercorella, Emanuela Frapiccini, Valerio Funari, Federico Spagnoli, Claudio Pellegrini, Andree Soledad Bonetti, Tiziana Veneruso, Anna Nora Tassetti, Marcello Dell’Orso, Marco Mastroianni, Giordano Giuliani, Rocco De Marco, Gianna Fabi, Francesco Ciccone, Ilaria Antoncecchi   +15 more
doaj   +1 more source

Acoustic Evidence of Shallow Gas Occurrences in the Offshore Sinú Fold Belt, Colombian Caribbean Sea

Journal of Marine Science and Engineering, 2023
High-resolution seismic analysis and bathymetry data, used in the Offshore Sinú Fold Belt (OSFB), have revealed seabed and sub-surface anomalies, which were probably caused by the presence of shallow gas within the sedimentary records.
Ana María Osorio-Granada, Bismarck Jigena-Antelo, Juan Vidal-Perez, Enrico Zambianchi, Edward G. Osorio-Granada, Cristina Torrecillas, Jeanette Romero-Cozar, Hermann Leon-Rincón, Karem Oviedo-Prada, Juan J. Muñoz-Perez   +9 more
doaj   +1 more source

Effects of experimental in situ seabed disturbance on deep‐sea macrofaunal communities of Chatham Rise, Southwest Pacific

New Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 5, Page 1422-1459, December 2025.
ABSTRACT With the possibility of deep‐sea mining of mineral resources occurring, it is necessary to understand potential impacts on benthic communities. Previous simulated mining experiments revealed direct benthic impacts; however, indirect impacts of sedimentation are not well understood.
Campbell Murray, Ashley A. Rowden, Daniel Leduc, Scott D. Nodder, Rachel Hale, Jane Halliday, Malcolm R. Clark   +6 more
wiley   +1 more source

The benthic fauna of slope pockmarks from the Kostarrenkala area (Capbreton canyon,SE Bay of Biscay) [PDF]

Munibe Ciencias Naturales, 2010
Numerosos pockmarks de talud han sido recientemente descubiertos por cartografía multihaz (multibeam mapping) en la zona de Kostarrenkala. Mediante una draga box corer y un trineo se han muestreado por primera vez las comunidades bentónicas y ...
SORBE, C., FRUTOS, I., AGUIRREZABALAGA, F.
doaj  

The Paleozoic Hydrocarbon System in the Gotland Basin (Central Baltic Sea) Leaks

Earth and Space Science, 2023
The Baltic Basin is known for its numerous Paleozoic hydrocarbon reservoirs. There is published evidence that hydrocarbons are leaking from the seafloor, however, little is known about the hydrocarbon migration pathways from Paleozoic source and ...
Arne Warwel, Christian Hübscher, Matthias Hartge, Maike Artschwager, Wiebke Schäfer, Jonas Preine, Tobias Häcker, Victoria Strehse, Jānis Karušs, Thomas Lüdmann   +9 more
doaj   +1 more source

Seismic characterization of fluid migration and Pockmarks in the Estremadura Spur, West Iberian Margin, Portugal [PDF]

, 2017
Recently a field with more than 70 pockmarks was discovered in the NW region of the Estremadura Spur outer shelf (West Iberian margin), a trapezoidal promontory elongated in an east-west direction, between Cabo Carvoeiro and Cabo da Roca, extending until
Benazzouz, Omar, Duarte, Débora, Duarte, Henrique, Kim, Jung-Hyun, Madureira, Pedro, Magalhães, Vitor Hugo, Menezes Pinheiro, Luis, Ribeiro, Carlos, Terrinha, Pedro   +8 more
core   +1 more source