Results 51 to 60 of about 2,201 (156)

Identifying the pre‐Odra river system with hydroacoustic and seismic reflection imagery offshore Rügen Island, southern Baltic Sea

Boreas, Volume 55, Issue 3, Page 790-807, July 2026.
Understanding the course and dynamics of ancient river systems, such as the pre‐Odra, provides valuable insights into the post‐glacial evolution of landscapes and riverine processes. The northwest‐trending pre‐Odra was an important drainage system of the European mainland into the Baltic Basin during and after the Scandinavian Ice Sheet retreat ...
Maryse C. Schmidt, Elisabeth Seidel, Christian Hübscher, Benedikt Haimerl, Jonas Preine   +4 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

Revisiting the Hummeln structure, Sweden—A shallow marine Cambrian impact structure

Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1213-1242, July 2026.
Abstract Hummeln is a simple impact structure located in south‐eastern Sweden. It is approximately 1.2 km in diameter and almost completely covered by a lake. Here, we present the first detailed investigation of impactites and mapping of the 164.25 m deep drill core Hummeln‐1 with a focus on impact metamorphism and the impact process.
S. Alwmark, J. Granbom, P. Ahlberg, M. Calner, S. Richoz, K. J. Gajewska, W. R. Hyde, K. Ljung, C. Alwmark   +8 more
wiley   +1 more source

Effect of Milling and Wire Electric Discharge Machining on Recast Layer Formation and Tensile Behavior of Metallic Materials

MetalMat, Volume 3, Issue 2, June 2026.
ABSTRACT Machining of materials is an invaluable technique to give specific shapes and dimensions of desired materials. Different machining processes give rise to different surface characteristics that include not only surface roughness but also specific surface morphology, such as the recast layer.
Animesh Kumar Basak, Alokesh Pramanik, Afifah Zakiyyah Juri, Nachimuthu Radhika, T. Mohanraj   +4 more
wiley   +1 more source

High-resolution 3D seismic investigations of hydrate-bearing fluid escape chimneys in the Nyegga region of the Voring Plateau, Norway

, 2008
Hundreds of pockmarks and mounds, which seismic reflection sections show to be underlain by chimney-like structures, exist in southeast part of the Vøring plateau, Norwegian continental margin.
Ker, S., Nouze, H., Westbrook, G.K., Plaza, A., Minshull, T.A., Exley, R., Gailler, A., Jose, T.   +7 more
core   +1 more source

Radiocarbon analysis reveals the contribution of aged terrestrial carbon to sedimentary methane cycling

Limnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract Methane (CH4) production in lacustrine sediments is known to be spatially heterogeneous, varying both horizontally and vertically. Porewater methane concentrations often differ between locations within a lake and with depth within the sediment profile. The drivers of this heterogeneity are often not well understood.
Sigrid van Grinsven, Benedict V. A. Mittelbach, Fatemeh Ajallooeian, Thomas Laemmel, Martin Wessels, Negar Haghipour, Sönke Szidat, Timothy I. Eglinton, Zongguang Liu, Xiaojuan Feng, Carsten J. Schubert   +10 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  

Seismic Stratigraphy of the Peruvian Forearc Drifts from 3° to 7°S: Identification and Influence of Lower Layers of the Humboldt Current System

Paleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.
Abstract The seafloor morphology and subsurface geometry of a late Neogene contourite drift located along the Peru margin is documented for the first time using multibeam bathymetry, two‐dimensional and three‐dimensional seismic data. Along the margin several submarine canyons incise the shelf and slope.
Gérôme Calvès, Stéphane Brusset, Ysabel Calderon, Patrice Baby, Peter D. Clift   +4 more
wiley   +1 more source

Holocene subaqueous landslide dynamics in the Lake Siljan‐Orsasjön Basin, south‐central Sweden

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Subaqueous landslide areas studied by multibeam bathymetry, sub‐bottom profiling and sediment coring reveal complex stratigraphies, suggesting mass movement events starting close to the area's deglaciation and up to very recent times. Abstract The Siljan‐Orsasjön Basin in south‐central Sweden hosts two prominent lakes.
Per Möller, Dan Hammarlund, Karl Ljung, Matt O'Regan, Linda Hoff, Emelie Ståhl, Martin Jakobsson   +6 more
wiley   +1 more source

The great escape: An intra‐Messinian gas system in the eastern Mediterranean

Geophysical Research Letters, 2012
This study explores, for the first time, the response of the Mediterranean seafloor to desiccation and its affect on climate during the Messinian lowstand.
Michael Lazar, Uri Schattner, Moshe Reshef   +2 more
doaj   +1 more source