Results 51 to 60 of about 1,096 (152)

Low‐Frequency Ocean Waves Triggered by Tropical Cyclones via Seafloor Distributed Acoustic Sensing

Journal of Geophysical Research: Oceans, Volume 131, Issue 3, March 2026.
Abstract Propagation of low‐frequency ocean waves, including infragravity (IG) and internal waves, affect ocean dynamics and energy transfer within marine environments. IG waves are long‐period ocean surface waves that can propagate long distances across the ocean and impact the coastlines and deep ocean, while internal waves are buoyancy‐driven ...
Hou‐Sheng Cheng, Takashi Tonegawa, Emmy T. Chang, Eiichiro Araki   +3 more
wiley   +1 more source

Characterization of metabolically active bacterial populations in subseafloor Nankai Trough sediments above, within and below the sulfate-methane transition zone

Frontiers in Microbiology, 2012
A remarkable number of microbial cells have been enumerated within subseafloor sediments, suggesting a biological impact on geochemical processes in the subseafloor habitat.
Heath J. Mills, Brandi eKiel Reese, Brandi eKiel Reese, Alicia eShepard, Scot E. Dowd, Natascha eRiedinger, Yuki eMorono, Fumio eInagaki   +7 more
doaj   +1 more source

The Guaymas Basin Subseafloor Sedimentary Archaeome Reflects Complex Environmental Histories

iScience, 2020
Summary: We explore archaeal distributions in sedimentary subseafloor habitats of Guaymas Basin and the adjacent Sonora Margin, located in the Gulf of California, México.
Gustavo A. Ramírez, Luke J. McKay, Matthew W. Fields, Andrew Buckley, Carlos Mortera, Christian Hensen, Ana Christina Ravelo, Andreas P. Teske   +7 more
doaj   +1 more source

Pockmarks, Mud Volcanoes and Hydrocarbon Seeps in the Northern Gulf of Mexico: Trends and Controls on Widespread Fluid and Gas Venting

Basin Research, Volume 38, Issue 2, March/April 2026.
Basin‐scale dataset reveals widespread hydrocarbon venting at the seafloor in the northern Gulf of Mexico. Hydrocarbon release at the seafloor is related to the occurrence of the underlying Louann salt and the gas hydrate stability zone. ABSTRACT The release of hydrocarbons, pore water and fluidized sediments impacts seafloor morphology, marine ...
Muhedeen A. Lawal, Ann E. Cook, Alexey Portnov, Aditya Kumar   +3 more
wiley   +1 more source

Atribacteria from the Subseafloor Sedimentary Biosphere Disperse to the Hydrosphere through Submarine Mud Volcanoes

Frontiers in Microbiology, 2017
Submarine mud volcanoes (SMVs) are formed by muddy sediments and breccias extruded to the seafloor from a source in the deep subseafloor and are characterized by the discharge of methane and other hydrocarbon gasses and deep-sourced fluids into the ...
Tatsuhiko Hoshino, Tatsuhiko Hoshino, Tomohiro Toki, Akira Ijiri, Akira Ijiri, Yuki Morono, Yuki Morono, Hideaki Machiyama, Juichiro Ashi, Kei Okamura, Fumio Inagaki, Fumio Inagaki, Fumio Inagaki   +12 more
doaj   +1 more source

Temperature Controls on Carbon‐Sulfur Diagenesis in Deep Hydrothermal Subseafloor Sediments

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Carbon mobilization and sulfur transformation play a significant role in deep carbon and sulfur cycling. However, sulfur biogeochemistry and its coupling with carbon and iron cycling remain poorly constrained in hydrothermal sediments. We investigated the effect of temperature on carbon‐sulfur‐iron diagenesis in subsurface sediments (≤370 m ...
Bing‐Zheng Wu, Jiarui Liu, Guang‐Chao Zhuang, Xiting Liu, Zhen Zhou, Andreas P. Teske, Samantha B. Joye   +6 more
wiley   +1 more source

Structure and Spatial Heterogeneity of Chemosynthesis‐Based Deep‐Sea Archaeal and Bacterial Communities in Western South Atlantic

Ecology and Evolution, Volume 16, Issue 2, February 2026.
We report an extensive investigation of prokaryotic communities from a methane cold‐seep area in the Western South Atlantic Ocean (Southern Brazil) employing a broad sample set, including three distinct geographic areas (A, C and E) across a depth gradient (up to 18 m below the seafloor) related to the sulfate–methane transition zone (SMTZ).
Taiz L. Lopes Simão, Karine A. Felix Ribeiro, Raquel Dias, Adolpho H. Augustin, Luiz F. Rodrigues, Dennis J. Miller, Adriano R. Viana, Eric W. Triplett, João M. M. Ketzer, Adriana Giongo, Eduardo Eizirik, Renata Medina‐Silva   +11 more
wiley   +1 more source

Dynamics of Iron‐Bound Organic Carbon Across Different Development Stages of Marine Cold Seeps

Global Biogeochemical Cycles, Volume 40, Issue 1, January 2026.
Abstract Marine cold seeps, where subsurface methane‐rich fluids discharge at seafloors, are “oases of life” that sustain highly active organic carbon (OC) and iron (Fe) cycling along the global continental margins. However, the interactions between Fe and OC and their impacts on the development and long‐term carbon preservation of cold seep ecosystems
Wenqi Ye, Yunru Chen, Chenxi Yang, Weikang Sui, Zian Tong, Xinyu Gu, Yanwei Wang, Zheng Xiong, Ningyuan Lu, Chuanhui Sun, Yang Wu, Xi Xiao, Lizhi Zhang, Qianyong Liang, Longhui Deng, Fengping Wang   +15 more
wiley   +1 more source

IODP Expedition 321T: Cementing Operations at Holes U1301A and U1301B, Eastern Flank of the Juan de Fuca Ridge [PDF]

Scientific Drilling, 2010
IODP Expedition 301 (Fisher et al., 2005a) was part of a series of expeditions and experiments to quantify hydrogeologic, lithologic, biogeochemical, and microbiological properties, processes, and linkages on the eastern flank of the Juan de Fuca Ridge ...
Andrew T. Fisher, IODP Expedition 321T Scientific Party   +1 more
doaj   +1 more source

Microbial community assembly and evolution in subseafloor sediment [PDF]

Proceedings of the National Academy of Sciences, 2017
Significance Our study shows that deep subseafloor sediments are populated by descendants of rare members of surface sediment microbial communities that become predominant during burial over thousands of years. We provide estimates of mutation rates and strength of purifying selection in a set of taxonomically diverse microbial populations in
Starnawski, Piotr, Bataillon, Thomas, Ettema, Thijs J. G., Jochum, Lara M., Schreiber, Lars, Chen, Xihan, Lever, Mark A., Jørgensen, Bo B., Kjeldsen, Kasper U., Polz, Martin F, Schramm, Andreas   +10 more
openaire   +7 more sources