Results 191 to 200 of about 28,411 (301)

Dredging and dumping impact coastal fluxes of sediment and organic carbon. [PDF]

Nat Commun
Porz L, Chen J, Yilmaz R, Kuhlmann J, Zhang W, Schrum C.   +5 more
europepmc   +1 more source

Anthropogenically Stimulated Carbonate Dissolution in the Global Shelf Seafloor Is Potentially an Important and Fast Climate Feedback

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Carbonate mineral production and dissolution regulate atmospheric carbon dioxide (CO2) concentrations via modulation of the ocean alkalinity content. The anthropogenic rise in atmospheric CO2 reduces calcification rates and enhances calcium carbonate dissolution, which increases ocean alkalinity, counteracts acidification, and stimulates ocean
Sebastiaan J. van de Velde, Pam Vervoort, Robert O. Smith, Cliff S. Law, Kim Currie   +4 more
wiley   +1 more source

Enhanced P-wave velocity imaging by marine airgun-source seismic surveys with distributed acoustic sensing. [PDF]

Sci Rep
Fukushima S, Shinohara M, Yamada T, Hino R, Azuma R, Ito Y, Yamashita Y, Takano H.   +7 more
europepmc   +1 more source

Orbital Variability in Grazing Proportion: New Insights From Sedimentary Amino Acid δ15N Records of the Western Equatorial Pacific

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract The carbon sequestration capacity of the biological carbon pump (BCP) is determined by surface ocean carbon fixation and the transportation of fixed carbon to the ocean interior, which is closely linked to the trophic structure of planktonic ecosystem.
Chen Li, Haowen Dang, Jinlong Du, Hongliang Li, Jingjing Zhang, Zhimin Jian   +5 more
wiley   +1 more source

Submarine ash megabed fed by far-traveled, shoreline-crossing pyroclastic currents from a large explosive volcanic eruption. [PDF]

Sci Adv
Metcalfe A, Druitt T, Pank K, Kutterolf S, Preine J, Kelfoun K, Hübscher C, Nomikou P, Ronge TA, Chiyonobu S, Koukousioura O, Woodhouse A, Beethe S, Manga M, McIntosh I, Tominaga M, Berthod C, Chen H, Clark A, DeBari S, Gertisser R, Johnston R, Peccia A, Yamamoto Y, Bernard A, Fernandez Perez T, Jones CK, Joshi KB, Kletetschka G, McCanta M, Morris A, Polymenakou P, Li X, Nedelec JM, Lee HY, Papanikolaou D.   +35 more
europepmc   +1 more source

Seasonality in Marine Organic Carbon Export and Sequestration Pathways

Global Biogeochemical Cycles, Volume 40, Issue 2, February 2026.
Abstract The ocean's biological carbon pump transports organic carbon from the surface to depth via three main pathways: the gravitational sinking of particles, active transport by vertically migrating zooplankton, and mixing and advection of suspended and dissolved organic carbon.
Renjian Li, Tim DeVries, David A. Siegel, Francois W. Primeau   +3 more
wiley   +1 more source

A method for combing multi-beam bathymetric data to correct the deep sea sub-bottom profile. [PDF]

Sci Rep
Ding W, Feng X, Li N, Fang Y.
europepmc   +1 more source

Active Transport of Carbon to Demersal Fish Communities in Shelf‐Slope‐Abyssal Systems of the North Atlantic Ocean

Global Biogeochemical Cycles, Volume 40, Issue 2, February 2026.
Abstract The biological carbon pump sequesters carbon through passive fluxes of biologically derived carbon, and by active vertical movement of marine organisms. Trophic coupling between pelagic and benthic communities increases the efficiency of the biological carbon pump as less carbon is lost to remineralization.
Daniel Ottmann, Ken H. Andersen, Yixin Zhao, Colleen M. Petrik, Charles A. Stock, Clive Trueman, P. Daniël van Denderen   +6 more
wiley   +1 more source

Direct Evidence That Microplastics Are Transported to the Deep Sea by Turbidity Currents. [PDF]

Environ Sci Technol
Chen P, Kane IA, Clare MA, Soutter EL, Mienis F, Wogelius RA, Keavney E.   +6 more
europepmc   +1 more source

Diagenetic and Hydrothermal Processes Produce Heavy Molybdenum Isotope Signatures in Pelagic Sediments of the North and South Pacific

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract Molybdenum isotopes (δ98Mo) have been used for more than two decades to investigate past‐ocean redox conditions due to the distinct behavior of this element in oxic and anoxic environments. The oxic sink is generally accepted to have a near‐constant δ98Mo value of −0.7‰, a value derived primarily from the δ98Mo signatures of Fe–Mn crusts and ...
P. L. Fraga‐Ferreira, C. Siebert, M. Frank, F. Scholz   +3 more
wiley   +1 more source