Results 201 to 210 of about 1,250,539 (300)

Recognition of fossil keratose sponges in carbonates using petrographic and machine‐learning classification

open access: yesSedimentology, Volume 73, Issue 6, Page 2246-2280, October 2026.
ABSTRACT Filamentous, anastomosing spar‐filled networks in Phanerozoic carbonates have been interpreted as the mineralised remains of keratose (non‐spiculate) sponges, yet their recognition remains contested because fabrics of broadly similar appearance may arise from microbial, diagenetic or physical processes. This study combines direct fossil–modern
Jeong‐Hyun Lee   +2 more
wiley   +1 more source

A Satellite‐Based Estimate of the Contribution of Filamentary Structures to Lateral Carbon Transport in the Pacific and Atlantic Upwelling Systems

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Cross‐shelf interactions and the associated lateral transport of organic carbon remain poorly quantified and constrained by observations, despite their importance for the ocean carbon cycle. Filaments generated by instabilities of coastal currents are one pathway for this exchange, but their transport is difficult to observe at basin scales ...
Federica Benassi   +6 more
wiley   +1 more source

Open Ocean Biogeochemical Impacts of Extreme Terrestrial Precipitation

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Extreme events reshape ocean ecosystems with significant implications for nutrient and carbon cycling. Here, we demonstrate that flooding on land can be a significant driver of biogeochemical variability in the open ocean, even in relatively dry climates.
Shailja Gangrade   +9 more
wiley   +1 more source

Functional and Structural Characterization of PETase SM14 from Marine-Sponge Streptomyces sp. Active on Polyethylene Terephthalate. [PDF]

open access: yesACS Sustain Chem Eng
Carletti A   +7 more
europepmc   +1 more source

Rapid Global Oxygen Shifts and Delayed OMZ Response: Pulse and Memory of the Pacific Decadal Oscillation

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Natural decadal variability often obscures anthropogenic trends in ocean deoxygenation. Using a global observational oxygen reconstruction (1965–2022), we investigate the role of the Pacific Decadal Oscillation (PDO) in modulating decadal oxygen variability.
Zouhair Lachkar, Said Ouala
wiley   +1 more source

A Shallow‐Marine Ecosystem Before Initial Tibetan Plateau Uplift

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The uplift of the Tibetan Plateau profoundly influences global atmospheric circulation, sediment transport, and biodiversity, but its pre‐uplift marine paleoenvironment remains poorly understood. Here we report the first discovery of an in situ benthic fossil assemblage from the Puga area in central Tibet, which was deposited on a shallow ...
Ming Wang   +12 more
wiley   +1 more source

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