Results 261 to 270 of about 32,656 (310)

Localized and Transient Oxygenation of Shallow Oceans of Southwestern Laurentia at the Ediacaran–Cambrian Boundary

open access: yesGeobiology, Volume 24, Issue 1, January/February 2026.
ABSTRACT The Ediacaran–Cambrian boundary, which precedes one of the most significant biotic diversification events in Earth's history, is associated with a global negative carbon isotope excursion termed the BAsal Cambrian carbon isotope Excursion (BACE).
Watsawan Chanchai   +6 more
wiley   +1 more source

DFT-guided photostable chitosan-derived carbon quantum dots as colloidal antibacterial and bioimaging agents. [PDF]

open access: yesSci Rep
Gumathannavar R   +6 more
europepmc   +1 more source

Spatiotemporal Diversification of Forest Understorey Species Reveals the Existence of Multiple Pleistocene Forest Refugia in Central Europe

open access: yesMolecular Ecology, Volume 35, Issue 1, January 2026.
ABSTRACT During Pleistocene cold stages, European temperate forests were not only restricted to refugia in the southern European peninsulas. Rather, there is increasing evidence for the survival of trees also in isolated patches further north, termed ‘northern refugia’.
Camille Voisin   +8 more
wiley   +1 more source

Aligned hydrothermal fluid‐flow pathways in Middle Permian near‐shore marine sediments beneath a basaltic lava flow

open access: yesSedimentology, Volume 73, Issue 1, Page 83-102, January 2026.
ABSTRACT Tubular and curviplanar structures, outlined by the occurrence of haematite/goethite, chlorite, quartz and albite, are developed in the Middle Permian Broughton Formation in the southern Sydney Basin, New South Wales, Australia. These structures are interpreted as fluid‐flow pathways resulting from the ejection of heated pore fluids as a thick
Paul F. Carr   +5 more
wiley   +1 more source

Fluid inclusions: tiny windows into global paleo-environments. [PDF]

open access: yesCommun Earth Environ
Bekaert DV, Avice G, Marty B.
europepmc   +1 more source

Analysis of Temperature and Displacement Fields in the Freeze Construction of Overlapping Cross‐Passages Within Water‐Rich Sand Layers

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
In the construction of an F‐type cross‐passage in an overlapping‐type shield tunnel using the artificial ground freezing method, the development of the distal frozen wall is difficult to control, and ground deformation is influenced by the superimposed disturbance of successive construction steps. Existing studies are insufficient to fully characterize
Jinlei Li   +4 more
wiley   +1 more source

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