Earth-Science Reviews

Journal: Earth-Science Reviews

Abbreviation

Earth-Sci. Rev.

Publisher

Elsevier

ISSN

0012-8252
1872-6828

Show all metadata

Search Results

Publications 1 - 10 of 49

Corrigendum to “ Atmospheric aging effects on aerosol ice nucleation” [Earth-Science Reviews, 269 (2025), 105176]
Huang, Ziye; Hu, Wei; Chen, Jie; et al. (2025)
Earth-Science Reviews
Corrections to the captions of Figs. 5 and 6 were missed to be provided due to which the production team has replaced the figures.
Sources and characteristics of acoustic emissions from mechanically stressed geologic granular media
Michlmayr, Gernot; Cohen, Denis; Or, Dani (2012)
Earth-Science Reviews
Environmental controls on very high δ238U values in reducing sediments: Implications for Neoproterozoic seawater records
Clarkson, Matthew O.; Sweere, Tim; Chiu, Chun Fung; et al. (2023)
Earth-Science Reviews
Uranium isotopes (δ238U) are a widely applied tool for tracing global changes in oceanic anoxia. Interpretation of seawater values and trends, often reconstructed from carbonates, requires knowledge of the U isotope fractionation that occurs during U reduction, typically favouring the heavier 238U isotope relative to 235U. Yet the environmental controls on the expression of isotope enrichment during reduction (Δ238Uanox) are poorly understood, leading to large uncertainties in interpretation of seawater records. This is particularly limiting for the Neoproterozoic, where exceptionally low inferred seawater δ238U requires very high Δ238Uanox, which are rarely seen in modern sediments. Here we present a compilation of authigenic δ238U from modern and recent (Mediterranean sapropel) reducing settings to better constrain the first order controls on the expression of large U isotope enrichments. Accompanying geochemical data help identify the dominant mechanisms responsible for high Δ238Uanox, suggesting they are an expression of limited sedimentary U reduction in weakly euxinic settings or temporally dynamic reducing environments. Such environments are characterised by lower to intermediate organic carbon and uranium accumulation rates (OCAR, UAR) where U reduction appears dominated by non-diffusion-limited processes at the sediment-water interface, on sinking organic matter or within the water column itself. Conversely, under strongly euxinic conditions with higher OCAR and UAR, U reduction occurs mainly under a diffusion-limited regime in the sediment. These findings suggest that the very low seawater δ238U of the Neoproterozoic may be a result of progressive ocean oxygenation and temporally dynamic expansions of anoxia, or the development of weakly euxinic conditions, rather than more widespread or ‘intense’ anoxia as previously inferred. Such a revised interpretation is more consistent with other geochemical and paleontological records from this time and is critical for understanding the relationship of anoxia to the rise of complex life.
Small-scale ductile shear zones: Neither extending, nor thickening, nor narrowing
Pennacchioni, Giorgio; Mancktelow, Neil (2018)
Earth-Science Reviews
Microbially catalyzed dolomite formation: From near-surface to burial
Petrash, Daniel A.; Bialik, Or M.; Bontognali, Tomaso R.R.; et al. (2017)
Earth-Science Reviews
Permafrost and climate in Europe
Harris, Charles; Arenson, Lukas U.; Christiansen, Hanne H.; et al. (2009)
Earth-Science Reviews
Mountain building processes during continent-continent collision in the Uralides
Brown, D.; Juhlin, C.; Ayala, C.; et al. (2008)
Earth-Science Reviews
Neotectonics and intraplate continental topography of the northern Alpine Foreland
Environmental Tectonics (ENTEC) Working Group; Cloetingh, S.; Cornu, T.; et al. (2006)
Earth-Science Reviews
Dynamics of exhumation and deformation of HP-UHP orogens in double subduction-collision systems: Numerical modeling and implications for the Western Dabie Orogen
Dai, Liming; Li, Sanzhong; Li, Zhong-Hai; et al. (2018)
Earth-Science Reviews
Dynamics and evolution of the deep mantle resulting from thermal, chemical, phase and melting effects
Tackley, Paul J. (2012)
Earth-Science Reviews

Publications 1 - 10 of 49

Journal: Earth-Science Reviews

Abbreviation

Publisher

Journal Volumes

ISSN

Description

Filters

Search Results