Results 11 to 20 of about 24,904 (238)

Author Correction: Constraining the rise of oxygen with oxygen isotopes [PDF]

open access: yesNature Communications, 2020
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
B. A. Killingsworth   +5 more
doaj   +2 more sources

A Critical Look at the Combined Use of Sulfur and Oxygen Isotopes to Study Microbial Metabolisms in Methane-Rich Environments [PDF]

open access: yesFrontiers in Microbiology, 2018
Separating the contributions of anaerobic oxidation of methane and organoclastic sulfate reduction in the overall sedimentary sulfur cycle of marine sediments has benefited from advances in isotope biogeochemistry.
Gilad Antler   +3 more
doaj   +2 more sources

Evolution of ancient hydrothermal fluids theoretically inverted with initial oxygen isotopes of water [PDF]

open access: yesScientific Reports
While great successes have been achieved during past decades, oxygen isotopic endmembers of water were implicitly adopted by previous studies for quantifying fossil hydrothermal systems worldwide.
Chun-Sheng Wei, Zi-Fu Zhao
doaj   +2 more sources

Investigating stable oxygen and carbon isotopic variability in speleothem records over the last millennium using multiple isotope-enabled climate models [PDF]

open access: yesClimate of the Past, 2022
The incorporation of water isotopologues into the hydrology of general circulation models (GCMs) facilitates the comparison between modeled and measured proxy data in paleoclimate archives.
J. C. Bühler   +12 more
doaj   +1 more source

Isotopic and magnetic proxies are good indicators of millennial-scale variability of the East Asian monsoon

open access: yesCommunications Earth & Environment, 2023
Past East Asian Monsoon variability has been reconstructed using oxygen isotopes of cave speleothems as well as proxy indicators from Chinese loess sequences.
Louise Fuchs   +6 more
doaj   +1 more source

Do oxygen isotope values in collagen reflect the ecology and physiology of neotropical mammals?

open access: yesFrontiers in Ecology and Evolution, 2015
Stable isotope data provide insight into the foraging ecology of animals. Traditionally, carbon and nitrogen isotope values have been used to infer dietary and habitat preferences.
Brooke eCrowley   +5 more
doaj   +1 more source

Annual variation in hydrogen and oxygen isotopes of river water in the Huashan watershed and sampling scheme optimization

open access: yesShui kexue jinzhan, 2023
The investigation on river water isotope characteristics of small watersheds and the sampling scheme are of great significance for a better understanding of the precipitation-runoff relationship, and for the establishment of an isotope hydrological ...
Aimin LIAO   +6 more
doaj   +1 more source

Sedimentary pyrite sulfur isotopes track the local dynamics of the Peruvian oxygen minimum zone

open access: yesNature Communications, 2021
To explore the importance of local vs. global sulfur-cycle controls on variations in pyrite sulfur isotopes, the authors couple carbon-nitrogen-sulfur concentrations and stable isotopes of sediments from the Peruvian oxygen minimum zone, identifying a ...
Virgil Pasquier   +2 more
doaj   +1 more source

Cluster Structures in Oxygen Isotopes [PDF]

open access: yesProgress of Theoretical Physics, 2008
9pages ...
Furutachi, N.   +4 more
openaire   +2 more sources

Adsorption separation of heavier isotope gases in subnanometer carbon pores

open access: yesNature Communications, 2021
Separation of isotopes of heavier gases than hydrogen or helium is essential for biomedical applications, but current methods are very energy and time consuming.
Sanjeev Kumar Ujjain   +15 more
doaj   +1 more source

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