Results 21 to 30 of about 155,621 (344)

Author Correction: Constraining the rise of oxygen with oxygen isotopes

Nature 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, P. Sansjofre, P. Philippot, P. Cartigny, C. Thomazo, S. V. Lalonde   +5 more
doaj   +1 more source

The development of statistical downscaling methods for assessing the effects of climate change on the precipitation isotopes concentration

Journal of Water and Climate Change, 2021
In recent years, stable isotopes of the water molecule (oxygen-18 and deuterium) have become a useful tool for tracking the water cycle. The concentration of these tracers changes with variations of water molecules within the water cycle.
Sara Nazif, Maryam Mosaffa, Youssef Khalaj Amirhosseini   +2 more
doaj   +1 more source

Carbon and oxygen isotope variation and its implication for marine sequence: A case study of Ordovician in Tarim Basin

Petroleum Research, 2017
Carbon and oxygen isotopes of marine carbonate rocks or fossil shells could indicate global sea-level relative change. Generally, heavier carbon isotopes or lighter oxygen isotopes reflected rise of global sea-level relative changes, and vice versa.
Zongju Zhao, Jianguo Wang, Peixi Wang
doaj   +1 more source

Seasonal Cyclicity in Trace Elements and Stable Isotopes of Modern Horse Enamel. [PDF]

PLoS ONE, 2016
The study of stable isotopes in fossil bioapatite has yielded useful results and has shown that bioapatites are able to faithfully record paleo-environmental and paleo-climatic parameters from archeological to geological timescales.
Niels J de Winter, Christophe Snoeck, Philippe Claeys   +2 more
doaj   +1 more source

Isotopic Fingerprinting: A Promising Tool for Coffee Authenticity Checks

Proceedings, 2023
Almost every physical or chemical process in nature favors certain light stable isotopes over others, and thereby leaves an isotopic “fingerprint” on the substances involved.
Johannes Wintel, Corina Knipper, Mila Spross, Ronny Friedrich, Steffen Schwarz   +4 more
doaj   +1 more source

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

Frontiers 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, Gilad Antler, Gilad Antler, André Pellerin   +3 more
doaj   +1 more source

Radii and binding energies in oxygen isotopes: a puzzle for nuclear forces [PDF]

, 2016
We present a systematic study of both nuclear radii and binding energies in (even) oxygen isotopes from the valley of stability to the neutron drip line.
Barbieri, C., Hergert, H., Holt, J. D., Lapoux, V., Somà, V., Stroberg, S. R.   +5 more
core   +4 more sources

Low-lying continuum states of drip-line Oxygen isotopes [PDF]

, 2015
Low-lying continuum states of exotic oxygen isotopes are studied, by introducing the Continuum-Coupled Shell Model (CCSM) characterized by an infinite wall placed very far and by an interaction for continuum coupling constructed in a close relation to ...
Fujimoto, Rintaro, Otsuka, Takaharu, Tsukiyama, Koshiroh   +2 more
core   +1 more source

Hydrochemical and stable isotopes (δ2H and δ18O) changes of groundwater from a spring induced by local earthquakes, Northwest China

Frontiers in Earth Science, 2023
It has been well reported that earthquakes can cause changes in groundwater chemistry and isotopes, and much of those changes were occurred in wells or hot springs; however, changes in cold spring caused by local small earthquakes have received less ...
Yang Xiang, Yang Xiang, Suping Peng, Suping Peng   +3 more
doaj   +1 more source

Towards a global interpretation of dual nitrate isotopes in surface waters [PDF]

, 2019
Modern anthropogenic activities have significantly increased nitrate (NO3-) concentrations in surface waters. Stable isotopes (delta N-15 and delta O-18) in NO3- offer a tool to deconvolute some of the human-made changes in the nitrogen cycle.
Boeckx, Pascal, Gooddy, DC, Venkiteswaran, JJ   +2 more
core   +2 more sources