Results 1 to 10 of about 2,285,212 (283)

Constraining the rise of oxygen with oxygen isotopes [PDF]

open access: yesNature Communications, 2019
The loss of anomalous sulfur isotope compositions from sedimentary rocks has been considered a symptom of permanent atmospheric oxygenation. Here the authors show sulfur and oxygen isotope evidence from 
B. A. Killingsworth   +5 more
doaj   +8 more sources

Abrupt Heinrich Stadial 1 cooling missing in Greenland oxygen isotopes. [PDF]

open access: yesSci Adv, 2021
Glacial wintertime sea ice mutes abrupt Heinrich Stadial 1 cooling in Greenland oxygen isotope records. Abrupt climate changes during the last deglaciation have been well preserved in proxy records across the globe.
He C   +7 more
europepmc   +2 more sources

Evaluation of oxygen isotopes and trace elements in planktonic foraminifera from the Mediterranean Sea as recorders of seawater oxygen isotopes and salinity [PDF]

open access: yesClimate of the Past, 2020
The Mediterranean Sea is characterized by a relatively strong west to east salinity gradient, which makes it an area suitable for testing the effect of salinity on foraminiferal shell geochemistry.
L. K. Dämmer   +5 more
doaj   +2 more sources

Paradoxically lowered oxygen isotopes of hydrothermally altered minerals by an evolved magmatic water [PDF]

open access: yesScientific Reports, 2022
It has been well known that the influxing meteoric water can hydrothermally lower oxygen and hydrogen isotopes of rocks and/or minerals during continental magmatic or metamorphic processes in certain appropriate cases.
Chun-Sheng Wei, Zi-Fu Zhao
doaj   +2 more sources

Quenching of spectroscopic factors for proton removal in oxygen isotopes [PDF]

open access: green, 2011
We present microscopic coupled-cluster calculations of the spectroscopic factors for proton removal from the closed-shell oxygen isotopes $^{14,16,22,24,28}$O with the chiral nucleon-nucleon interaction at next-to-next-to-next-to-leading order.
Brown, B. Alex   +4 more
core   +2 more sources

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

open access: yesPhysical Review Letters, 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.   +5 more
core   +6 more sources

Anthropogenic Effects on Hydrogen and Oxygen Isotopes of River Water in Cities. [PDF]

open access: yesInt J Environ Res Public Health, 2019
Stable hydrogen and oxygen isotopes are important indicators for studying water cycles. The isotopes are not only affected by climate, but are also disturbed by human activities.
Li X   +7 more
europepmc   +2 more sources

Application of Nitrogen and Oxygen Isotopes for Source and Fate Identification of Nitrate Pollution in Surface Water: A Review

open access: yesApplied Sciences, 2018
Nitrate pollution in surface water has become an environmental problem of global concern. The effective way for controlling the nitrate pollution of surface water is to identify the pollution source and reduce the input of nitrate.
Yan Zhang, Peng Shi, Jinxi Song, Qi Li
doaj   +2 more sources

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

Cluster structures in Oxygen isotopes [PDF]

open access: yesProgress of Theoretical Physics, 2007
Cluster structure of 16O,18O and 20O is investigated by the antisymmettrized molecular dynamics (AMD) plus generator coordinate method (GCM). We have found the K^{\pi}=0$_2^+$ and 0$_1^-$ rotational bands of 18O that have the prominent 14C+\alpha cluster
Doté, A.   +4 more
core   +2 more sources

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