Results 31 to 40 of about 65,167,055 (305)
Revisiting oxygen-18 and clumped isotopes in planktic and benthic foraminifera [PDF]
Paleoceanography and Paleoclimatology, 2023 Foraminiferal isotopes are widely used to study past oceans, with different species recording conditions at different depths. Their δ18O values record both seawater oxygen-18 and temperature according to species-specific fractionation factors, while their Δ47 signatures likely depend only on temperature.
Daëron, M., Gray, W.
openaire +2 more sources
Sources of dissolved ammonia and iron in Borovnica alluvial fan groundwater
Geologija, 2014 The article deals with chemical and isotopic properties of Borovnica alluvial fan groundwater. Increased concentrations of ammonium and iron were detected in well VB-3 of the Borovnica alluvial fan pumping station. On the basis of analyses it was found
Janko Urbanc +3 more
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FAME (v1.0): a simple module to simulate the effect of planktonic foraminifer species-specific habitat on their oxygen isotopic content [PDF]
Geoscientific Model Development, 2018 The oxygen-18 to oxygen-16 ratio recorded in fossil planktonic foraminifer shells has been used for over 50 years in many geoscience applications. However, different planktonic foraminifer species generally yield distinct signals, as a consequence of ...
D. M. Roche +5 more
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Isotopic hydrograph separation in two small mountain catchments during multiple events
Cuadernos de Investigación Geográfica, 2018 Two-component isotopic hydrograph separation (IHS) was developed to determine the event- and pre-event components of a single storm event. Its application for several sucessive events requires repeated determination of isotopic signatures of end-members (
L. Holko +4 more
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GRIP Oxygen-18 of Atmospheric Oxygen
, 1999 GRIP Oxygen-18 of Atmospheric ...
A Fuchs (6980042) +3 more
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Stable Isotopic Evidence of Paleorecharge in the Northern Gulf Coastal Plain (USA)
HydrologyStable isotope abundances (δ18O and δ2H) in regional aquifers can provide important paleoclimate information. However, identifying paleoclimate signals can be complicated by cross-formational mixing and, potentially, by isotopic diffusion between ...
Estifanos Haile +2 more
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Data in Brief, 2021 Oxygen-18 and deuterium were measured in streamflow samples collected from 331 gauging stations across Canada during 2013 to 2019. This dataset includes 9206 isotopic analyses made on 4603 individual water samples, and an additional 1259 analysis repeats
J.J. Gibson +5 more
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Oxygen therapy in respiratory disorders [PDF]
, 2012 PhDOxygen therapy remains a cornerstone of medical practice and is generally regarded as being safe. However, there is a lack of clinical evidence to support the routine use of oxygen therapy, and in certain conditions, injudicious oxygen may cause harm.
Wijesinghe, Meme
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Scientific 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
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Variations of oxygen-18 in West Siberian precipitation during the last 50 years [PDF]
Atmospheric Chemistry and Physics, 2014 Global warming is associated with large increases in surface air temperature in Siberia. Here, we apply the isotope-enabled atmospheric general circulation model ECHAM5-wiso to explore the potential of water isotope measurements at a recently opened ...
M. Butzin +7 more
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