Results 21 to 30 of about 4,052,823 (334)
An Internally-Consistent Database for Oxygen Isotope Fractionation Between Minerals
Journal of Petrology, 2019 The knowledge of the fractionation behaviour between phases in isotopic equilibrium and its evolution with temperature is fundamental to assist the petrological interpretation of measured oxygen isotope compositions. We report a comprehensive and updated
A. Vho, P. Lanari, D. Rubatto
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Cluster Structures in Oxygen Isotopes [PDF]
Progress of Theoretical Physics, 2008 9pages ...
Furutachi, N. +4 more
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Simulating oxygen isotope ratios in tree ring cellulose using a dynamic global vegetation model [PDF]
Biogeosciences, 2016 Records of stable oxygen isotope ratios in tree rings are valuable tools to reconstruct past climatic conditions and investigate the response of trees to those conditions.
S. G. Keel +5 more
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Geosciences, 2021 This paper addresses potential application of data on stable carbon and oxygen isotope composition of carbonates for study of organic rich source rocks on the example of the Late Jurassic–Early Cretaceous Bazhenov Formation (West Siberian petroleum basin,
Anna Yurchenko +4 more
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Triple oxygen isotope evidence for limited mid-Proterozoic primary productivity
Nature, 2018 The global biosphere is commonly assumed to have been less productive before the rise of complex eukaryotic ecosystems than it is today1. However, direct evidence for this assertion is lacking.
P. Crockford +9 more
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Oxygen isotope composition of the Phanerozoic ocean and a possible solution to the dolomite problem
Proceedings of the National Academy of Sciences of the United States of America, 2018 Significance The elemental and isotopic compositions of seawater have evolved throughout Earth’s history, in tandem with major climatic, tectonic and biologic events, including the emergence and diversification of life.
U. Ryb, J. Eiler
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The nitrogen isotope effect of benthic remineralization-nitrification-denitrification coupling in an estuarine environment [PDF]
, 2011 The nitrogen (N) stable isotopic composition of pore water nitrate and total dissolved N (TDN) was measured in sediments of the St. Lawrence Estuary and the Gulf of St. Lawrence.
Lehmann, M. F. +6 more
core +2 more sources
Subbarrier interactions of the oxygen isotopes [PDF]
Physical Review C, 1987 We derive a unified description of the low-energy elastic, inelastic, neutron transfer, and fusion cross sections of systems involving two stable oxygen isotopes. Coupled channels equations with an incoming wave boundary condition are employed, as is the no-recoil approximation; the adiabatic approximation, which violates unitarity, is avoided.
Pönisch, V., Koonin, S. E.
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, 2017 A number of distinct methodologies are available for determining the oxygen isotope composition of minerals and rocks, these include laser-assisted fluorination, secondary ion mass spectrometry (SIMS) and UV laser ablation.
R. Greenwood +3 more
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Oxygen Isotope Profiles in Firn Cores from Mizuho Plateau, Antarctica
Antarctic Record, 1977 Oxygen isotope, gross β-radioactivity and stratigraphic determinations were done on firn cores from Mizuho Plateau, Antarctica. Factors controlling oxygen isotope variations in firn were discussed. From the results of gross β-activity measurements, it is
Kikuo KATO, Okitsugu WATANABE
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