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Oxygen Isotope Zoning in Garnet
Science, 1991Oxygen isotope zoning was examined within garnet with the use of the stable isotope laser probe. Four metamorphic garnets from the regional metamorphic terrane in Vermont and the skarn deposit at Carr Fork, Utah, were examined and were found to be concentrically zoned in δ 18 O values. The largest variations in δ
C P, Chamberlain, M E, Conrad
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Isotope ratios in photosynthetic oxygen
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1979Axenic suspensions of the fresh water green alga Ankistrodesmus braunii were illuminated under aerobic conditions. The released gas mixture was introduced into the ion source of an isotope mass spectrometer, which recorded the 18O/16O ratio.
H, Metzner, K, Fischer, O, Bazlen
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Industrial separation of oxygen isotopes by oxygen distillation
Journal of Labelled Compounds and Radiopharmaceuticals, 201918O‐labeled water (Water‐18O) is a widely used starting material of 18F‐labeled diagnostic agents in positron emission tomography (PET). Conventionally, Water‐18O has been separated from other stable oxygen isotope species (16O, 17O) by water distillation or nitric oxide distillation. However, conventional methods are costly and may have safety issues.
Takehiro Igarashi +2 more
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International Journal of Modern Physics E, 2017
The properties of the oxygen isotopes provide diverse examples of progress made in experiments and theory. This chain of isotopes has been studied from beyond the proton drip line in [Formula: see text]O to beyond the neutron drip line in [Formula: see text]O.
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The properties of the oxygen isotopes provide diverse examples of progress made in experiments and theory. This chain of isotopes has been studied from beyond the proton drip line in [Formula: see text]O to beyond the neutron drip line in [Formula: see text]O.
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Geochimica et Cosmochimica Acta, 1986
Abstract Oxygen isotopic fractionation among the major mineral phases of Shergotty corresponds to a temperature of last equilibration of about 1100°C. There are no large departures from equilibrium due to metamorphism, shock, or retrograde exchange.
Robert N. Clayton, Toshiko K. Mayeda
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Abstract Oxygen isotopic fractionation among the major mineral phases of Shergotty corresponds to a temperature of last equilibration of about 1100°C. There are no large departures from equilibrium due to metamorphism, shock, or retrograde exchange.
Robert N. Clayton, Toshiko K. Mayeda
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Isotopic analysis of oxygen in water
The International Journal of Applied Radiation and Isotopes, 1958Abstract A semimicro method for the oxidation of water to oxygen for mass spectrometry has been developed. Water samples of 25–100 mg are oxidized by bromine in alkaline solution in presence of cobaltic oxide. Paзpaбoтaн пoлyмикpoмeтoдoкиcл eния вoды дo киcлopoдa для мacc-cпeктpoмeтpии Пpoбы вoды в 25–100 мг oкиcляютcя щeлo чным pacтвopoм бpoмa в ...
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Nature, 1929
I HAVE recently been studying the vibrational energy functions of molecules, in connexion with a recalculation of heats of dissociation, and have noticed that the equation given by Dieke and Babcock (Proc. Nat. Acad. Sci., 13, 670; 1927) for the upper level of the atmospheric bands of oxygen has an unusually large coefficient for the n3 term.
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I HAVE recently been studying the vibrational energy functions of molecules, in connexion with a recalculation of heats of dissociation, and have noticed that the equation given by Dieke and Babcock (Proc. Nat. Acad. Sci., 13, 670; 1927) for the upper level of the atmospheric bands of oxygen has an unusually large coefficient for the n3 term.
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Reviews in Mineralogy and Geochemistry, 2003
Isotopic and trace element analysis of zircons can provide reliable and robust estimates of age, compositions of coexisting minerals and melts, and constraints on the genesis and protoliths of host rocks. Recent technological developments facilitate analysis of oxygen isotope ratios in zircon with high accuracy and precision by laser heating/gas-source
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Isotopic and trace element analysis of zircons can provide reliable and robust estimates of age, compositions of coexisting minerals and melts, and constraints on the genesis and protoliths of host rocks. Recent technological developments facilitate analysis of oxygen isotope ratios in zircon with high accuracy and precision by laser heating/gas-source
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Annual Review of Earth and Planetary Sciences, 1993
Among all the c he mic al e le men ts, ox ygen has a co mbin ation of pro pe rtie s tha t ma kes it u nique ly im por ta nt in cosmoc hem is tr y. I t is a n abu nda nt e leme nt , a nd is t he pr inc ipa l co nst it ue nt o f most m inera ls a nd roc ks.
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Among all the c he mic al e le men ts, ox ygen has a co mbin ation of pro pe rtie s tha t ma kes it u nique ly im por ta nt in cosmoc hem is tr y. I t is a n abu nda nt e leme nt , a nd is t he pr inc ipa l co nst it ue nt o f most m inera ls a nd roc ks.
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