Search Results - "Belshaw, N.S."

Mass fractionation processes of transition metal isotopes by Zhu, X.K., Guo, Y., Williams, R.J.P., O’Nions, R.K., Matthews, A., Belshaw, N.S., Canters, G.W., de Waal, E.C., Weser, U., Burgess, B.K., Salvato, B.

“…Recent advances in mass spectrometry make it possible to utilise isotope variations of transition metals to address some important issues in solar system and…”
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Determination of natural Cu-isotope variation by plasma-source mass spectrometry: implications for use as geochemical tracers by Zhu, X.K., O'Nions, R.K., Guo, Y., Belshaw, N.S., Rickard, D.

“…Techniques for the high precision measurement of 65Cu/ 63Cu ratios by multiple-collector plasma-source mass spectrometry has been developed. Two approaches,…”
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High precision measurement of iron isotopes by plasma source mass spectrometry by Belshaw, N.S, Zhu, X.K, Guo, Y, O’Nions, R.K

“…Multiple-collector inductively coupled plasma mass spectrometry has been used for the precise measurement of natural variations in the isotopic composition of…”
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The Hf isotope composition of global seawater and the evolution of Hf isotopes in the deep Pacific Ocean from Fe–Mn crusts by David, K, Frank, M, O'Nions, R.K, Belshaw, N.S, Arden, J.W

“…This paper presents a revised chemical purification method of Hf for the measurement of Hf isotope ratios of Fe–Mn crusts on a new generation of double…”
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High precision measurement of titanium isotope ratios by plasma source mass spectrometry by Zhu, X.K., Makishima, A., Guo, Y., Belshaw, N.S., O’Nions, R.K.

“…A method using multiple-collector inductively coupled plasma source mass spectrometry for the precise measurement of Ti isotope composition in natural…”
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Lewisian crustal history from in situ SIMS mineral chronometry and related metamorphic textures by Zhu, Z.K., O'Nions, R.K., Belshaw, N.S., Gibb, A.J.

“…A combination of detailed petrography and in situ SIMS 207 Pb 206 Pb micro-chronometry of monazite has been carried out on samples from the Lewisian high-grade…”
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Global distribution of beryllium isotopes in deep ocean water as derived from FeMn crusts by von Blanckenburg, F., O'Nions, R.K., Belshaw, N.S., Gibb, A., Hein, J.R.

“…The direct measurement of the ratio of cosmogenic 10Be ( T 1 2 = 1.5 Ma ) to stable terrigenously sourced 9Be in deep seawater or marine deposits can be used…”
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Significance of in situ SIMS chronometry of zoned monazite from the Lewisian granulites, northwest Scotland by Zhu, X.K., O'Nions, R.K., Belshaw, N.S., Gibb, A.J.

“…In situ studies of Lewisian metamorphic monazites show them to be strongly zones in Th content, Th U ratio and 207 Pb 206 Pb age. Traverses across…”
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Ca isotope systematics of carbonatites: Insights into carbonatite source and evolution by Sun, J., Zhu, X.-K., Belshaw, N.S., Chen, W., Doroshkevich, A.G., Luo, W.-J., Song, W.-L., Chen, B.-B., Cheng, Z.-G., Li, Z.-H, Wang, Y., Kynicky, J., Henderson, G.M.

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A new variable dispersion double-focusing plasma mass spectrometer with performance illustrated for Pb isotopes by Belshaw, N.S, Freedman, P.A, O’Nions, R.K, Frank, M, Guo, Y

“…A new generation multiple collector plasma source mass spectrometer (PSMS) produced by Nu Instruments Ltd is evaluated. The instrument has a double-focusing…”
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Corrigendum to “The Hf isotope composition of global seawater and the evolution of Hf isotopes in the deep Pacific Ocean from Fe–Mn crusts” [Chem. Geol. 178 (2001) 23–42] by David, K., Frank, M., O'Nions, R.K., Belshaw, N.S., Arden, J.W., Hein, J.R.

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Separation of 9Be and cosmogenic 10Be from environmental materials and SIMS isotope dilution analysis by von Blanckenburg, F., Belshaw, N.S., O'Nions, R.K.

“…A recently developed high-resolution secondary ion mass spectrometer (SIMS) allows direct determination of the ratio of cosmogenic 10Be to stable 9Be. In this…”
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A SIMS method for 10Be/ 9Be ratio measurement in environmental materials by Belshaw, N.S., O'Nions, R.K., von Blanckenburg, F.

“…A new SIMS based technique for measurement of 10Be/ 9Be ratios in a variety of environmental materials is reported. Be samples are chemically preconcentrated…”
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