Journal ArticleDOI
Determination of Osmium Concentrations and 187Os/188Os of Crude Oils and Source Rocks by Coupling High-Pressure, High-Temperature Digestion with Sparging OsO4 into a Multicollector Inductively Coupled Plasma Mass Spectrometer
TLDR
A method that enables Os isotope measurement of crude oil with in-line Os separation and purification from the sample matrix is proposed, and (187)Os/(188)Os composition and Os concentration of NIST 8505 can serve as a matrix-matched reference material for Os analysis.Abstract:
The 187Os/188Os ratio that is based on the β–-decay of 187Re to 187Os (t1/2 = 41.6 billion years) is widely used to investigate petroleum system processes. Despite its broad applicability to studies of hydrocarbon deposits worldwide, a suitable matrix-matched reference material for Os analysis does not exist. In this study, a method that enables Os isotope measurement of crude oil with in-line Os separation and purification from the sample matrix is proposed. The method to analyze Os concentration and 187Os/187Os involves sample digestion under high pressure and high temperature using a high pressure asher (HPA-S, Anton Paar), sparging of volatile osmium tetroxide from the sample solution, and measurements using multicollector inductively coupled plasma mass spectrometry (MC-ICPMS). This methods significantly reduced the total procedural time compared to conventional Carius tube digestion followed by Os separation and purification using solvent extraction, microdistillation and N-TIMS analysis. The method...read more
Citations
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Controls on ferromanganese crust composition and reconnaissance resource potential, Ninetyeast Ridge, Indian Ocean
TL;DR: A reconnaissance survey of Fe-Mn crusts from the 5000 km long (~31°S to 10°N) Ninetyeast Ridge (NER) in the Indian Ocean showed their widespread occurrence along the ridge as well as with water depth on the ridge flanks.
Journal ArticleDOI
Re-Os dating of maltenes and asphaltenes within single samples of crude oil
Svetoslav V. Georgiev,Holly J. Stein,Holly J. Stein,Judith L. Hannah,Judith L. Hannah,R. Galimberti,M. Nali,Gang Yang,Aaron Zimmerman +8 more
TL;DR: In this paper, the authors presented an approach for Re-Os geochronology of oil based on isotopic analyses of different fractions within a single sample of crude oil, which can constrain the timing of oil formation and improve oil-source and oil-oil correlations.
Journal ArticleDOI
Atomic spectrometry update. Review of advances in the analysis of metals, chemicals and functional materials
Simon A. Carter,Andrew Fisher,Raquel Sánchez García,Bridget Gibson,J. Steven Lancaster,John Marshall,Ian Whiteside +6 more
TL;DR: A review of advances in the analysis of chemical, metals, and functional materials can be found in this paper, with a focus on single particle analysis, field flow fractionation, and ICP-MS.
Journal ArticleDOI
An extraterrestrial trigger for the mid-Ordovician ice age: Dust from the breakup of the L-chondrite parent body.
Birger Schmitz,Kenneth A. Farley,Steven Goderis,Philipp R. Heck,Philipp R. Heck,Stig M. Bergström,Samuele Boschi,Philippe Claeys,Vinciane Debaille,Andrei Dronov,Andrei Dronov,Matthias Van Ginneken,David A. T. Harper,Faisal Iqbal,Johan Friberg,Shiyong Liao,Shiyong Liao,Ellinor Martin,Matthias M. M. Meier,Matthias M. M. Meier,Bernhard Peucker-Ehrenbrink,Bastien Soens,Rainer Wieler,Fredrik Terfelt +23 more
TL;DR: In this article, the authors show that the L-chondrite parent body in the asteroid belt 466 million years ago still delivers almost a third of all meteorites falling on Earth and that the breakup took place just at the onset of a major, eustatic sea level fall previously attributed to an Ordovician ice age.
An extraterrestrial trigger for the mid-Ordovician ice age: Dust from the breakup of the L-chondrite parent body
Johan Friberg,Andrei Dronov,Steven Goderis,Shiyong Liao,Samuele Boschi,Philipp R. Heck,Bastien Soens,Birger Schmitz,Bernhard Peucker-Ehrenbrink,Philippe Claeys,Kenneth A. Farley,Rainer Wieler,F Iqbal,Matthias M. M. Meier,Fredrik Terfelt,Vinciane Debaille,Ellinor Martin,David A. T. Harper,M. van Ginneken,Stig M. Bergström +19 more
TL;DR: New extraterrestrial chromite and 3He data for Ordovician sediments show that the breakup of the L-chondrite parent body in the asteroid belt took place just at the onset of a major, eustatic sea level fall previously attributed to anOrdovician ice age.
References
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Journal ArticleDOI
Negative thermal ion mass spectrometry of osmium, rhenium, and iridium
TL;DR: In this article, a negative thermal ion mass spectrometer was used to obtain intense ion beams of negatively charged oxides of Os, Re and Ir by thermal ionization, in a conventional surface ionization mass analyzer.
Journal ArticleDOI
Osmium isotope ratio determinations by negative thermal ionization mass spectrometry
TL;DR: In this article, the isotopic abundances of tungsten with natural isotopic composition were determined by negative thermal ionization (NTI) in a double-filament ion source.
Journal ArticleDOI
Considerations in Zircon Geochronology by SIMS
Trevor Ireland,Ian S. Williams +1 more
TL;DR: Secondary ion mass spectrometry (SIMS) is a versatile technique for measuring the chemical and isotopic composition of solid materials on a scale of a few microns as mentioned in this paper.
Journal ArticleDOI
Rhenium‐osmium isotope systematics and platinum group element concentrations: Loess and the upper continental crust
TL;DR: In this article, the use of loess as a proxy for the concentration and isotopic composition of highly siderophile elements, specifically Os, in the upper continental crust was investigated.
Journal ArticleDOI
Re-Os geochronology of organic rich sediments: an evaluation of organic matter analysis methods
David Selby,Robert A. Creaser +1 more
TL;DR: In this article, the authors show that the Re-Os systematics of organic matter are altered during chemical isolation, and as such they suggest that the HF-BF3 method should not be used for Re−Os analysis of organic matters.