Re–Os dating of maltenes and asphaltenes within single samples of crude oil

Georgiev, Svetoslav; Stein, Holly J.; Hannah, Judith L.; Galimberti, R.; Nali, M.; Yang, Guanghai; Zimmerman, A.

doi:10.1016/j.gca.2016.01.016

Cited by 45 publications

(90 citation statements)

References 48 publications

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“…, Georgiev et al . ). These studies have demonstrated that the Re‐Os isotope systematics of petroleum (crude oil, bitumen) allow the direct dating of the processes related to petroleum generation and evolution, and also provide insights into the source of the petroleum.…”

Section: Total Procedural Blanks Of Rhenium and Osmium And 187os/188mentioning

confidence: 97%

“…, , Georgiev et al . ). These studies have discussed the possible influences of geological processes on the Re‐Os systematics of petroleum and its application to petroleum systems, for example the timing of oil generation, the precipitation of asphaltene and the effect of contact with basinal fluids.…”

Section: Total Procedural Blanks Of Rhenium and Osmium And 187os/188mentioning

confidence: 97%

“…, Sen and Peucker‐Ehrenbrink , Georgiev et al . ). In general, current petroleum Re‐Os measurement procedures adopt similar chemical purification procedures among different laboratories with the main differences being the digestion (i.e., choice of vessels and acids) and mass spectrometry (N‐TIMS and ICP‐MS) methods.…”

Section: Total Procedural Blanks Of Rhenium and Osmium And 187os/188mentioning

confidence: 97%

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A Matrix‐Matched Reference Material for Validating Petroleum Re‐Os Measurements

Liu

Selby

2017

Geostandard Geoanalytic Res

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This study presents two matrix‐matched reference materials developed for petroleum Re‐Os measurements. We present the Re and Os mass fractions and 187Re/188Os and 187Os/188Os values (ratio of the number of atoms of the isotopes) for repeatedly measured aliquots (ca. 120–150 mg test portions) of the NIST Research Material 8505 (RM 8505) crude oil, and its asphaltene and maltene fractions, and ~ 90 g of homogeneous asphaltene powder isolated from this oil. Measurements were performed using the Carius tube‐isotope dilution negative‐thermal ionisation mass spectrometry methodology. The RM 8505 crude oil contains 1.98 ± 0.07 ng g−1 Re and 25.0 ± 1.1 pg g−1 Os, with Re‐Os isotope amount ratios of 452 ± 6 for 187Re/188Os and 1.51 ± 0.01 for 187Os/188Os (n = 20, 95% conf.). The homogeneous asphaltene sample contains 16.52 ± 0.10 ng g−1 Re and 166.0 ± 0.9 pg g−1 total Os, and possesses isotope amount ratios of 574 ± 3 for 187Re/188Os and 1.64 ± 0.01 for 187Os/188Os (n = 24, 95% conf.). The intermediate precision of these data makes the RM 8505 whole oil and the (~ 90 g) homogenised asphaltene appropriate petroleum matrix‐matched reference materials for Re‐Os measurements. The asphaltene fraction of the oil is the main carrier of Re and Os of the RM 8505 whole oil, and caution is suggested in using asphaltene and maltene fractions of a single oil for Re‐Os geochronology.

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Section: Total Procedural Blanks Of Rhenium and Osmium And 187os/188mentioning

confidence: 97%

Section: Total Procedural Blanks Of Rhenium and Osmium And 187os/188mentioning

confidence: 97%

Section: Total Procedural Blanks Of Rhenium and Osmium And 187os/188mentioning

confidence: 97%

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A Matrix‐Matched Reference Material for Validating Petroleum Re‐Os Measurements

Liu

Selby

2017

Geostandard Geoanalytic Res

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“…Ventura et al 2015;Georgiev et al 2016), now provide new constraints on the origin and history of hydrocarbons. The study by Gao et al (2017) in this volume reports on some of the first results of vanadium isotope ( 51 V/ 50 V) analysis of oils.…”

Section: The New Frontier In Geochemical Applications In Petroleum Symentioning

confidence: 99%

“…This technique provide new constraints on the origin and history of hydrocarbons (Ventura et al 2015;Georgiev et al 2016). In this volume, Gao et al (2017) discuss the systematics of the vanadium system, and here we describe results from the analysis of Re-Os in whole oils and asphaltenes from three wells in the NE corner of the Bighorn Basin (Fig.…”

Section: Bighorn Basin Petroleum Systems Study: the Power Of Integrationmentioning

confidence: 99%

Geochemical applications in petroleum systems analysis: new constraints and the power of integration

Lawson

Formolo

Summa

et al. 2018

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This paper provides an overview of the role that geochemistry plays in petroleum systems analysis, and how this can be used to derive constraints on the key elements and processes that give rise to a successful petroleum system. We discuss the history of petroleum geochemistry before reflecting on the next frontier in geochemical applications in hydrocarbon systems. We then review the individual contributions to this Special Publication. These papers present new geochemical techniques that allow us to develop a more systematic understanding of critical petroleum system elements; including the temperature and timing of source-rock deposition and maturation, the mechanisms and timescales associated with hydrocarbon migration, trapping, storage and alteration, and the impact of fluid flow on reservoir properties. Finally, we provide a practical example of how these different geochemical techniques can be integrated to constrain and generate a robust understanding of the prolific Paleozoic petroleum system of the Bighorn Basin.

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The 187Re-187Os and 190Pt-186Os Radiogenic Isotope Systems: Techniques and Applications to Metallogenic Systems

Norman

2023

Mineral Resource Reviews

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Rhenium, Os, and Pt are redox sensitive elements that are concentrated in highly reducing environments such as those associated with black shales but mobile under more oxidizing conditions such as those associated with arc volcanism. They are chalcophile in many terrestrial ore-forming environments, and their isotopic systematics provide unique opportunities to date the formation of sulfide ore deposits and understand their petrogenesis. Fractional crystallization of magmatic sulfide ores generates primary variations in Re/Os and Pt/Os that allow mineral and whole rock isochron ages to be determined and discrimination of crustal and mantle sources based on initial Os isotopic compositions. Molybdenite is especially well suited for geochronology due to its high Re/Os and resistance to resetting. Rhenium concentrations in molybdenite tend to reflect the composition or provenance of the ore-forming fluids, with higher concentrations associated with more primitive sources or more oxidized fluids and lower concentrations with more evolved and/or reduced conditions, although local and regional factors also have a significant influence. Many studies have used pyrite for dating but its typically low Re concentration, variable initial Os isotopic composition (reflecting fluid mxing), and susceptibility to re-equilibration makes its use as a geochronometer problematic in many cases. Other sulfide minerals such as bornite and arsenopyrite have shown promise for Re–Os isotope geochronology but additional studies are needed to evaluate their broader applicability for dating of ore deposits. The isobaric beta decay of parent isotope 187Re to 187Os has restricted investigation of this system by microbeam techniques such as ion microprobe or laser ablation mass spectrometry, especially for geochronology. This requires either chemically processing the sample to separate the elements or novel techniques such as collision-cells that preferentially ionize the Re and Os during the analysis. Thermal ionization mass spectrometry (TIMS) and inductively-coupled plasma mass spectrometry (ICPMS) are the most widely applied techniques for Re-Pt-Os isotopic analyses. Specialized techniques for sample digestion to ensure redox equilibrium between Os in the sample and the isotopically enriched spikes used for isotope dilution measurements are typically required. This chapter briefly reviews development of the 187Re-187Os and 190Pt-186Os isotopic systems for earth science, physico-chemical controls on their behavior in ore-forming environments, and applications to metallogenic systems.

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Re–Os dating of maltenes and asphaltenes within single samples of crude oil

Cited by 45 publications

References 48 publications

A Matrix‐Matched Reference Material for Validating Petroleum Re‐Os Measurements

A Matrix‐Matched Reference Material for Validating Petroleum Re‐Os Measurements

Geochemical applications in petroleum systems analysis: new constraints and the power of integration

The 187Re-187Os and 190Pt-186Os Radiogenic Isotope Systems: Techniques and Applications to Metallogenic Systems

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