Re-Os geochronology for the NIST RM 8505 crude oil: The importance of analytical protocol and uncertainty

Hurtig, Nicole C.; Georgiev, Svetoslav; Zimmerman, A.; Yang, Guanghai; Goswami, Vineet; Hannah, Judith L.; Stein, Holly J.

doi:10.1016/j.chemgeo.2019.119381

Cited by 13 publications

(38 citation statements)

References 47 publications

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“…Li and Yin (2019) reported the Re, Os mass fractions and 187 Os/ 188 Os isotope ratios of USGS SBC-1 and recommended that it could be used as a QCM (quality control material) for Re-Os measurement results of marine shale. Sen and Peucker-Ehrenbrink (2014), Georgiev et al (2016), Liu and Selby (2018) and Hurtig et al (2020) reported the Re, Os mass fraction and 187 Os/ 188 Os isotope ratio data of NIST SRM 8505 crude oil and its asphaltene separates. Additionally, Georgiev et al (2016) have reported the first values for Re-Os isotope ratios ( 187 Re/ 188 Os and 187 Os/ 188 Os ratios) of NIST RM 8505, as well as a detailed measurement procedure for optimal digestion of oil samples for Re-Os measurement.…”

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confidence: 99%

Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and ¹⁸⁷Os/¹⁸⁸Os Ratios of Organic‐Rich Geological Reference Materials

Wang

Chu

Meisel

et al. 2022

Geostandard Geoanalytic Res

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At present, reported data for Re‐PGE mass fractions (in particular) and 187Os/188Os isotope ratios of organic‐rich reference materials (RMs) are rare, hampering the comparison of data quality between different laboratories. In this study, we measured the Re‐PGE (Os, Ir, Ru, Pt and Pd) mass fractions, as well as 187Os/188Os isotope ratios of five shale RMs, including USGS SGR‐1b (oil shale), SBC‐1 (marine shale), SCo‐2 (silty marine shale), ShTX‐1 (calcareous organic‐rich shale) and ShCX‐1 (calcareous shale), and one oil RM, NIST RM 8505. The results show that the five shale RMs have similar upper continental crust‐normalised PGE‐Re patterns and are generally homogeneous in Re‐PGE mass fractions and 187Os/188Os isotope ratios at test portions of 0.2–0.5 g, and thus can be used as matrix‐matched RMs for Re‐Os and PGE of shale samples. The oil RM NIST 8505 and its asphaltene separates are also roughly homogeneous in Re‐PGE mass fractions and 187Os/188Os isotope ratios at test portions of 0.1–0.3 g and can potentially be used as an oil RM for Re‐Os and PGE.

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confidence: 99%

Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and ¹⁸⁷Os/¹⁸⁸Os Ratios of Organic‐Rich Geological Reference Materials

Wang

Chu

Meisel

et al. 2022

Geostandard Geoanalytic Res

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“…NIST RM 8505 whole oil and its homogenized powered asphaltene separates were recommended as Re-Os matrix-matched oil RMs by Liu and Selby (2018) . Hurtig et al (2020) also reported Re-Os data for NIST RM 8505 crude oil and another oil RM, NIST RM 1634c. Although the Re, Os mass fractions for NIST RM 8505 whole oil reported by Hurtig et al (2020) are consistently higher than those reported by Liu and Selby (2018) , the 187 Os/ 188 Os data between the two labs are consistent within stated precisions.…”

Section: Reference Materials For Data Quality Control Of Re-os and Pgmentioning

confidence: 99%

“… Hurtig et al (2020) also reported Re-Os data for NIST RM 8505 crude oil and another oil RM, NIST RM 1634c. Although the Re, Os mass fractions for NIST RM 8505 whole oil reported by Hurtig et al (2020) are consistently higher than those reported by Liu and Selby (2018) , the 187 Os/ 188 Os data between the two labs are consistent within stated precisions. The reported Re-Os data for these oil RMs are summarized in Table 3 .…”

Section: Reference Materials For Data Quality Control Of Re-os and Pgmentioning

confidence: 99%

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Analytical Methods for Os Isotope Ratios and Re-PGE Mass Fractions in Geological Samples

Chu

2021

Front. Chem.

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The recent advances in analytical methods of Re-Os and PGE in geological materials including sample dissolution, chemical separation, mass spectrometric determinations, as well as the developments of matrix-matched reference materials for data quality control are thoroughly reviewed. Further, the in-situ measurement methods for Re-PGE mass fractions and 187Os/188Os ratios, as well as the measurement methods for stable isotope ratios of Re and PGE are also briefly reviewed. This review stands as a comprehensive reference for researchers to consider in the development of measurement methods for Re-PGE mass fractions and 187Os/188Os ratios in geological materials.

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“…The Re-Os isotope system has shown great potential for dating and tracing crude oils to their source in marine and lacustrine petroleum systems Finlay et al, 2011;Lillis and Selby, 2013;Cumming et al, 2014;Georgiev et al, 2016;Ge et al, 2018;Corrick et al, 2019;Scarlett et al, 2019;Hurtig et al, 2020). These studies show that Re-Os geochronology of crude oils can yield isochron ages that match the timing of oil generation, as confirmed independently by other techniques such as basin modelling and 40 Ar/ 39 Ar dating of fluid inclusions.…”

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confidence: 55%

Rhenium-osmium geochronology and isotopic systematics in New Zealand source rocks and oils

Rotich¹

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<p>The Re-Os radiogenic isotope system has over the past three decades been successfully applied to organic-rich sedimentary rocks and oils as a geochronometer and geochemical tracer. The Re-Os geochronometer has provided a direct way of constraining the depositional age of organic-rich sediments as well as the timing of oil generation events. Osmium isotopic compositions have further been utilised in understanding past climatic, oceanographic and geological events recorded in sediments, and in correlating oils to their source. Thus far, however, Re-Os studies of organic-rich sediments have mainly focused on marine black shales where Re and Os are primarily sourced from seawater. The work presented in this thesis seeks to investigate factors controlling Re-Os systematics and potential for geochronology in a range of fluvio-deltaic coaly rocks and terrestrial organic matter-dominated marine sediments, and associated oils from New Zealand’s Taranaki and East Coast basins. The Re-Os data presented here yield the first radiometric age for the late Paleocene Waipawa Formation (57.5 ± 3.5 Ma), a marine sedimentary unit that was formed by episodic input of large amounts of terrestrial woody plant matter resulting in high average sedimentation rates of up to ~10.6 cm/ky. This age is consistent with available biostratigraphic age determinations. The formation possesses Re (38.9 ± 17.6 ppb) and Os (526 ± 75.8 ppt) concentrations similar to those found in typical marine sediments containing amorphous organic matter deposited under much lower sedimentation rates. This indicates that organic matter type and sedimentation rate may not play a significant role in sequestration of these elements in organic-rich sediments. Unlike the Waipawa Formation, coals and coaly mudstones with varying degrees of marine influence (purely terrestrial to strongly marine-influenced) from the Rakopi, North Cape, Farewell and Mangahewa formations record low average Re (0.37 ± 0.25 ppb) and Os (24.5 ± 11.9 ppt) concentrations. These concentrations are up to two orders of magnitude lower than those of similarly marine-influenced coals from the Matewan coalbed, USA, suggesting that Re and Os enrichment in coals does not simply correlate with the level of marine influence; the timing and nature of the marine influence, as well as chelation ability of organic-rich sediments, are equally important. The initial 187Os/188Os (Osi) values for the Waipawa (~0.28) and underlying Whangai (~0.36) formations are broadly similar to those reported for coeval pelagic sediments from the central Pacific Ocean, further constraining the low-resolution marine 187Os/188Os record of the Paleocene. A broad correlation between this record and global temperature (δ18O and TEX86) and carbon isotope (δ13C) records is observed from the middle Paleocene to early Eocene, which is inferred to reflect climate-modulated changes in continental weathering patterns. Unlike the marine sediments, significant variations are noted in the Osi of the Taranaki Basin coaly rocks. These are linked to depositional and diagenetic conditions, degree of water connectivity with the open ocean, and sediment source. The large variations in Osi values combined with small ranges in 187Re/188Os ratios and relatively young ages are considered as factors that hindered development of Re-Os isochrons in these rocks. Crude oils sourced from the Taranaki coals and coaly mudstones also record low average Re (0.31 ± 0.09 ppb) and Os (14 ± 7.6 ppt) concentrations and have 187Re/188Os and 187Os/188Os ratios that do not correlate on an isochron diagram. The lack of an isochron fit for these oils is mainly attributed to a large variation in Osi values (0.47-1.14) resulting from the heterogeneous nature of their potential Rakopi and North Cape coaly source rocks and a lengthy (20 Myr) oil generation event. These Osi values, however, overlap with 187Os/188Os values for the potential source rocks at the time (ca.10 Ma) of oil generation (0.38-1.26), suggesting that Os isotopes may be utilised in tracing these oils. Crude oils that have potentially been sourced from the Waipawa and Whangai formations record much higher Re (2.86 ± 1.92 ppb) and Os (166 ± 142 ppt) concentrations than the coaly-sourced oils, and show Os isotopic compositions that either correlate with those of their potential source rocks (e.g., oil Osi = ~0.63 compared with Waipawa Formation 187Os/188Os = 0.48–0.68 at time of oil generation) or differ due to likely secondary alteration processes within the reservoir such as thermochemical sulfate reduction (TSR).</p>

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Re-Os geochronology for the NIST RM 8505 crude oil: The importance of analytical protocol and uncertainty

Cited by 13 publications

References 47 publications

Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and ¹⁸⁷Os/¹⁸⁸Os Ratios of Organic‐Rich Geological Reference Materials

Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and ¹⁸⁷Os/¹⁸⁸Os Ratios of Organic‐Rich Geological Reference Materials

Analytical Methods for Os Isotope Ratios and Re-PGE Mass Fractions in Geological Samples

Rhenium-osmium geochronology and isotopic systematics in New Zealand source rocks and oils

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Re-Os geochronology for the NIST RM 8505 crude oil: The importance of analytical protocol and uncertainty

Cited by 13 publications

References 47 publications

Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and 187Os/188Os Ratios of Organic‐Rich Geological Reference Materials

Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and 187Os/188Os Ratios of Organic‐Rich Geological Reference Materials

Analytical Methods for Os Isotope Ratios and Re-PGE Mass Fractions in Geological Samples

Rhenium-osmium geochronology and isotopic systematics in New Zealand source rocks and oils

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Product

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Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and ¹⁸⁷Os/¹⁸⁸Os Ratios of Organic‐Rich Geological Reference Materials

Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and ¹⁸⁷Os/¹⁸⁸Os Ratios of Organic‐Rich Geological Reference Materials