Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and Os-187/Os-188 Ratios of Organic-Rich Geological Reference Materials
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In: Geostandards and Geoanalytical Research, Vol. 46.2022, No. 2, 11.04.2022, p. 333-349.
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TY - JOUR
T1 - Determination of Re, Os, Ir, Ru, Pt, Pd Mass Fractions and Os-187/Os-188 Ratios of Organic-Rich Geological Reference Materials
AU - Wang, Mengjie
AU - Chu, Zhuyin
AU - Meisel, Thomas C.
AU - Guo, Jinghui
N1 - Publisher Copyright: © 2022 The Authors. Geostandards and Geoanalytical Research © 2022 International Association of Geoanalysts.
PY - 2022/4/11
Y1 - 2022/4/11
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85127979063&partnerID=8YFLogxK
U2 - 10.1111/ggr.12423
DO - 10.1111/ggr.12423
M3 - Article
VL - 46.2022
SP - 333
EP - 349
JO - Geostandards and Geoanalytical Research
JF - Geostandards and Geoanalytical Research
SN - 1639-4488
IS - 2
ER -
