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• W2964768891 startingPage "343" @default.
• W2964768891 abstract "Acid leaching has been widely used in Pb–Pb chronology especially on meteorite samples, as it enhances the precision and accuracy of the chronology by separating radiogenic Pb from non-radiogenic Pb in the samples. Yet, the detailed mechanism of the radiogenic Pb separation remains elusive. Here we report scanning electron microscopy observations of acid-leached minerals from three achondrites that were previously analyzed for pyroxene PbPb dating (D'Orbigny, Ibitira and Northwest Africa 6704), and one stony‑iron meteorite (Brenham). Moreover, we present chemical analysis of acid leachates and residues of pyroxene and whole-rock fractions from the three achondrites using inductively coupled plasma mass spectrometry. The combined results reveal the resistance of minerals to acid treatments with HNO3, HCl, and HF and, in turn, allow us to explore the prospects and limitations of acid leaching for PbPb chronology. In particular, we show that (i) washing with dilute acids can efficiently liberate contaminant terrestrial Pb adsorbed on the mineral surface; (ii) hot and more concentrated (~6 M) HNO3 and HCl can separate pyroxenes from sulfides and anorthitic plagioclase that are highly enriched in initial non-radiogenic Pb; (iii) albitic plagioclase and pyroxenes show limited dissolution during the HNO3 and HCl treatments, but are progressively leached by hot 1 M HF, making it difficult to separate them from each other; and (iv) within single pyroxene grains having exsolved lamellar textures, high-Ca lamellae are more efficiently leached by the HF treatment than low-Ca ones. In the context of a two-stage Pb isotopic evolution model for pyroxene lamellae, we demonstrate that heterogeneous and incomplete dissolution of pyroxene lamellae with dilute HF can result in inaccurate PbPb age estimates. This may account for previously observed scattered Pb isotopic data for meteorite samples that were taken as evidence for isotope fractionation in a radiogenic Pb component during HF treatments." @default.
• W2964768891 created "2019-08-13" @default.
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• W2964768891 date "2019-10-01" @default.
• W2964768891 modified "2023-09-30" @default.
• W2964768891 title "The promise and potential pitfalls of acid leaching for Pb Pb chronology" @default.
• W2964768891 cites W1536806568 @default.
• W2964768891 cites W1963656015 @default.
• W2964768891 cites W1964439589 @default.
• W2964768891 cites W1965858395 @default.
• W2964768891 cites W1966848695 @default.
• W2964768891 cites W1967358227 @default.
• W2964768891 cites W1967731221 @default.
• W2964768891 cites W1967831160 @default.
• W2964768891 cites W1969859799 @default.
• W2964768891 cites W1970076158 @default.
• W2964768891 cites W1970255595 @default.
• W2964768891 cites W1978129090 @default.
• W2964768891 cites W1980728284 @default.
• W2964768891 cites W1982097095 @default.
• W2964768891 cites W1987161300 @default.
• W2964768891 cites W1987262148 @default.
• W2964768891 cites W1987571129 @default.
• W2964768891 cites W1990842556 @default.
• W2964768891 cites W1991131574 @default.
• W2964768891 cites W1993766547 @default.
• W2964768891 cites W1994154026 @default.
• W2964768891 cites W1997097550 @default.
• W2964768891 cites W1997681178 @default.
• W2964768891 cites W2000313707 @default.
• W2964768891 cites W2002428335 @default.
• W2964768891 cites W2002476941 @default.
• W2964768891 cites W2005067694 @default.
• W2964768891 cites W2007580443 @default.
• W2964768891 cites W2008310792 @default.
• W2964768891 cites W2010369657 @default.
• W2964768891 cites W2011680629 @default.
• W2964768891 cites W2011813067 @default.
• W2964768891 cites W2014301832 @default.
• W2964768891 cites W2016883133 @default.
• W2964768891 cites W2019169347 @default.
• W2964768891 cites W2020822666 @default.
• W2964768891 cites W2021931304 @default.
• W2964768891 cites W2022175403 @default.
• W2964768891 cites W2024341329 @default.
• W2964768891 cites W2024823751 @default.
• W2964768891 cites W2025991317 @default.
• W2964768891 cites W2027622747 @default.
• W2964768891 cites W2028815294 @default.
• W2964768891 cites W2032196651 @default.
• W2964768891 cites W2037394442 @default.
• W2964768891 cites W2037503004 @default.
• W2964768891 cites W2039556570 @default.
• W2964768891 cites W2043159228 @default.
• W2964768891 cites W2045082996 @default.
• W2964768891 cites W2046238438 @default.
• W2964768891 cites W2050732885 @default.
• W2964768891 cites W2050841497 @default.
• W2964768891 cites W2052784805 @default.
• W2964768891 cites W2056444470 @default.
• W2964768891 cites W2058032196 @default.
• W2964768891 cites W2065723134 @default.
• W2964768891 cites W2067228709 @default.
• W2964768891 cites W2067707082 @default.
• W2964768891 cites W2068886828 @default.
• W2964768891 cites W2073066596 @default.
• W2964768891 cites W2083391455 @default.
• W2964768891 cites W2084062931 @default.
• W2964768891 cites W2084614127 @default.
• W2964768891 cites W2086497115 @default.
• W2964768891 cites W2087634871 @default.
• W2964768891 cites W2088155073 @default.
• W2964768891 cites W2090620738 @default.
• W2964768891 cites W2098839813 @default.
• W2964768891 cites W2100273940 @default.
• W2964768891 cites W2126527044 @default.
• W2964768891 cites W2141217251 @default.
• W2964768891 cites W2164197774 @default.
• W2964768891 cites W223602660 @default.
• W2964768891 cites W2509971795 @default.
• W2964768891 cites W2547056294 @default.
• W2964768891 cites W2726989616 @default.
• W2964768891 cites W2800559061 @default.
• W2964768891 cites W2801930217 @default.
• W2964768891 cites W2893251158 @default.
• W2964768891 cites W2962768655 @default.
• W2964768891 cites W4252276610 @default.
• W2964768891 doi "https://doi.org/10.1016/j.chemgeo.2019.07.035" @default.
• W2964768891 hasPublicationYear "2019" @default.
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