Lead Isotopic Ages of Chondrules and Calcium-Aluminum-Rich Inclusions

By Y. Amelin, A. Krot, I. Hutcheon, A. Ulyanov. Science, 2002

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In Astronomy and Astrophysics

Citations in the corpus

What Martian Meteorites Reveal About the Interior and Surface of Mars (2020, background): “, 2017) after solar system condensation of calcium-aluminum-rich inclusions (CAIs) at ∼4,567 Ma (Amelin, 2002; Connelly et al., 2012, 2017).”
Planetary accretion in the inner Solar System (2004, background): “Chondrules apparently formed 1–4 Myr later than this [17,18].”
An algorithm for U‐Pb isotope dilution data reduction and uncertainty propagation (2011, background): “…tectonic models [e.g., Schoene et al., 2008], determine the timing and tempo of mass extinctions and ecological recovery [Bowring et al., 1998], calibrate a global geologic timescale [Davydov et al., 2010], and establish a precise chronology for the early solar system [Amelin et al., 2002].”
The importance of experiments: Constraints on chondrule formation models (2010, background): “These ages are consistent with absolute U-Pb dating of chondrules and CAIs, which likewise reveal an age difference of 2 Myr between CAIs and chondrules, albeit from different chondrite classes (Amelin et al. 2002; Connelly et al. 2008).”
Rapid Timescales for Accretion and Melting of Differentiated Planetesimals Inferred from 26Al-26Mg Chronometry (2005, background): “…age of their youngest components (i.e., chondrules), the accretion of the EPB, MPB, and APB must have predated the accretion of chondrite parent bodies since most absolute or relative chondrule ages extend to12 Myr after CAI formation (Amelin et al. 2002; Bizzarro et al. 2004; Kita et al. 2004).”
Chronology of the Solar System’s Oldest Solids (2008, methodology): “In contrast, the ages of chondrules from CV (4565.45 0.45 Myr), CR (4564.1–4564.7 Myr; Amelin et al. 2002), and CB (4562.7 0.5 Myr; Krot et al. 2005) chondrites suggest a more protracted and/or longer period of chondrule formation within the protoplanetary disk, possibly related to shock wave…”
HETEROGENEOUS DISTRIBUTION OF 26Al AT THE BIRTH OF THE SOLAR SYSTEM (2010, background): “…inclusions from the CV carbonaceous chondrites (CV CAIs) are the oldest solar system solids dated using U-Pb absolute chronology (Amelin et al. 2002; Bouvier and Wadhwa 2010; Bouvier et al. 2011a; Connelly et al. 2011) and, therefore, provide important constraints on the…”
The age of SNC meteorites and the antiquity of the Martian surface (2005, background): “[41] that because of the possibility of partial dissolution and preferential leaching of U and/or Pb during intensive acid washing, only Pb–Pb dates should be considered and we contend that U–Pb ages on shergottites do not represent a reliable chronological constraint.”
26Al‐26Mg isotope systematics of the first solids in the early solar system (2013, neutral): “Calcium-aluminum-rich inclusions (CAIs) in CV (Vigarano type) carbonaceous chondrites have the oldest measured Pb-Pb ages of any early solar system objects (Amelin et al. 2002, 2010; Bouvier and Wadhwa 2010; Bouvier et al. 2011b; Connelly et al. 2012).”
Astrophysics with Extraterrestrial Materials (2016, methodology): “Note that CAI formation is thought to last only a brief period of time ( 0.1 Myr), whereas chondrule formation is thought to have begun along with CAI formation and persisted for ∼3 Myr.”
Iapetus’ geophysics : rotation rate, shape, and equatorial ridge (2007, background): “If we accept the Pb–Pb age of CAIs measured by Amelin et al. (2002) of 4567.”
The Ages of Stars (2007, background): “Most of the bona fide OCs have ages from ∼ 10 to ∼ 200 Myr, older clusters being rare due to their tidal disruption in the Galaxy.”
EVIDENCE FOR MAGNESIUM ISOTOPE HETEROGENEITY IN THE SOLAR PROTOPLANETARY DISK (2011, background): “…meteorites and their components (Thrane et al. 2006; Villeneuve et al. 2009), and from the concordancy between 26Al–26Mg and 207Pb–206Pb ages obtained on the same chondritic components, namely calcium–aluminiumrich inclusions (CAIs) and chondrules (Amelin et al. 2002; Connelly et al. 2008a).”
Low-temperature isotopic fractionation of uranium (2007, methodology): “The apparent absence of isotopic fractionation effects in meteoritic (235)U/(238)U verifies that models of solar system formation constrained by Pb–Pb relative age differences of only a few million years (Amelin et al., 2002; Amelin, 2005; Baker et al., 2005) are likely to be robust and not require ”