A 4,565-My-old record of the solar nebula field
Clara Maurel and Jérôme Gattacceca PNAS, March 4, 2024 121 (12) LINK “ABSTRACT: Magnetic fields in protoplanetary disks are thought to play a prominent role in the formation of planetary bodies. Acting upon turbulence and…
The impact history and prolonged magmatism of the angrite parent bodyOPEN ACCESS
B. G. Rider-Stokes, M. Anand, L. F. White, J. R. Darling, R. Tartèse, M. J. Whitehouse, I. Franchi, R. C. Greenwood, G. Degli-Alessandrini MAPSVersion of Record online: 27 November 2023 LINK (OPEN ACCESS)PDF (OPEN ACCESS)…
Lead-Lead (Pb-Pb) Dating of Eucrites and Mesosiderites: Implications for the Formation and Evolution of VestaOPEN ACCESS
I. Kouvatsis, J.A. Cartwright, M.J. Whitehouse Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 29 March 2023 LINK (OPEN ACCESS) “Asteroid 4 Vesta is the largest known differentiated body in the asteroid belt, and…
A unified chronology of dust formation in the early solar systemOPEN ACCESS
Maxime Piralla, Johan Villeneuve, Nicolas Schnuriger, David V. Bekaert, Yves Marrocchi IcarusAvailable online 9 January 2023, 115427 (updated: 12 January 2023) LINK (OPEN ACCESS)PDF (OPEN ACCESS) Highlights • Aluminum-Magnesium dating of spinel-bearing chondrules. • Chondrule…
Al-Mg and U-Pb chronological records of Erg Chech 002 ungrouped achondrite meteorite
Philip M. Reger, Yvonne Roebbert, Wladimir Neumann, Abdelmouhcine Gannoun, Marcel Regelous, Winfried H. Schwarz, Thomas Ludwig, Mario Trieloff, Stefan Weyer, Audrey Bouvier Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 23 December 2022 LINK…
Statistical Chronometry of Meteorites. II. Initial Abundances and Homogeneity of Short-lived RadionuclidesOPEN ACCESS
Steven J. Desch, Daniel R. Dunlap, Curtis D. Williams, Prajkta Mane, Emilie T. Dunham Submitted to Geochimica et Cosmochimica Acta PDF (OPEN ACCESS) Update (published in Icarus, 6 May 2023): LINK “• We present a…
Statistical chronometry of meteorites. I. A Test of 26Al homogeneity and the Pb-Pb age of the solar system’s t=0OPEN ACCESS
Steven J. Desch, Daniel R. Dunlap, Emilie T. Dunham, Curtis D. Williams, Prajkta Mane Submitted to Geochimica et Cosmochimica Acta PDF (OPEN ACCESS) Update (published in Icarus, 6 May 2023, with new title): LINK “We…
Improved methods for high-precision Pb–Pb dating of extra-terrestrial materials
J. N. Connelly, J. Bollard, M. M. Costa, P. Vermeesch and M. Bizzarro Journal of Analytical Atomic SpectrometryFirst published on 20 Oct 2021 LINK “Dating meteoritic materials by the Pb–Pb isochron method depends on constructing…
Statistical Chronometry: Anchors Away!
Desch S. J., Dunlap D. R., Williams C. D., Torrano Z. A. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6231) PDF We fit 4 parameters (CAI Pb-Pb ages; solar system initial 53Mn/55Mn,…
High Precision Al-Mg Chronology of Chondrules in Unequilibrated Ordinary Chondrites
Siron G., Kita N. T., Fukuda K., Kimura M., 52nd Lunar and Planetary Science Conference (2021), Abstract #1639 PDF “New analyses of UOC chondrules with a range of mesostasis compositions indicate a restrict range of…
Pb‐Pb ages and initial Pb isotopic composition of lunar meteorites: NWA 773 clan, NWA 4734, and Dhofar 287OPEN ACCESS
R. E. Merle, A. A. Nemchin, M. J. Whitehouse, J. F. Snape, G. G. Kenny, J. J. Bellucci, J. N. Connelly, M. Bizzarro Meteoritics & Planetary ScienceVersion of Record online: 04 August 2020 LINK (OPEN…
Exploring the efficiency of stepwise dissolution in removal of stubborn non-radiogenic Pb in chondrule U-Pb dating
Renaud Merle, Yuri Amelin, Qing-Zhu Yin, Magdalena H. Huyskens, Matthew E. Sanborn, Kazuhide Nagashima, Katsuyuki Yamashita, Trevor R. Ireland, Alexander N.Krot, Melanie J. Sieber Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 18…
Pb isotope evidence for rapid accretion and differentiation of planetary embryosOPEN ACCESS
J.N. Connelly, M. Schiller, M. Bizzarro Earth and Planetary Science Letters Volume 525, 1 November 2019, 115722 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Highlights • We report a Pb-Pb age of 4565.47 ± 0.30 Ma…
The promise and potential pitfalls of acid leaching for Pb-Pb chronology
Kengo T.M. Ito, Yuki Hibiya, Yoshitaka Homma, Takashi Mikouchi, Tsuyoshi Iizuka Chemical Geology Volume 525, 20 October 2019, Pages 343-355 LINK “Highlights • We studied the mechanism by which acid leaching separates radiogenic and non-radiogenic…
Pb-Pb Age of the Ungrouped Achondrite Northwest Africa 11119: Timing of Extraterrestrial Silica-Rich Volcanism
D. R. Dunlap, P. K. Koefoed, Y. Amelin, M. Wadhwa, C. B. Agee 49th Lunar and Planetary Science Conference (2018), Abstract #2302 abstract
Early formation of planetary building blocks inferred from Pb isotopic ages of chondrulesOPEN ACCESS
By Jean Bollard, James N. Connelly, Martin J. Whitehouse, Emily A. Pringle, Lydie Bonal, Jes K. Jørgensen, Åke Nordlund, Frédéric Moynier, Martin Bizzarro Science Advances 09 Aug 2017: Vol. 3, no. 8, e1700407 DOI: 10.1126/sciadv.1700407…
Distinct 238U/235U ratios and REE patterns in plutonic and volcanic angrites: Geochronologic implications and evidence for U isotope fractionation during magmatic processes
François L.H. Tissot, Nicolas Dauphas, Timothy L. Grove Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 8 July 2017 LINK “Angrites are differentiated meteorites that formed between 4 and 11 Myr after Solar…
Pb-Pb and Rb-Sr Dates for Zagami and Northwest Africa 7034 Using CODEX
Anderson F. S. * Levine J. Whitaker T. J. 80th Annual Meeting of the Meteoritical Society 2017 [#6249] abstract (PDF) “We have produced new Pb-Pb dates of Zagami using CODEX, illustrating how in-situ dating can…
Accretion and Disruption Histories of the Ordinary Chondrite Parent Bodies
Edwards G. H. * Blackburn T. Alexander C. M. O’D. 80th Annual Meeting of the Meteoritical Society 2017 [#6367] abstract (PDF) “Discrepant Pb-Pb phosphate ages and Ni-metal metallographic cooling rates for ordinary chondrites may be…
Lead and Mg isotopic age constraints on the evolution of the HED parent body
Martin Schiller, James N. Connelly and Martin Bizzarro Meteoritics & Planetary Science. doi: 10.1111/maps.12848 Version of Record online: 23 MAR 2017 LINK “The large collection of howardite-eucrite-diogenite (HED) meteorites allows us to study the initial…
The Lu Isotopic Composition of Achondrites: Closing the Case for Accelerated Decay of 176Lu
Josh Wimpenny et al. The Astrophysical Journal Letters 2015 ApJ812 L3 LINK “Studies of Lu–Hf isotope systematics in meteorites have produced apparent “ages” that are older than Pb–Pb ages and older than the estimated age…
Pb-Pb dating of individual chondrules from the CBa chondrite Gujba: Assessment of the impact plume formation model
Bollard, J., Connelly, J. N. and Bizzarro, M. Meteoritics & Planetary Science. doi: 10.1111/maps.12461 LINK
Early Disk Dynamics Inferred from Isotope Systematics of Individual Chondrules
Bollard J. * Kawasaki N. Sakamoto N. Larsen K. Wielandt D. Schiller M. Connelly J. N. Yurimoto H. Bizzarro M. 78th Annual Meeting of the Meteoritical Society (2015), abstract #5211 abstract (PDF)
High-Precision U-Pb and Pb-Pb Geochronology at UC Davis — First Results for EarlyTime Standards
M.H. Huyskens, M.E. Sanborn and Q.-Z. Yin 46th Lunar and Planetary Science Conference (2015), Abstract #2340 PDF LINK
