Comparing the Ages of OC and CC CAIs
Dunham E. T.* Burman A. McKeegan K. D. Liu M.-C. Matsuda N. Telus M. 54th Lunar and Planetary Science Conference 2023 abstract [#1634] NC and CC / CAIs formed at the same / Time and area.
Bulk and in-situ chemical analysis of meteorite Berduc, an L6 chondrite
Amit Basu Sarbadhikari, Garima Arora, Maria E Varela & Ramakant R Mahajan Journal of Earth System Science, Volume 132, Article number: 21Published: 27 January 2023 LINK “We present a detailed study of petrography, mineralogy, mineral chemistry and bulk…
Uncertainties in physical properties of Itokawa-like asteroids widen constraints on their formation timeOPEN ACCESS
Jonas Hallstrom & Maitrayee Bose Earth, Planets and Space volume 75, Article number: 11Published: 20 January 2023 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “One of the outstanding questions in planetary science is to determine how the fundamental mechanical and…
Mass-independent Sn isotope fractionation and radiogenic 115Sn in chondrites and terrestrial rocks
Alessandro Bragagni, Frank Wombacher, Maria Kirchenbaur, Ninja Braukmüller, Carsten Münker Geochimica et Cosmochimica ActaAvailable online 20 January 2023 LINK “Tin has ten stable isotopes, providing the opportunity to investigate and discriminate nucleosynthetic isotope anomalies from…
Tracing the history of an unusual compound presolar grain from progenitor star to asteroid parent body hostOPEN ACCESS
Sheryl A. Singerling, Larry R. Nittler, Jens Barosch, Elena Dobrica, Adrian J. Brearley, Rhonda M. Stroud Accepted for publication in Geochimica et Cosmochimica Acta on January 17, 2023 PDF (OPEN ACCESS) “We conducted a TEM…
Thermodynamic Calculations Support a Rain Cloud Model of Chondrule FormationOPEN ACCESS
Arthur D. Pelton ACS Earth and Space ChemistryPublication Date: January 4, 2023 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Thermodynamic calculations using the critically evaluated and optimized FactSage databases lead to the conclusion that chondrules of all…
TANXI meteorite fall (H6, >10.7 kg) in Tanxi (檀溪镇), Pujiang County (浦江县), Jinhua (金华市), Zhejiang Province (浙江省), China at ~17:48:42- (CST)/ 9:48:42 (UT) on 15 December 2022
Last update: 21 January 2023 Meteorite fall (H6) in and around the villages Maodian, Chengtou and Siqian, within Tanxi Township, Pujiang County, Jinhua, Zhejiang Province, China. According to media reports it fell around 17:48:42 (CST)…
Chondrite diversity revealed by chromium, calcium and magnesium isotopesOPEN ACCESS
Ke Zhu, Martin Schiller, Frédéric Moynier, Mirek Groen, Conel M. O’D. Alexander, Jemma Davidson, Devin L. Schrader, Addi Bischoff, Martin Bizzarro Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 13 December 2022 LINK (OPEN…
Ar-Ar and U-Pb ages of Chelyabinsk and a re-evaluation of its impact chronology
Sky P. Beard, Timothy D. Swindle, Thomas J. Lapen, David A. Kring MAPS, Version of Record online: 01 December 2022 LINK “The LL5 chondrite Chelyabinsk has had numerous isotopic studies since its fall in 2013….
Analysis of the daylight fireball of July 15, 2021, leading to a meteorite fall and find near Antonin, Poland, and a description of the recovered chondriteOPEN ACCESS
Lukáš Shrbený,Agata M. Krzesińska,Jiří Borovička,Pavel Spurný,Zbigniew Tymiński,Kryspin Kmieciak MAPS, Version of Record online: 01 December 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We present the description of an observation of a fireball recorded during the sunrise…
Radioactive Isotopes as a Tool for Pairing Identification of the HAH 346—Hammadah al Hamra 346—Ordinary Chondrites from Two Separate Find AreasOPEN ACCESS
Magdalena Długosz-Lisiecka, Tomasz Jakubowski, Marcin Krystek and Ahmed ElMallul Minerals, Volume 12, Issue 12Published: 1 December 2022 LINK (OPEN ACCESS)PDF (DOWNLOAD) “In this study, low-background gamma spectrometry was used to confirm the identity of a…
The early Solar System Abundance of Iron-60: New Constraints from Chondritic SilicatesOPEN ACCESS
János Kodolányi, Peter Hoppe, Christian Vollmer, Jasper Berndt, and Maren Müller The Astrophysical Journal, Volume 940, Number 1 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The abundance of iron-60 in the early solar system is important for…
Malotas (b), a new eucrite from an old fall
Marcela E. Saavedra, Julia Roszjar, My E. I. Riebe, María E. Varela, Shuying Yang, Munir Humayun, Ryoji Tanaka, H. Busemann MAPSFirst Published: 17 November 2022 LINK “On the night of June 22, 1931 at 4 h…
Vesicular olivines and pyroxenes in shocked Kamargaon L6 Chondrite: Implications for primary volatiles and its multiple impacts history
Kishan Tiwari, Sujoy Ghosh, Masaaki Miyahara, Dwijesh Ray JGR PlanetsFirst Published: 14 November 2022 LINK We report the first occurrence of vesicular olivine and pyroxene in an ordinary chondrite Vesicles possibly formed due to release…
Terrestrial ages of seven meteorite strewn fields and two single unpaired meteorites from the Sultanate of Oman determined using 14C and 10BeOPEN ACCESS
Malgorzata U. Sliz, Beda A. Hofmann, Ingo Leya, Sönke Szidat, Christophe Espic, Jérôme Gattacceca, Régis Braucher, Daniel Borschneck, Edwin Gnos, ASTER Team MAPSVersion of Record online: 13 November 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Through…
Once in a summer: Fall history of the JaH 073 strewn field, Sultanate of OmanOPEN ACCESS
Karl Wimmer, Edwin Gnos, Beda A. Hofmann MAPSVersion of Record online: 13 November 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Modeling of a prehistoric fall can be successful if a strewn field is very well documented…
Trace element composition of silicate minerals in the porphyritic and nonporphyritic chondrules of Elenovka (L5) and Knyahinya (L/LL5) meteorites
Kristina Sukhanova, Sergey Skublov, Olga Galankina, Elena Kotova GeochemistryIn Press, Journal Pre-proof, Available online 8 November 2022 LINK “The results of SIMS and EPMA studies on the silicate minerals and bulk compositions (SEM-EDS) of porphyritic…
Formation, cooling history and age of impact events on the IIE iron parent body: evidence from the Miles meteorite
Rachel S. Kirby, Penelope L. King, Marc D. Norman, Trevor R. Ireland, Margaret Forster, Arthur D. Pelton, Ulrike Troitzsch, Nobumichi Tamura Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 28 October 2022 LINK “Most…
The Traspena meteorite: Heliocentric orbit, atmospheric trajectory, strewn field, and petrography of a new L5 ordinary chondriteOPEN ACCESS
Manuel Andrade, José Á Docobo, Javier García-Guinea, Pedro P Campo, Mar Tapia, Luis Sánchez-Muñoz, Víctor Villasante-Marcos, Eloy Peña-Asensio, Josep M Trigo-Rodríguez, Jordi Ibáñez-Insa, Marc Campeny, Jordi Llorca Monthly Notices of the Royal Astronomical Society, stac2911Published:…
Earth’s composition was modified by collisional erosion
Paul Frossard, Claudine Israel, Audrey Bouvier, Maud Boyet Science29 Sep 2022Vol 377, Issue 6614pp. 1529-1532 LINK Supplementary Materials “The samarium-146 (146Sm)–neodymium-142 (142Nd) short-lived decay system (half-life of 103 million years) is a powerful tracer of…
The mid-Ordovician meteorite flux to Earth shortly before breakup of the L-chondrite parent body
ShiYong Liao, Birger Schmitz IcarusIn Press, Journal Pre-proof, Available online 23 September 2022 LINK “Highlights • Flux of large micrometeorites to Earth shortly (in the 2 Ma time interval) before the breakup of the L-chondrite parent…
On the origin of fluorine-poor apatite in chondrite parent bodiesOPEN ACCESS
Francis M. McCubbin, Jonathan A. Lewis, Jessica J. Barnes, Jeremy W. Boyce, Juliane Gross, Molly C. McCanta, Poorna Srinivasan, Brendan A. Anzures, Nicole G. Lunning, Stephen M. Elardo, Lindsay P. Keller, Tabb C. Prissel, and…
Presolar O- and C-anomalous grains in unequilibrated ordinary chondrite matricesOPEN ACCESS
Jens Barosch, Larry R. Nittler, Jianhua Wang, Elena Dobrică, Adrian J. Brearley, Dominik C. Hezel, Conel M. O’D. Alexander Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 29 August 2022 LINK PDF (OPEN ACCESS)…
Mineralogy, petrology, and oxygen isotopic compositions of aluminium-rich chondrules from unequilibrated ordinary and the Dar Al Gani 083 (CO3.1) chondrite
Samuel Ebert, Kazuhide Nagashima, Addi Bischoff, Jasper Berndt, Alexander N. Krot Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 28 August 2022 LINK “Understanding the genetic relationship between different chondritic components will help to…
The chondrite breccia of Antonin (L4-5)—A new meteorite fall from Poland with a heterogeneous distribution of metalOPEN ACCESS
Addi Bischoff, Markus Patzek, Stefan T. M. Peters, Jean-Alix Barrat, Tommaso Di Rocco, Andreas Pack, Samuel Ebert, Christian A. Jansen, Kryspin Kmieciak MAPSVersion of Record online: 23 August 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “On…
The Structural analysis of Kunya-Urgench chondrite: The nondestructive neutron studies
Sergey E. Kichanov, Bekhzodjon A. Abdurakhimov, Ivan Yu Zel, Andrei K. Kirillov, Denis P. Kozlenko, Irina K. Lapina, Yulii L. Mentsin MAPSVersion of Record online: 21 August 2022 LINK “We present the results of neutron…
Spectroscopic Characterization of the Gefion Asteroid Family: Implications for L-chondrite
Allison M McGraw, Vishnu Reddy, Juan A Sanchez Monthly Notices of the Royal Astronomical Society, stac2075Published: 03 August 2022 LINK “Asteroid families are cosmic puzzles that help us understand the true nature of their original…
Geochemical evidence for the origin of the IIE parent body from H chondrite-like material
S. N. Teplyakova, M. Humayun, C. A. Lorenz, M. A. Ivanova MAPSVersion of Record online: 31 July 2022 LINK “Isotopic compositions of O, Mo, and Cu in the IIE iron meteorites have indicated a close…
Cranfield (H3-5, S3, >596.83 g) meteorite fall (27 April 2022, 8:03 a.m. CDT (13:03 GMT)) officially registered
MB 111 Writeup: Cranfield “Cranfield 31°33’06.1″N, 91°11’36.6″W Mississippi, United States Confirmed fall: 2022 Apr 27 Classification: Ordinary chondrite (H3-5) History: (M. Fries): On April 27, 2022, at 8:03 a.m. CDT (1303 GMT) multiple eyewitnesses from Arkansas, Louisiana,…
Portelândia (prov.) meteorite fall (OC) near Portelândia, Goiás, Brasil at ≲9.30 BRT (≲12.30 UTC) on 17 July 2022
Last update: 3 August 2022 According to cattle farm owner Josemar Rodrigues (52) from the Santa Luzia farm in the rural zone of Portelândia, Goiás in Brasil a meteorite (an ordinary chondrite (LL?)) fell through…
Determining the noble gas cosmic ray exposure ages of 23 meteorites (8 chondrites and 15 achondrites) from modeling and empirical methods
David V. Bekaert, Joshua Curtice, Matthias M. M. Meier, David J. Byrne, Michael W. Broadley, Alan Seltzer, Peter Barry, Mark D. Kurz, Sune G. Nielsen MAPSVersion of Record online: 30 June 2022 LINK “We present…
Noble gases, cosmic ray exposure and radiogenic ages in selected ordinary chondrites
Ramakant R. Mahajan Advances in Space ResearchIn Press, Journal Pre-proof, Available online 20 June 2022 LINK “Highlights • Cosmic ray exposure ages of the ordinary chondrites are estimated.• The exposure ages range between 5 to…
The Antonin L5 chondrite fall (Poland): Mineralogy and petrology of meteorite, bolide trajectory and meteoroid orbit
A.M. Krzesińska, Z. Tymiński, K. Kmieciak, L. Shrbený, P. Spurný and J. Borovička MetSoc22 abstract [#6144] LINK
Rapid Recovery of a New Chondrite Meteorite near Natchez, Mississippi
Welzenbach L. C. * Fries M. D. Cooke W. J. Moser D. Hicks S. Rassmussen E. Satterwhite C. E. Righter K. Sheikh D. Ruzicka A. M. Hutson M. L. Vargas R. Stream M. Eckley S….
Prolonged early migration of dust from the inner Solar System to the comet-forming region
Devin L. Schrader, Jemma Davidson Earth and Planetary Science LettersVolume 589, 1 July 2022, 117552 LINK “Highlights • We present olivine compositions from uequilibrated ordinary chondrites (UOCs).• UOC chondrule olivine compositionally matches olivine thought unique…
TEM analyses of in situ presolar grains from unequilibrated ordinary chondrite LL3.0 SemarkonaOPEN ACCESS
Sheryl A. Singerling, Larry R. Nittler, Jens Barosch, Elena Dobrica, Adrian J. Brearley, Rhonda M. Stroud Accepted for publication in Geochimica et Cosmochimica Acta on May 5, 2022 PDF (OPEN ACCESS) Update (11 May 2022):…
Artificial weathering of an ordinary chondrite: Recommendations for the curation of Antarctic meteoritesOPEN ACCESS
Matthias van Ginneken, Vinciane Debaille, Sophie Decrée, Steven Goderis, Alan B. Woodland, Penelope Wozniakiewicz, Marleen De Ceukelaire, Thierry Leduc, Philippe Claeys MAPSVersion of Record online: 05 May 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Meteorites are…
Chondritic breccias: An optical microscopic classification
M. Kimura, A. Yamaguchi Polar ScienceIn Press, Journal Pre-proof, Available online 1 May 2022 LINK “Numerous meteorites are breccias, indicating asteroid collisions. Herein we systematically investigate brecciated chondrites to efficiently and quickly classify large numbers…
Determination of olivine fayalite–forsterite composition in ordinary chondrites by X‐ray diffraction
V. E. Di Cecco, B. C. Hyde, K. T. Tait, R. I. Nicklin MAPSFirst Published: 27 April 2022 LINK “Ordinary chondrites account for the majority of the described meteorites on Earth. To expand the toolbox…
Iron-60 in the Early Solar System Revisited: Insights from In Situ Isotope Analysis of Chondritic TroiliteOPEN ACCESS
János Kodolányi, Peter Hoppe, Christian Vollmer, Jasper Berndt, and Maren Müller The Astrophysical Journal, Volume 929, Number 1Published: 18 April 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We measured the nickel isotope composition of troilites from…
Preservation of Terrestrial Microorganisms and Organics Within Alteration Products of Chondritic Meteorites from the Nullarbor Plain, AustraliaOPEN ACCESS
Alastair W. Tait, Siobhan A. Wilson, Andrew G. Tomkins, Jessica L. Hamilton, Emma J. Gagen, Alex I. Holman, Kliti Grice, Louisa J. Preston, David J. Paterson, and Gordon Southam Astrobiology, Vol. 22, No. 4Published Online:…
Unique evidence of fluid alteration in the Kakowa (L6) ordinary chondriteOPEN ACCESS
I. P. Baziotis, C. Ma, Y. Guan, L. Ferrière, S. Xydous, J. Hu, M. A. Kipp, F. L. H. Tissot & P. D. Asimow Scientific Reports, Volume 12, Article number: 5520Published: 12 April 2022 LINK…
Investigating S-type asteroid surfaces through reflectance spectra of ordinary chondritesOPEN ACCESS
J. Eschrig, L. Bonal, M. Mahlke, B. Carry, P.Beck, J. Gattacceca IcarusIn Press, Journal Pre-proof, Available online 3 April 2022 LINK Update (22 June 2022): PDF (OPEN ACCESS) “Highlights • Reflectance spectroscopy• Petrography• Unequilibrated Ordinary…
Accretion regions of meteorite parent bodies inferred from a two-endmember isotopic mixing model
Kang Shuai, Hejiu Hui, Liyong Zhou, Weiqiang Li Monthly Notices of the Royal Astronomical SocietyPublished: 29 March 2022 LINK “The diverse isotopic anomalies of meteorites demonstrate that the protoplanetary disk was composed of components from…
Petrochemistry and Oxygen Isotope of Karimati (L5) Chondrite, a 2009 Fall in Uttar Pradesh, India
D. Ray, D. K. Panda, G. Arora, S. Ghosh, S. V. S. Murty & S. Chakraborty Journal of the Geological Society of India, Volume 98, pages 323–328Published: 28 March 2022 LINK “Karimati, a single stone,…
A micrometeorite from a stony asteroid identified in Luna 16 soil
S. I. Demidova, M. J. Whitehouse, R. Merle, A. A. Nemchin, G. G. Kenny, F. Brandstätter, Th. Ntaflos & I. Dobryden Nature AstronomyPublished: 21 March 2022 LINK “Despite the intense cratering history of the Moon,…
Characterization of the “Ramón de las Yaguas” meteorite, fell in eastern CubaOPEN ACCESS
Rene Yasmany Cobas Torres, Deysy De La Nuez Colón, Mercedes Torres La Rosa, José García, Manuel A. Iturralde-Vinent, Enrique D Arango Arias Published online: February 2022 LINK (OPEN ACCESS)PDF (DOWNLOAD) “The meteorite that fell in…
Connecting Asteroids and Meteorites with visible and near-infrared spectroscopyOPEN ACCESS
Francesca E. DeMeo, Brian J. Burt, Michaël Marsset, David Polishook, Thomas H. Burbine, Benoît Carry, Richard P. Binzel, Pierre Vernazza, Vishnu Reddy, Michelle Tang, Cristina A. Thomas, Andrew S. Rivkin, Nicholas A. Moskovitz, Stephen M….
On the cooling rate evolution of asteroid fragments
Jialong Ren, Marc A. Hesse, Michael P. Lucas, Nicholas Dygert IcarusIn Press, Journal Pre-proof, Available online 24 February 2022 LINK “Highlights • Conductive cooling rate at constant temperature declines as 1/time.• High-temperature cooling rate data…
Impact dynamics of the L chondrites’ parent asteroid
Marine Ciocco, Mathieu Roskosz, Béatrice Doisneau, Olivier Beyssac, Smail Mostefaoui, Laurent Remusat, Hugues Leroux, Matthieu Gounelle MAPSVersion of Record online: 24 February 2022 LINK “The dynamics of collisional events have been studied for three highly…
Arpu Kuilpu: An H5 from the Outer Main BeltOPEN ACCESS
Patrick M. Shober, Hadrien A. R. Devillepoix, Eleanor K. Sansom, Martin C. Towner, Martin Cupák, Seamus L. Anderson, Gretchen Benedix, Lucy Forman, Phil A. Bland, Robert M. Howie, Benjamin A. D. Hartig, Matthias Laubenstein, Francesca…
Trajectory, recovery, and orbital history of the Madura Cave meteoriteOPEN ACCESS
Hadrien A. R. Devillepoix, Eleanor K. Sansom, Patrick Shober, Seamus L. Anderson, Martin C. Towner, Anthony Lagain, Martin Cupák, Philip A. Bland, Robert M. Howie, Trent Jansen-Sturgeon, Benjamin A. D. Hartig, Marcin Sokolowski, Gretchen Benedix,…
High precision 26Al-26Mg chronology of chondrules in unequilibrated ordinary chondrites: evidence for restricted formation ages
Guillaume Siron, Kohei Fukuda, Makoto Kimura, Noriko T. Kita Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 14 February 2022 LINK “Chondrules in ordinary chondrites are considered to form in high density environments, likely…
The Famenin fall and other ordinary chondrites intermediate between H and L groupsOPEN ACCESS
Hamed Pourkhorsandi, Jérôme Gattacceca, Pierre Rochette, Thomas Smith, Lydie Bonal, Massimo D’Orazio, Bertrand Devouard, Corinne Sonzogni, Vinciane Debaille Meteoritics & Planetary Scienceaccepted for publication, February 2022 LINK (OPEN ACCESS)PDF (DOWNLOAD) and PDF (OPEN ACCESS) Update…
A contemporary view of the ordinary chondrite boot I: Band parameter analysis dependency
Lucas T. McClure, Sean S. Lindsay IcarusIn Press, Journal Pre-proof, Available online 14 February 2022 LINK “Highlights • The Spectral Analysis Routine for Asteroids (SARA) performed band parameter analyses on spectral data from 167 ordinary…
A contemporary view of the ordinary chondrite boot II: Mineralogical variation of S-type asteroids
Lucas T. McClure, Sean S. Lindsay IcarusIn Press, Journal Pre-proof, Available online 12 February 2022 LINK “Highlights • The Spectral Analysis Routine for Asteroids determined band parameters for a suite of 46 NEAs.• Mineralogical determinations…
The distribution of the desert meteorites in China and their classification
Yan Fan, Shijie Li, Shen Liu, Hao Peng, Guangming Song, Thomas Smith MAPSVersion of Record online: 07 February 2022 LINK “In recent years, numerous meteorites have been collected in desert areas in northern and western…
Blaubeuren, Cloppenburg, and Machtenstein—Three recently recognized H-group chondrite finds in Germany with distinct terrestrial ages and weathering effectsOPEN ACCESS
Addi Bischoff, Jakob Storz, Jean-Alix Barrat, Dieter Heinlein, A. J. Timothy Jull, Silke Merchel, Andreas Pack, Georg Rugel MAPSVersion of Record online: 17 January 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “In the last 7 years, three…
Northwest Africa 6486: Record of large impact events and fluid alteration on the L chondrite asteroid
C. A. Lorenz, E. V. Korochantseva, M. A. Ivanova, J. Hopp, I. A. Franchi, M. Humayun, M. O. Anosova, S. N. Teplyakova, M. Trieloff MAPSVersion of Record online: 05 January 2022 LINK “We report the…
Diverse space weathering effects on asteroid surfaces as inferred via laser irradiation of meteoritesOPEN ACCESS
P. Zhang, K. Tai, Y. Li, J. Zhang, C. Lantz, T. Hiroi, M. Matsuoka, S. Li, Y. Lin, Y. Wen, H. Han and X. Zeng A&A 659, A78 (2022)Received 5 November 2021 / Accepted 30…
Meteorite and bright fireball records from CubaOPEN ACCESS
Yasmani Ceballos Izquierdo, Johanset Orihuela León, Gabriel Gonçalves Silva, Marcelo Zurita, Daniela Cardozo Mourão, Henry Delgado Manzor Mineralia Slovaca53, 2 (2021), 131 – 145 PDF (OPEN ACCESS)PDF (alternative download) “This paper provides a comprehensive catalog…
Oxygen isotope systematics of chondrules in Rumuruti chondrites: Formation conditions and genetic link with ordinary chondrites
Maxence Regnault, Yves Marrocchi, Maxime Piralla, Johan Villeneuve, Valentina Batanova, Nicolas Schnuriger, Emmanuel Jacquet MAPSVersion of Record online: 30 December 2021 LINK “Rumurutiites (R chondrites) are rare, highly oxidized chondrites belonging to the noncarbonaceous superclan…
Complex diagnostics of ordinary chondrites Markovka, Polujamki, Sayh al Uhaymir 001, Dhofar 020, and Jiddat al Harasis 055 by X-ray techniques and Mössbauer spectroscopy
Liubov V. Guda, Antonina N. Kravtsova, Stanislav P. Kubrin, Alexander A. Guda, Mikhail I. Mazuritskiy, Andrei A. Tereshchenko, Yuri V. Popov, Alexander V. Soldatov Meteoritics & Planetary ScienceVersion of Record online: 20 December 2021 LINK…
Combining Micro-Raman Spectroscopy and Scanning Electron Microscopy Mapping: A Stony Meteorite StudyOPEN ACCESS
Maya Musa, Riccardo Rossini, Daniela Di Martino, Maria Pia Riccardi, Massimiliano Clemenza, Giuseppe Gorini Materials 2021, 14(24), 7585 LINK (OPEN ACCESS)PDF (DOWNLOAD) “Meteorite characterisation represents a privileged and unique opportunity to increase our knowledge about…
4M method – new application of Mössbauer spectroscopy to classification of meteorites. How it works?OPEN ACCESS
Jolanta Gałązka-Friedman, Martyna Jakubowska, Marek Woźniak, Patrycja Bogusz, Łukasz Karwowski & Przemysław Duda Hyperfine Interactions, Volume 242, Article number: 55 (2021) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “4M method is a new application of Mössbauer spectroscopy…
Can Mӧssbauer methods of classifying ordinary chondrites help to identify non-representative samples of these meteorites?OPEN ACCESS
Martyna Jakubowska, Jolanta Gałązka-Friedman, Marek Woźniak, Patrycja Bogusz, Łukasz Karwowski & Przemysław Duda Hyperfine Interactions, Volume 242, Article number: 50 (2021), Published: 04 December 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Mössbauer spectra of nonweathered ordinary…
New evidence for wet accretion of inner solar system planetesimals from meteorites Chelyabinsk and BenenitraOPEN ACCESS
Ziliang Jin, Maitrayee Bose, Tim Lichtenberg, Gijs Mulders accepted for publication in The Planetary Science Journal PDF (OPEN ACCESS) Update (28 December 2021): LINK (OPEN ACCESS) / PDF (OPEN ACCESS)The Planetary Science Journal, Volume 2,…
Processes and temperatures of FGR formation in chondrites
P-M. Zanetta, C. Le Guillou, H. Leroux, B. Zanda, R. Hewins, G. Bellino Geochimica et Cosmochimica ActaAvailable online 19 November 2021 LINK “In order to understand the nature of the dust that accreted onto chondrules…
A 187Re-187Os, 87Rb-86Sr, highly siderophile and incompatible trace element study of some carbonaceous, ordinary and enstatite chondrite meteoritesOPEN ACCESS
Nicole Phelan, James M.D. Day, Jasmeet K.Dhaliwal, Yang Liu, Christopher A. Corder, Caleb Strom, Emily Pringle, Nelly Assayag, Pierre Cartigny, Kurt Marti, Frédéric Moynier Geochimica et Cosmochimica ActaAvailable online 19 November 2021 LINK (OPEN ACCESS)…
Electromagnetic characterization of a crushed L-chondrite for subsurface radar investigations of solar system bodies
Alessandro Brin, Sebastian Emanuel Lauro, Barbara Cosciotti, Elisabetta Mattei, Elena Pettinelli IcarusIn Press, Journal Pre-proof, Available online 17 November 2021 LINK “Highlights • Electric and magnetic characterization of an L-chondrite granular sample.• Electric permittivity and…
Understanding asteroidal failure through quasi-static compression testing and 3-D digital image correlation of the Aba Panu (L3) chondrite
M. F. Rabbi, L. A. J. Garvie, D. Cotto-Figueroa, E. Asphaug, K. H. Khafagy, S. Datta, A. Chattopadhyay Meteoritics & Planetary ScienceVersion of Record online: 11 November 2021 LINK “A comprehensive understanding of the mechanical…
Stellar outbursts and chondrite compositionOPEN ACCESS
Min Li, Zhaohuan Zhu, Shichun Huang, Ning Sui, Michail I. Petaev, Jason H. Steffen submitted to ApJL PDF (OPEN ACCESS) “The temperatures of observed protoplanetary disks are not sufficiently high to produce the accretion rate…
Middle Ordovician astrochronology decouples asteroid breakup from glacially-induced biotic radiationsOPEN ACCESS
Jan Audun Rasmussen, Nicolas Thibault & Christian Mac Ørum Rasmussen Nature Communications, Volume 12, Article number: 6430 (2021) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Meso-Cenozoic evidence suggests links between changes in the expression of orbital changes…
Meteorite terrestrial ages in Oman based on gamma spectrometry and sediment dating, focusing on the Ramlat Fasad dense collection areaOPEN ACCESS
Åke V. Rosén, Beda A. Hofmann, Frank Preusser, Edwin Gnos, Urs Eggenberger, Marc Schumann, Sönke Szidat Meteoritics & Planetary ScienceVersion of Record online: 04 November 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We combine the search…
Light noble gas records and cosmic ray exposure histories of recent ordinary chondrite falls
Thomas Smith, Huaiyu He, Shijie Li, P. M. Ranjith, Fei Su, Jérôme Gattacceca, Régis Braucher, ASTER-Team Meteoritics & Planetary ScienceVersion of Record online: 04 November 2021 LINK “We measured noble gas concentrations and isotopic ratios…
Xenoliths in ordinary chondrites and ureilites: Implications for early solar system dynamics
Cyrena Anne Goodrich, David A. Kring, Richard C. Greenwood Meteoritics & Planetary ScienceFirst Published: 2 November 2021 LINK “Foreign clasts (xenoliths) in meteoritic breccias are a serendipitous source of information about the impact environment in…
Formation of metallic-Cu-bearing mineral assemblages in type-3 ordinary and CO chondrites
Ye Li, Alan E. Rubin, Weibiao Hsu American Mineralogist, November 01, 2021, Vol.106, 1751-1767 LINK “Studies of the new growth and re-distribution of Cu-rich phases in chondrites of different petrologic subtypes can potentially provide insights…
Study of Spectrally Resolved Thermoluminescence in Tsarev and Chelyabinsk Chondrites with a Versatile High-Sensitive SetupOPEN ACCESS
Alexander Vokhmintsev, Ahmed Henaish, Taher Sharshar, Osama Hemeda, Ilya Weinstein Materials 2021, 14 (21), 6518 LINK (OPEN ACCESS)PDF (DOWNLOAD)PDF (OPEN ACCESS) “Thermoluminescence (TL) research provides a powerful tool for characterizing radiation-induced processes in extraterrestrial matter….
Comparison of the 57Fe hyperfine parameters for iron-bearing phases in some undifferentiated and differentiated meteorites
M. I. Oshtrakh & A.A. Maksimova Hyperfine Interactions, Volume 242, Article number: 16Published: 29 October 2021 LINK “A comparison of the 57Fe hyperfine parameters obtained for the iron-bearing phases in some undifferentiated and differentiated meteorites…
Relationship Between the H5 Chondrite Composition, Structure and Mechanical Properties from the Example of NWA 12370 and Pultusk
S. A. Voropaev, I. I. Nugmanov, N. V. Dushenko, T. G. Kuz’mina, A. V. Korochantsev, V. G. Senin, A. A. Eliseev & Yan Jianguo Solar System Research, Volume 55, pages 409–419 (2021)Published: 25 October 2021…
Mineralogy, petrology, and oxygen‐isotope compositions of magnetite ± fayalite assemblages in CO3, CV3, and LL3 chondrites
Alexander N. Krot, Patricia M. Doyle, Kazuhide Nagashima, Elena Dobrică, Michail I. Petaev Meteoritics & Planetary ScienceFirst Published: 20 October 2021 LINK “We report on the mineralogy, petrology, and O-isotope compositions of magnetite and fayalite…
GOLDEN meteorite fall (L/LL5 chondrite, 1270 + 919 g) in Golden, British Colombia, Canada at around 11:33:45-50 pm MDT on 3 October (5:33:45-50 UT, 4 Oct.) 2021
Last update: 4 February 2023 If you have photos or videos (smart phone, security or dashboard camera) of the bolide, please contact: wmpg@groups.uwo.ca (Prof. Peter Brown, Western Meteor Physics Group, Western University, London, Ontario) If…
Natural Fe-bearing aluminous bridgmanite in the Katol L6 chondrite
Sujoy Ghosh, Kishan Tiwari, Masaaki Miyahara, Arno Rohrbach, Christian Vollmer, Vincenzo Stagno, Eiji Ohtani, and Dwijesh Ray PNAS October 5, 2021 118 (40) LINK “Bridgmanite, the most abundant mineral of the Earth’s lower mantle, has…
Novo Mesto meteorite fall – trajectory, orbit, and fragmentation analysis from optical observationsOPEN ACCESS
Denis Vida, Damir Šegon, Marko Šegon, Jure Atanackov, Bojan Ambrožič, Luke McFadden, Ludovic Ferrière, Javor Kac, Gregor Kladnik, Mladen Živčić, Aleksandar Merlak, Ivica Skokić, Lovro Pavletić, Gojko Vinčić, Ivica Ćiković, Zsolt Perkó, Martino Ilari, Mirjana…
Evolution of hematite and/or magnetite iron phases with thermal heating in ordinary chondrites: A generic characteristic
Ambesh Dixit, Beena Bhatia & R P Tripathi Journal of Earth System Science, Volume 130, Article number: 191 (2021) LINK “We used 57Fe Mössbauer spectroscopic measurements on untreated and controlled thermally treated Ararki, Didwana, and…
Kindberg meteorite (233 g, L6) apparently found – bolide at 04:46:47- CET, 19 November 2020, Kindberg, Bruck-Mürzzuschlag, Steiermark, Austria
On 14 September 2021 it was announced in several Austrian media that on 4 July 2021 a 233-gram fragment of a meteorite (L6) was found near Kindberg in Austria. It is supposed to have fallen…
The Ellerslie Meteorite: description and correction to historical find siteOPEN ACCESS
William D. Birch Journal & Proceedings of the Royal Society of New South WalesVol. 154, 12-23, Part 1, June 2021 PDF (OPEN ACCESS) “The 10.2 kg Ellerslie meteorite was donated to the National Museum of…
The Sn isotope composition of chondrites: implications for volatile element depletion in the Solar System
Xueying Wang, Caroline Fitoussi, Bernard Bourdon, Kevin Righter, Quentin Amet Geochimica et Cosmochimica ActaAvailable online 19 August 2021 LINK “The origin of volatile element depletion in terrestrial planets and meteorites relative to a solar composition…
Conditions of chondrule formation in ordinary chondrites
Maxime Piralla, Johan Villeneuve, Valentina Batanova, Emmanuel Jacquet, Yves Marrocchi Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 16 August 2021 LINK “Chondrules are sub-millimetric spheroids that are ubiquitous in chondrites and whose formation…
Petrology and mineralogy of an igneous clast in the Northwest Africa 1685 (LL4) chondrite: Comparison with alkali-rich igneous clasts in LL-chondritic breccias
Takafumi Niihara, Tatsunori Yokoyama, Tomoko Arai, Keiji Misawa Meteoritics & Planetary ScienceFirst Published: 26 July 2021 LINK “We have conducted petrological and mineralogical studies on an igneous clast in the Northwest Africa (NWA) 1685 (LL4)…
Identification and pairing reassessment of unequilibrated ordinary chondrites from four Antarctic dense collection areas
Kevin Righter, John Schutt, Nicole Lunning, Ralph Harvey, James Karner Meteoritics & Planetary ScienceFirst Published: 24 July 2021 LINK “New analyses of Cr2O3 contents of olivines from type II chondrules in unequilibrated chondrites (UOC) from…
IIE irons: Origin, relationship to ordinary chondrites, and evidence for siderophile-element fractionations caused by chondrule formation
Alan E. Rubin Meteoritics & Planetary ScienceVersion of Record online: 19 July 2021 LINK “IIE irons were derived from chondritic precursors that were the most reduced ordinary chondrites. The bulk chemical (e.g., Ir/Ni, Ir/Au, Au/Ni,…
‘Ramón de las Yaguas’ (prov.), apparent meteorite fall at ~16.56 UTC on 10 July 2021 (OC (‘L6’?), 2.76 kg) near El Ramón de las Yaguas, Santiago de Cuba province, Cuba
Last update: 4 March 2022 On 16 July the Ciencia Tecnología y Medio Ambiente (CITMA) of Cuba reported that on 10 July a 2.76-kilogram meteorite (13.7 cm x 12.9 cm x 9.8 (11) cm) was…
The astrophysical context of collision processes in meteorites
Yves Marrocchi, Marco Delbo, Matthieu Gounelle Meteoritics & Planetary ScienceVersion of Record online: 09 July 2021 LINK “Chondrites are leftover solids from the early evolution of the solar protoplanetary disk that never experienced melting since…
Minimum perihelion distances and associated dwell times for near-Earth asteroidsOPEN ACCESS
Athanasia Toliou, Mikael Granvik, Georgios Tsirvoulis Monthly Notices of the Royal Astronomical Society, stab1934Published: 08 July 2021 LINK PDF (OPEN ACCESS) (preprint) “The observed near-Earth asteroid population contains very few objects with small perihelion distances,…
Tellurium isotope cosmochemistry: Implications for volatile fractionation in chondrite parent bodies and origin of the late veneer
Jan L. Hellmann, Timo Hopp, Christoph Burkhardt, Harry Becker, Mario Fischer-Gödde, Thorsten Kleine Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 6 July 2021 LINK “Tellurium stable isotope compositions and abundances (δ128/126Te relative to…
Arpu Kuilpu, an Ordinary Chondrite on a Jupiter Family Cometary Orbit
Towner M. C., Sansom E. K., Devillepoix H. A. R., Cupak M., Bland P. A., Anderson S. L., Shober P. M. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6206) PDF We describe…
CAIs in Ordinary and Enstatite Chondrites
Dunham E. T. *, Liu M.-C., Matsuda N., McKeegan K. D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6133) PDF NC CAIs / Very small and rare, unlike / CC CAIs.
Ungrouped Chondrite Chug-Chug 086
Ivanova M. A., Zinovieva N. G., Franchi I. A., Lorenz C. A., Teplyakova S. N. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6108) PDF A new ungrouped chondrite Chug-Chug 086 has affinities…
Discovery of High-Pressure Polymorphs in the Recent Fall of Viñales (L6 Ordinary Chondrite): Implications for Collisions on its Parent Body
Baziotis I., Xydous S., Papoutsa A., Hu J., Ma C., Ferrière L., Klemme S., Berndt J., Asimow P. D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6115) PDF Viñales, a L6 ordinary…
Raman Spectroscopy of Freshy Fallen Mahadeva (H5/6) Chondrite
Panda D. K., Shukla A. D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6156) PDF Study of a new chondrite meteorites always shades some insights on the understanding of the records of…
Madura Cave: A New Meteorite Fall Delivered from an Aten Orbit
Devillepoix H. A. R., Anderson S., Sansom E. K., Lagain A., Towner M. C., Bland P. A., Howie R. M., Cupak M., Benedix G. K., Forman L. V., Shober P., Hartig B. A. D. 84th…
Mean Atomic Weight, Grain Density, and Porosity of Cavezzo Chondrite
Szurgot M. A. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6009) PDF Mean atomic weight (Amean), grain density (dgr), and porosity (P) of anomaleous Cavezzo L5 chondrite were predicted. It was shown…
Reanalysis of the 24 November 1970 Fireball
Gritsevich M., Moilanen J., Visuri J., Heinlein D., Schweidler F., Flohrer J., Oberst J. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6216) PDF We demonstrate that the EN241170 fireball was the fall…
Cavezzo—The double face of a meteorite: Mineralogy, petrography, and geochemistry of a very unusual chondriteOPEN ACCESS
Giovanni Pratesi, Vanni Moggi Cecchi, Richard C. Greenwood, Ian A. Franchi, Samantha J. Hammond, Mario Di Martino, Dario Barghini, Carla Taricco, Albino Carbognani, Daniele Gardiol Meteoritics & Planetary ScienceVersion of Record online: 23 June 2021…
Shock‐Induced Incongruent Melting of Olivine in Kamargaon L6 Chondrite
Kishan Tiwari, Sujoy Ghosh, Masaaki Miyahara, Dwijesh Ray Geophysical Research LettersFirst Published: 8 June 2021 LINK “In this study, we report for the first-time shock-induced incongruent melting of olivine in an ordinary chondrite. Several olivine…
Exogenous copper sulfide in returned asteroid Itokawa regolith grains are likely relicts of prior impacting bodyOPEN ACCESS
Katherine D. Burgess & Rhonda M. Stroud Communications Earth & Environment, Volume 2, Article number: 115 (2021) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Samples from asteroid 25143 Itokawa returned by the Hayabusa mission have been identified…
Geochemistry and Cosmochemistry of potassium stable isotopes
Kun Wang, Weiqiang Li, Shilei Li, Zhen Tian, Piers Koefoed, Xin-Yuan Zheng INVITED REVIEW GeochemistryIn Press, Journal Pre-proof, Available online 9 June 2021 LINK “Stable potassium isotopes are one of the emerging non-traditional isotope systems…
Applications of Mössbauer Spectroscopy in Meteoritical and Planetary Science, Part I: Undifferentiated MeteoritesOPEN ACCESS
Alevtina A. Maksimova, Michael I. Oshtrakh Minerals 2021, 11(6), 614 LINK (OPEN ACCESS)PDF (download) “Mössbauer (nuclear γ-resonance) spectroscopy is a powerful technique that is actively used in various fields, from physics and chemistry to biology…
Asteroid break-ups and meteorite delivery to Earth the past 500 million yearsOPEN ACCESS
Fredrik Terfelt and Birger Schmitz PNAS June 15, 2021 118 (24) LINK (OPEN ACCESS)PDF (OPEN ACCESS) Supplementary Information “The meteoritic material falling on Earth is believed to derive from large break-up or cratering events in…
Raman spectra of the Markovka chondrite (H4)
Sergey Voropaev, Ute Böttger, Sergey G. Pavlov, Franziska Hanke, Dmitri Petukhov Raman SpectroscopyFirst published: 31 May 2021 LINK “Raman spectroscopy and scanning electron microscopy methods were used to study the fragment of the Markovka (H4…
The Classification of Parauapebas Meteorite: Petrological, Mineralogical and Elemental Compositions and Physical Properties
Amanda A. Tosi, Maria Elizabeth Zucolotto, Wania Wolff, Julio C. Mendes, Sergio Suárez, Pablo Daniel Pérez, Diana P.P. Andrade Planetary and Space ScienceAvailable online 25 May 2021 LINK “Highlights Parauapebas meteorite classified as an H…
Graphite in ureilites, enstatite chondrites, and unique clasts in ordinary chondrites – Insights from the carbon-isotope compositionOPEN ACCESS
Jakob Storz, Thomas Ludwig, Addi Bischoff, Winfried H. Schwarz, Mario Trieloff Geochimica et Cosmochimica ActaAvailable online 21 May 2021 LINK (OPEN ACCESS) “Carbon is of fundamental interest for constraining the volatile element inventory of terrestrial…
Study of Fischer-Tropsch Type reactions on chondritic meteoritesOPEN ACCESS
Victoria Cabedo, Jordi Llorca, Josep Maria Trigo-Rodríguez, Albert Rimola Accepted for publication in Astronomy and Astrophysics PDF (OPEN ACCESS) “How simple organic matter appeared on Earth and the processes by which it transformed into more…
Isotope Systematics of Presolar Silicate Grains: New Insights from Magnesium and Silicon
Peter Hoppe, Jan Leitner, János Kodolányi, and Christian Vollmer The Astrophysical Journal, Volume 913, Number 1 LINK “We report on Mg and Si isotope data of 86 presolar silicate grains identified through NanoSIMS oxygen ion…
The effects of Antarctic alteration and sample heterogeneity on Sm-Nd and Lu-Hf systematics in H chondrites
Ryoga Maeda, Steven Goderis, Vinciane Debaille, Hamed Pourkhorsandi, Geneviève Hublet, Philippe Claeys Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 12 May 2021 LINK “Long-lived radioactive isotope systematics, such as Sm-Nd and Lu-Hf, are…
Characterization of Exogenic Boulders on Near-Earth Asteroid (101955) Bennu from OSIRIS-REx Color ImagesOPEN ACCESS
Lucille Le Corre, Vishnu Reddy, William F. Bottke, Daniella N. DellaGiustina, Keara Burke, Jennifer Nolau, Robin B. Van Auken, Dathon R. Golish, Juan Sanchez, Jian-Yang Li, Christian d’Aubigny, Bashar Rizk, Dante Lauretta PDF (OPEN ACCESS)…
Noble gases in cluster chondrite clasts and their host brecciasOPEN ACCESS
Kim Müsing, Henner Busemann, Liliane Huber, Colin Maden, My E. I. Riebe, Rainer Wieler, Knut Metzler Meteoritics & Planetary ScienceVersion of Record online: 09 April 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We measured noble gases…
A new method for determining the petrologic type of unequilibrated ordinary chondrites that can be applied to asteroids
Derek Sears, Daniel Ostrowski, Heather Smith, Adonay Sissay, Mihir Trivedi IcarusIn Press, Journal Pre-proof, Available online 25 March 2021 LINK “Highlights • Clinopyroxene in type 3 ordinary chondrites is determined from IR spectra.• This enables…
Laboratory investigation into the dielectric properties of an L-chondrite (NWA 12857)
Barbara Cosciotti, Sebastian Emanuel Lauro, Francesco Gabbai, Elisabetta Mattei, Federico Di Paolo, Giovanni Pratesi, Elena Pettinelli IcarusIn Press, Journal Pre-proof, Available online 16 March 2021 LINK “Highlights • Dielectric characterization of an L-chondrite solid sample.•…
Highly volatile element (H, C, F, Cl, S) abundances and H isotopic compositions in chondrules from carbonaceous and ordinary chondrites
Kei Shimizu, Conel M. O’D. Alexander, Erik H. Hauri, Adam R. Sarafian, Larry R. Nittler, Jianhua Wang, Steven D.Jacobsen, Ruslan A. Mendybaev Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 10 March 2021 LINK…
Benford’s law: Applications to ordinary‐chondrite mass distributions
Alan E. Rubin Meteoritics & Planetary ScienceVersion of Record online: 09 March 2021 LINK “For ordinary‐chondrite (OC) mass distributions, Benford’s law applies to the set of individual objects that survive intact on the Earth’s surface…
Molybdenum Isotope Dichotomy in Meteorites Caused by s-Process Variability
Thomas Stephan and Andrew M. Davis The Astrophysical Journal, Volume 909, Number 1Published: 1 March 2021 LINK “Molybdenum isotopes measured in most individual presolar silicon carbide grains are dominated by s-process contributions from the helium…
The Mechanical Properties of Chelyabinsk LL5 Chondrite Under Compression and TensionOPEN ACCESS
Dmitry Zaytsev, Elijah N. Borodin, A. E. Dudorov & P. Panfilov Earth, Moon, and Planets, Volume 125, Article number: 2 (2021) LINK (OPEN ACCESS)PDF (DOWNLOAD) “The mechanical properties of Chelyabinsk LL5 chondrite (Chelyabinsk meteorite) were…
Mineralogy, petrology, geochemistry, and chronology of the Murrili (H5) meteorite fall: The third recovered fall from the Desert Fireball Network
S. Anderson, G. K. Benedix, L. V. Forman, L. Daly, R. C. Greenwood, I. A. Franchi, J. M. Friedrich, R. Macke, S. Wiggins, D. Britt, J. M. Cadogan, M. M. M. Meier, C. Maden, H….
Geochemical Constraints on Potential UOC Chondrule Genesis by Hypervelocity Impact Vapor Plumes and Likely Precursor Sources
Sheikh D., Humayun M. 52nd Lunar and Planetary Science Conference (2021), Abstract #1279 PDF “Most UOC chondrules analyzed exhibit Ce, and Eu anomalies, implying a chondrule forming process that began oxidized but went reducing, consistent…
