Coordinated chemical and microstructural analyses of presolar silicate grains from AGB/RGB stars and supernovae in the CO3.0 chondrite Dominion Range 08006
Laura B. Seifert, Pierre Haenecour, Thomas J. Zega MAPSVersion of Record online: 11 April 2022 LINK “We report the structural and chemical analyses of six presolar silicate grains identified in situ in the CO3.0 carbonaceous…
Hydrogen Burning of 29Si and Its Impact on Presolar Stardust Grains from Classical NovaeOPEN ACCESS
Lori Downen, Christian Iliadis, Art Champagne, Thomas Clegg, Alain Coc, and Jordi José The Astrophysical Journal, Volume 928, Number 2 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Presolar stardust grains found in primitive meteorites are believed to…
Spinel in CV chondrules: Investigating precursor legacy and chondrule thermal histories
Nicolas Schnuriger, Camille Cartier, Johan Villeneuve, Valentina Batanova, Maxence Regnault, Yves Marrocchi MAPSVersion of Record online: 01 April 2022 LINK “In carbonaceous chondrites, Mg-spinel (MgAl2O4) grains are ubiquitous in refractory inclusions but rarely reported in…
Formation of chondrule fine-grained rims from local nebular reservoirs
Gabriel A. Pinto, Yves Marrocchi, Emmanuel Jacquet, Felipe Olivares MAPSVersion of Record online: 31 March 2022 LINK “Chondrules are commonly surrounded by fine-grained rims (FGRs) whose origin remains highly debated; both nebular and parent body…
Smooth rims in Queen Alexandra Range (QUE) 99177: Fluid–chondrule interactions and clues on the geochemical conditions of the primordial fluid that altered CR carbonaceous chondrites
Marina Martínez, Adrian J. Brearley Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 19 March 2022 LINK “Queen Alexandra Range (QUE) 99177 is one of the least altered CR carbonaceous chondrite known, with mineralogical…
In-situ O-isotope analysis of relict spinel and forsterite in small (<200μm) Antarctic micrometeorites – samples of chondrules & CAIs from carbonaceous chondrites
N.G. Rudraswami, M.D. Suttle, Y. Marrocchi, S. Taylord, J. Villeneuve Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 19 March 2022 LINK “We report high-precision secondary ion mass spectrometer triple oxygen isotope systematics (95…
Comparison between Core-collapse Supernova Nucleosynthesis and Meteoric Stardust Grains: Investigating Magnesium, Aluminium, and ChromiumOPEN ACCESS
Jacqueline den Hartogh, Maria K. Petö, Thomas Lawson, Andre Sieverding, Hannah Brinkman, Marco Pignatari, and Maria Lugaro The Astrophysical Journal, Volume 927, Number 2Published: 2022 March 17 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Isotope variations of…
Presolar grain dynamics: creating nucleosynthetic variations through a combination of drag and viscous evolutionOPEN ACCESS
Mark A. Hutchison, Jean-David Bodénan, Lucio Mayer, Maria Schönbächler accepted for publication in MNRAS PDF (OPEN ACCESS) Update (21 March 2022): LINK “Meteoritic studies of solar system objects show evidence of nucleosynthetic heterogeneities that are…
Titanium isotope systematics of refractory inclusions: Echoes of molecular cloud heterogeneity
Quinn R. Shollenberger, Jan Render, Michelle K. Jordan, Kaitlyn A. McCain, Samuel Ebert, Addi Bischoff, Thorsten Kleine, Edward D.Young Geochimica et Cosmochimica ActaAvailable online 5 March 2022 LINK “Calcium-aluminum-rich inclusions (CAIs) are highly refractory objects…
Sr distribution as proxy for Ca distribution at depth in SXRF analysis of mm-sized carbonaceous chondrites: Implications for asteroid sample return missionsOPEN ACCESS
B. J. Tkalcec, P. Tack,E. De Pauw, B. Vekemans, T. Nakamura, J. Garrevoet, G. Falkenberg, L. Vincze, F. E. Brenker MAPSVersion of Record online: 02 March 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Reliable identification of…
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…
Uniform initial 10Be/9Be inferred from refractory inclusions in CV3, CO3, CR2, and CH/CB chondrites
E.T. Dunham, M. Wadhwa, S.J. Desch, M.C. Liu, K. Fukuda, N. Kita, A.T. Hertwig, R.L. Hervig, C. Defouilloy, S.B. Simon, J.Davidson, D.L.Schrader, Y. Fujimoto Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 7 February…
Brecciation on the Aguas Zarcas Parent Body Revealed Using Clast Petrofabrics
Floyd C. J. * Macente A. Daly L. Hanna R. D. Lee M. R. PDF LPSC 2022 abstract [#1470] “Chondrules in chondrites / What secrets are they hiding / Fabrics reveal all.”
Noble Gases in the Very Primitive CM Chondrites Asuka 12085 and 12236 — Filling the Gap
Pacnik H. Eckart L. M. Krietsch D. Maden C. Busemann H. * PDF LPSC 2022 abstract [#1987] “Noble gases confirm that A-12085 and 12236 are very primitive CMs; the accreted matrix contains Ar-rich grains that…
Carbonaceous Presolar Grains in Asteroid Ryugu
Nittler L R. Barosch J. De Gregorio B. T. Stroud R. M. Yabuta H. et al. PDF LPSC 2022 abstract [#1423] “Dust made of carbon / Older than Sun, found in / Ryugu samples..”
Oxygen-Isotope Compositions of Chondrules in Metal-Rich Carbonaceous Chondrites Fountain Hills and Sierra Gorda 013
Krot A. N. Nagashima K. Ivanova M. A. Lauretta D. S. Libourel G. et al. PDF LPSC 2022 abstract [#1301] “O-isotope compositions of chondrules in Fountain Hills and Sierra Gorda 013 are similar to those…
Mineralogy, Petrography, and Presolar Components of the Chwichiya 002 Ungrouped Chondrite
Smith R. L. Haenecour P. Barnes J. J. Dominik K. Neuman M. et al. PDF LPSC 2022 abstract [#2873] “We constrained the mineralogy, petrography, and elemental composition of Chwichiya 002 in preparation for a NanoSIMS…
Determination of the initial hydrogen isotopic composition of the solar system
J. Aléon, D. Lévy, A. Aléon-Toppani, H. Bureau, H. Khodja & F. Brisset Nature Astronomy (2022)Published: 03 February 2022 LINK Supplementary information “The initial isotopic composition of water in the Solar System is of paramount…
Microstructural and Chemical Investigations of Presolar Silicates from Diverse Stellar EnvironmentsOPEN ACCESS
Manish N. Sanghani, Luc Lajaunie, Kuljeet Kaur Marhas, William D. A. Rickard, Silver Sung-Yun Hsiao, Zan Peeters, Hsien Shang, Der-Chuen Lee, José. J. Calvino, and Martin Bizzarro The Astrophysical Journal, Volume 925, Number 2 LINK…
The Formation of Type B CAIs: Evolution from Type A CAIs
G.J. MacPherson, A.N. Krot, N.T. Kita, E.S. Bullock, K. Nagashima, T. Ushikubo, M.A.Ivanova Geochimica et Cosmochimica ActaAvailable online 7 January 2022 LINK “Five Type A CAIs from three CV3 chondrites (Vigarano, Northwest Africa 3118, Allende),…
A temporal shift of chondrule generation from the inner to outer Solar System inferred from oxygen isotopes and Al-Mg chronology of chondrules from primitive CM and CO chondrites
Kohei Fukuda, Makoto Kimura, Naotaka Tomioka, Guillaume Siron, Takayuki Ushikubo, Noël Chaumard, Andreas T. Hertwig, Noriko T. Kita Geochimica et Cosmochimica ActaAvailable online 31 December 2021 LINK “Deciphering the spatial and temporal evolution of chondrules…
Oxygen isotope variations in Mg-rich olivines from type I chondrules in carbonaceous chondrites
Guy Libourel, Kazuhide Nagashima, Marc Portail, Alexander N. Krot Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 31 December 2021 LINK “Using high-resolution cathodoluminescence (HR-CL) panchromatic imaging for the location of high-precision oxygen three-isotope…
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…
Refractory inclusions as Type IA chondrule precursors: Constraints from melting experiments
Scott A. Whattam, Roger H. Hewins, Jieun Seo, Bertrand Devouard Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 29 December 2021 LINK “The formation of chondrules involved major processes in the protoplanetary disk and…
Testing models for the compositions of chondrites and their components: II. CR chondrites
Andrea Patzer, Emma S. Bullock, Conel M. O’D. Alexander Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 24 December 2021 LINK “Knowing how the major chondritic components evolved and what their initial compositions were…
An exploration of whether Earth can be built from chondritic components, not bulk chondrites
Conel M. O’D. Alexander Geochimica et Cosmochimica ActaAvailable online 17 December 2021 LINK “Here, two of a range of possible models are explored that assume that: (i) two of the main chondritic components (chondrules and…
Effect of Hydrogen Gas Pressure on Calcium–Aluminum-rich Inclusion Formation in the Protosolar Disk: a Laboratory Simulation of Open-system Melt CrystallizationOPEN ACCESS
Michiru Kamibayashi, Shogo Tachibana, Daiki Yamamoto, Noriyuki Kawasaki, and Hisayoshi Yurimoto The Astrophysical Journal Letters, Volume 923, Number 1 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Calcium–aluminum-rich inclusions (CAIs) are the oldest materials that formed in the…
Beckettite, Ca2V6Al6O20, a new mineral in a Type A refractory inclusion from Allende and clues to processes in the early solar system
Chi Ma, Alexander N. Krot, Julie Paque, Oliver Tschauner, Kazuhide Nagashima Meteoritics & Planetary ScienceVersion of Record online: 07 December 2021 LINK “Beckettite (Ca2V6Al6O20; IMA 2015-001) is a newly discovered refractory mineral, occurring as micrometer-sized…
Evaluation of the classification of presolar silicon carbide grains using consensus clustering with resampling methods: an assessment of the confidence of grain assignments
Grethe Hystad, Asmaa Boujibar, Nan Liu, Larry R Nittler, Robert M Hazen Monthly Notices of the Royal Astronomical Society, stab3478Published: 03 December 2021 LINK “We report the use of several cluster analysis techniques to evaluate…
Imprint of chondrule formation on the K and Rb isotopic compositions of carbonaceous meteoritesOPEN ACCESS
Nicole X. Nie, Xin-Yang Chen, Timo Hopp, Justin Y. Hu, Zhe J. Zhang, Fang-Zhen Teng, Anat Shahar and Nicolas Dauphas Science Advances • 1 Dec 2021 • Vol 7, Issue 49 LINK (OPEN ACCESS)PDF (OPEN…
Investigation of Dynamics of Heat Propagation in Meteorite Matter and Its Influence on Geometric Features of Tracks of Nuclei in Olivine Crystals from Meteorites
Than Naing Soe, N. G. Polukhina & N. I. Starkov Physics of Atomic Nuclei, Volume 84, pages 643–648 (2021) LINK “The dynamics of heating of a meteorite that travels through the Earth’s atmosphere is studied….
Oxygen and Aluminum-Magnesium Isotopic Systematics of Presolar Nanospinel Grains from CI Chondrite OrgueilOPEN ACCESS
Nan Liu, Nicolas Dauphas, Sergio Cristallo, Sara Palmerini, Maurizio Busso Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 26 November 2021 LINK PDF (OPEN ACCESS) “Presolar oxide grains have been previously divided into several…
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…
Nanoscale Infrared Characterization of Dark Clasts and Fine-Grained Rims in CM2 Chondrites: Aguas Zarcas and Jbilet Winselwan
Mehmet Yesiltas, Timothy D. Glotch, Melike Kaya ACS Earth and Space ChemistryPublication Date: November 16, 2021 LINK “Carbonaceous chondrites are among the most primitive meteorites that escaped extreme temperatures and melting in their parent bodies…
Dependence of the initial internal structure of chondrule rim on dust size distribution
Hiroaki Kaneko, Sota Arakawa, Taishi Nakamoto IcarusAvailable online 10 November 2021 LINK “Coarse objects in chondrites such as chondrules and CAIs are mostly coated with fine-grained rims (FGRs). FGRs can be formed on the surface…
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) Update (13 November 2023): The Astrophysical Journal, Volume 958, Number 1 LINK (OPEN ACCESS)PDF (OPEN…
Widespread glasses generated by cometary fireballs during the late Pleistocene in the Atacama Desert, ChileOPEN ACCESS
Peter H. Schultz, R. Scott Harris, Sebastián Perroud, Nicolas Blanco, Andrew J. Tomlinson Geology (2021)November 02, 2021 LINK (OPEN ACCESS) “Twisted and folded silicate glasses (up to 50 cm across) concentrated in certain areas across…
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…
Presolar Grain Isotopic Ratios as Constraints to Nuclear and Stellar Parameters of Asymptotic Giant Branch Star Nucleosynthesis
Sara Palmerini, Maurizio Busso, Diego Vescovi, Eugenia Naselli, Angelo Pidatella, Riccardo Mucciola, Sergio Cristallo, David Mascali, Alberto Mengoni, Stefano Simonucci et al The Astrophysical Journal, Volume 921, Number 1 LINK “Recent models for evolved low-mass…
Addendum: Meteoritic evidence for a Ceres-sized water-rich carbonaceous chondrite parent asteroidOPEN ACCESS
V. E. Hamilton, C. A. Goodrich, A. H. Treiman, H. C. Connolly Jr, M. E. Zolensky & M. H. Shaddad Nature AstronomyPublished: 25 October 2021 LINK Addendum to Nature Astronomy Meteoritic evidence for a Ceres-sized…
Dependence of the initial internal structure of chondrule rim on dust size distributionOPEN ACCESS
Hiroaki Kaneko, Sota Arakawa, Taishi Nakamoto Accepted for publication in Icarus PDF (OPEN ACCESS) “Coarse objects in chondrites such as chondrules and CAIs are mostly coated with fine-grained rims (FGRs). FGRs can be formed on…
Paleomagnetic evidence for a disk substructure in the early solar systemOPEN ACCESS
Cauê S. Borlina, Benjamin P. Weiss, James F. J. Bryson, Xue-Ning Bai, Eduardo A. Lima, Nilanjan Chatterjee, and Elias N. Mansbach Science Advances15 Oct 2021, Vol 7, Issue 42 LINK (OPEN ACCESS)PDF (OPEN ACCESS)Supplementary Materials…
Carbonaceous-chondrite inclusions in the Kapoeta achondritic meteorite studied by Mössbauer spectroscopy
Yassir A. Abdu Hyperfine Interactions, Volume 242, Article number: 5 (2021)Published: 13 October 2021 LINK “Kapoeta is an achondrite meteorite containing mm-sized carbonaceous-chondrite inclusions that are thought to have been incorporated into its parent body…
New Multielement Isotopic Compositions of Presolar SiC Grains: Implications for Their Stellar Origins
Nan Liu, Jens Barosch, Larry R. Nittler, Conel M. O’D. Alexander, Jianhua Wang, Sergio Cristallo, Maurizio Busso, and Sara Palmerini The Astrophysical Journal Letters, Volume 920, Number 1 LINK “We report NanoSIMS Si and Mg–Al…
Complementary nucleosynthetic isotope anomalies of Mo and W in chondrules and matrix in the Allende carbonaceous chondrite: The case for hydrothermal metamorphism and its implications
Ian S. Sanders, Edward R. D. Scott Meteoritics & Planetary ScienceVersion of Record online: 07 October 2021 LINK “The remarkable complementary isotopic relationship in the Allende chondrite between chondrules (depleted in s-process molybdenum and tungsten)…
Fossil records of early solar irradiation and cosmolocation of the CAI factory: A reappraisalOPEN ACCESS
David V. Bekaert, Maureen Auro, Quinn R. Shollenberger, Ming-Chang Liu, Horst Marschall, Kevin W. Burton, Benjamin Jacobsen, Gregory A. Brennecka, Glenn J. McPherson, Richard von Mutius, Adam Sarafian, and Sune G. Nielsen Science Advances •…
An experimental study on oxygen isotope exchange reaction between CAI melt and low-pressure water vapor under simulated Solar nebular conditionsOPEN ACCESS
Daiki Yamamoto, Noriyuki Kawasaki, Shogo Tachibana, Michiru Kamibayashi, Hisayoshi Yurimoto Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 23 September 2021 LINK (OPEN ACCESS) “Calcium-aluminum-rich inclusions (CAIs) are known as the oldest high-temperature mineral…
Thermal history of matrix forsterite grains from Murchison based on high-resolution tomographyOPEN ACCESS
Giulia Perotti, Henning O. Sørensen, Henning Haack, Anja C. Andersen, Dario Ferreira Sanchez, Elishevah M. M. E. van Kooten, Esther H. R. Tsai, Kim N. Dalby, Mirko Holler, Daniel Grolimund, Tue Hassenkam accepted for publication…
Cosmic Ray Induced Mass-Independent Oxygen Isotope Exchange: A Novel Mechanism for Producing 16O depletions in the Early Solar SystemOPEN ACCESS
G. Dominguez, J. Lucas, L. Tafla, M.C. Liu, K. McKeegan PDF (OPEN ACCESS) “A fundamental puzzle of our solar system’s formation is understanding why the terrestrial bodies including the planets, comets, and asteroids are depleted…
Cathodoluminescence, Raman and scanning electron microscopy with energy dispersion system mapping to unravel the mineralogy and texture of an altered Ca-Al-rich inclusion in Renazzo CR2 carbonaceous chondriteOPEN ACCESS
Mario Tribaudino, Danilo Bersani, Luciana Mantovani, Mattia Pizzati, Giancarlo Salviati Journal of Raman SpectroscopyFirst published: 05 September 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “An altered fluffy type A Ca-Al-rich inclusion in the CR2 Renazzo carbonaceous…
Impact plume-formed and protoplanetary disk high-temperature components in CB and CH metal-rich carbonaceous chondrites
Alexander N. Krot, Michail I. Petaev, Kazuhide Nagashima, Elena Dobrică, Brandon C. Johnson, Melissa D. Cashion Meteoritics & Planetary Science LINK “We report on the mineralogy, petrology, and oxygen isotopic compositions of ferroan olivine–pyroxene-normative cryptocrystalline…
Formation of chondrule analogs aboard the International Space StationOPEN ACCESS
Tamara E. Koch, Dominik Spahr, Beverley J. Tkalcec, Miles Lindner, David Merges, Fabian Wilde, Björn Winkler, Frank E. Brenker Meteoritics & Planetary ScienceVersion of Record online: 21 August 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Chondrules…
A Solar System formation analogue in the Ophiuchus star-forming complex
John C. Forbes, João Alves & Douglas N. C. Lin Nature Astronomy (2021) LINK “Anomalies among the daughter nuclei of the extinct short-lived radionuclides in calcium–aluminium-rich inclusions indicate that the Solar System must have been…
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…
Molecular Dynamics Approach for Predicting Release Temperatures of Noble Gases in Presolar Nanodiamonds
Alireza Aghajamali, Andrey A. Shiryaev, and Nigel A. Marks The Astrophysical Journal, Volume 916, Number 2Published: 2 August 2021 LINK “Presolar meteoritic nanodiamond grains carry an array of isotopically distinct noble gas components and provide…
Evidence from phosphorus X-ray mapping for a multistep process in the formation of olivine phenocrysts in FeO-rich porphyritic chondrules
Alan E. Rubin, Bastian Baecker Meteoritics & Planetary ScienceVersion of Record online: 31 July 2021 LINK “Phosphorus X-ray maps of olivine phenocrysts in many type II (FeO-rich) porphyritic chondrules in LL3.00 Semarkona and CO3.05 Y…
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)…
Trace Elemental Behavior in the Solar Nebula: Synchrotron X-ray Fluorescence Analyses of CM and CR Chondritic Iron Sulfides and Associated MetalOPEN ACCESS
S.A. Singerling, S.R. Sutton, A. Lanzirotti, M. Newville, A.J. Brearley Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 24 July 2021 LINK PDF (OPEN ACCESS) “We have performed a coordinated focused ion beam (FIB)-scanning…
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,…
Survival of presolar p-nuclide carriers in the nebula revealed by stepwise leaching of Allende refractory inclusionsOPEN ACCESS
Bruce L. A. Charlier, François L. H. Tissot, Hauke Vollstaedt, Nicolas Dauphas, Colin J. N. Wilson, Ren T. Marquez Science Advances 09 Jul 2021:Vol. 7, no. 28, eabf6222 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The 87Rb-87Sr…
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…
Oxygen and Al-Mg isotopic constraints on cooling rate and age of partial melting of an Allende Type B CAI, Golfball
Noriyuki Kawasaki, Shoichi Itoh, Naoya Sakamoto, Steven B. Simon, Daiki Yamamoto, Hisayoshi Yurimoto Meteoritics & Planetary ScienceVersion of Record online: 07 July 2021 LINK “Coarse-grained, igneous Ca-Al-rich inclusions (CAIs) in CV chondrites formed through multiple…
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,…
O-Isotope Signatures of Olivine and Pyroxene Grains in C1 and CM-Like Clasts
Patzek M., Bischoff A., Ludwig T., Whitehouse M., Trieloff M., Visser R., John T. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6096) PDF The olivine and pyroxene grains in C1 clasts seem…
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.
The Conspicuous Compound Chondrule-CAI Conundrum: A Case Study Within the Brecciated CM2.2 Lithology of the Carbonaceous Breccia Aguas Zarcas
Martin P. M. C., Lee M. R. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6190) PDF Discovery of a new Compound Chondrule-CAI (CCCAI) within the brecciated CM2.2 lithology of the carbonaceous breccia…
A Temporal Shift of Chondrule Generation from the Inner to Outer Solar System
84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6030) PDF The Al-Mg ages of chondrules from pristine CM and CO chondrites are systematically younger than those of the majority of ordinary chondrite chondrules,…
Timing and Environment of Chondrule Formation
Kadlag Y. *, Leya I., Mezger K., Bouvier A.-S., Haberthür D., Hlushchuk R. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6060) PDF Combining temporal information (from Al-Mg relative ages) with environment (from…
The Non-Complementary Compositions of Chondrules and Matrices in CO, CM and CR Chondrites
Patzer A., Bullock E. S., Alexander C. M. O’D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6025) PDF Our results are inconsistent with chondrule-matrix complementarity but in line with the four-component model…
Investigating the Origin of Oxygen Isotopic Variations in Meteorites
Burbine T. H., Greenwood R. C. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6210) PDF We are currently undertaking modeling to investigate how the oxygen isotopic variations seen in meteorites can be…
Oxygen Isotope Reservoirs in the Solar Nebula
Desch S. J., Mane P., Dunham E. T., Williams C. D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6244) PDF Our astrophysical model combining magnetic forces on dust during star formation and…
A Xenolith from an Early Formed Parent Body in the CM Carbonaceous Chondrite LaPaz Icefield 02239
Lee M. R., Martin P. M. C., Floyd C. J., Jenkins L. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6176) PDF Why do so few xenoliths in CM carbonaceous chondrites have a…
Identification of Clasts in CM Chondrite Fall Kolang with S and Ca
Jenkins L. E., Lee M., Daly L., King A. J., Chung P. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6161) PDF Clasts experienced / Alteration with fluids / Of varied makeups.
Post-Brecciation Chondrule Flattening and Petrofabric Formation in CM Chondrite Kolang
Jenkins L. E., Lee M., Daly L., King A. J., Chung P. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6165) PDF Petrofabrics and / Flattened chondrules shared among / The clasts of…
Atomic-scale Evidence for Open-system Thermodynamics in the Early Solar NebulaOPEN ACCESS
Thomas J. Zega, Venkat Rao Manga, Fred Ciesla, Krishna Muralidharan, Keitaro Watanabe and Hiromi Inada The Planetary Science Journal, Volume 2, Number 3 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We report a new integrated framework that…
The Macroporosity of Rubble Pile Asteroid Ryugu and Implications for the Origin of ChondrulesOPEN ACCESS
William Herbst, James P. Greenwood and Teng Ee Yap The Planetary Science Journal, Volume 2, Number 3 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We use the known surface boulder-size distribution of the C-type rubble pile asteroid…
The trace element composition of chondrule constituents: Implications for sample return methodologies and the chondrule silicate reservoir
Tak Kunihiro, Tsutomu Ota, Masahiro Yamanaka, Christian Potiszil, Eizo Nakamura Meteoritics & Planetary ScienceVersion of Record online: 10 June 2021 LINK “Sample return missions represent great opportunities to study terrestrially uncontaminated solar system materials. However,…
An evolutionary condensation sequence revealed by mineralogically-distinct nodules in fine-grained, spinel-rich inclusions from CV3 chondrites: Implications for the genetic links between different types of non-igneous refractory inclusions
Shaofan Che, Adrian J. Brearley Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 8 June 2021 LINK “Fine-grained, spinel-rich inclusions (FGIs) are abundant in CV3 chondrites and exhibit textures and compositions that are consistent…
Nano-FTIR spectroscopic identification of prebiotic carbonyl compounds in Dominion Range 08006 carbonaceous chondriteOPEN ACCESS
Mehmet Yesiltas, Timothy D. Glotch & Bogdan Sava Scientific Reports 11 , 1–9, Published: 02 June 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Meteorites contain organic matter that may have contributed to the origin of life…
Evidence for protosolar graphene in Allende and QUE 94366 CV3 meteorites
Chaitanya Giri, Andrew Steele, Marc Fries Planetary and Space ScienceIn Press, Journal Pre-proof, Available online 27 May 2021 LINK “Highlights o Nanoscale graphene is found embedded in refractory inclusions of two different CV3 meteorites, Allende…
TEM Analyses of Unusual Presolar Silicon Carbide: Insights into the Range of Circumstellar Dust Condensation ConditionsOPEN ACCESS
S. A. Singerling, N. Liu, L. R. Nittler, C. M. O’D. Alexander, and R. M. Stroud The Astrophysical Journal, Volume 913, Number 2Published: 27 May 2021 LINK Update (31 May 2021): PDF (OPEN ACCESS)63 pages,…
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 chemical composition and homogeneity of the Allende matrixOPEN ACCESS
M.B. Neuland, K. Mezger, A. Riedo, M. Tulej, P. Wurz Planetary and Space ScienceIn Press, Journal Pre-proof, Available online 18 May 2021 LINK (OPEN ACCESS) “Highlights • The composition of the Allende meteorite matrix derived…
Constraints on Chondrule Generation, Disk Dynamics, and Asteroid Accretion from the Compositions of Carbonaceous Meteorites
James F. J. Bryson and Gregory A. Brennecka The Astrophysical Journal, Volume 912, Number 2 LINK The elemental and isotopic compositions of meteorites are expected to reflect several key processes that occurred in the early…
Formation of rims around chondrules via porous aggregate accretionOPEN ACCESS
Yuji Matsumoto, Yasuhiro Hasegawa, Nozomi Matsuda, Ming-Chang Liu Accepted for publication in Icarus PDF (OPEN ACCESS) “Chondrules are often surrounded by fine-grained rims or igneous rims. The properties of these rims reflect their formation histories….
A super‐refractory inclusion containing nonstoichiometric spinel from the CO3.0 chondrite Yamato 81020
Hisayoshi Yurimoto, Alan E. Rubin, Shoichi Itoh, John T. Wasson Meteoritics & Planetary ScienceVersion of Record online: 03 May 2021 LINK “We studied a unique super‐refractory inclusion with a core‐mantle structure from CO3.0 Yamato 81020…
In situ Si isotope and chemical constraints on formation and processing of chondrules in the Allende meteoriteOPEN ACCESS
Yogita Kadlag, Michael Tatzel, Daniel A. Frick, Harry Becker, Philipp Kühne Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 23 April 2021 LINK (OPEN ACCESS) “Chondrules in undifferentiated meteorites are former silicate melt droplets…
Testing models for the composition of chondrites and their components: I. CO chondrites
Andrea Patzer, Emma S. Bullock, Conel M. O’D.Alexander Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 16 April 2021 LINK “We present the first results of a comprehensive investigation aimed at testing the hypothesis…
The Macroporosity of Rubble Pile Asteroid Ryugu and Implications for the Origin of ChondrulesOPEN ACCESS
William Herbst, James P. Greenwood, Teng Ee Yap Accepted for publication in the Planetary Science Journal PDF (OPEN ACCESS) “We use the known surface boulder-size distribution of the C-type rubble pile asteroid Ryugu (NEA 162173)…
Oxygen isotope systematics of crystalline silicates in a giant cluster IDP: A genetic link to Wild 2 particles and primitive chondrite chondrules
Mingming Zhang, Céline Defouilloy, David J. Joswiak, Donald E. Brownlee, Daisuke Nakashima, Guillaume Siron, Kouki Kitajima, Noriko T. Kita Earth and Planetary Science LettersVolume 564, 15 June 2021, 116928 LINK “Highlights • Five out of…
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…
Origin of minerals in åkermanite-rich patch texture and oxygen isotopic evolution of compact Type A Ca-Al-rich inclusions from the Northwest Africa 7865 CV chondrite
UPDATE (29 August 2023): Corrigendum to “Origin of minerals in åkermanite-rich patch texture and oxygen isotopic evolution of compact Type A Ca-Al-rich inclusions from the Northwest Africa 7865 CV chondrite” [Geochim. Cosmochim. Acta 303 (2021)…
Shape and porosity of refractory inclusions in CV3 chondrites: A micro‐computed tomography (µCT) study
Mingming Zhang, Brett Clark, Ashley J. King, Sara S. Russell, Yangting Lin Meteoritics & Planetary ScienceVersion of Record online:17 March 2021 LINK “Refractory calcium‐aluminum‐rich inclusions (CAIs) and amoeboid olivine aggregates (AOAs) in chondritic meteorites are…
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…
Hybrid accretion of carbonaceous chondrites by radial transport across the Jupiter barrierOPEN ACCESS
Elishevah van Kooten, Martin Schiller, Frederic Moynier, Anders Johansen, Troels Haugboelle, Martin Bizzarro The Astrophysical Journal, 2021, accepted after peer-review PDF (OPEN ACCESS) Update (26 March 2021): The Astrophysical Journal, Volume 910, Number 1 LINK…
An evolutionary system of mineralogy. Part III: Primary chondrule mineralogy (4566 to 4561 Ma)
Robert M. Hazen, Shaunna M. Morrison, Anirudh Prabhu American Mineralogist (2021) 106 (3): 325–350. LINK “Information-rich attributes of minerals reveal their physical, chemical, and biological modes of origin in the context of planetary evolution, and…
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…
Micro-distribution of Oxygen Isotopes in Unequilibrated Enstatite Chondrites
Michael K. Weisberg, Noriko T. Kita, Kohei Fukuda, Guillaume Siron, Denton S.Ebel Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 25 February 2021 LINK “We report petrology and high precision, in situ oxygen isotope…
Oxygen isotope systematics of chondrules in the Paris CM2 chondrite: indication for a single large formation region across snow line
Noël Chaumard, Céline Defouilloy, Andreas T. Hertwig, Noriko T. Kita Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 18 February 2021 LINK “In-situ oxygen three-isotope analyses of chondrules and isolated olivine grains in the…
Constraints on Chondrule Generation, Disk Dynamics, and Asteroid Accretion from the Compositions of Carbonaceous Meteorites
Bryson J. F. J., Brennecka G. A. 52nd Lunar and Planetary Science Conference (2021), Abstract #1301 PDF “The compositions of CC chondrites and iron meteorites originate from mixing NC chondrite material, CAI material, and CI…
Presolar Grain Abundance Variation in the Miller Range 090019 CO3.1 Chondrite
Nguyen A. N., Mane P., Ross D. K., Simon J. I. 52nd Lunar and Planetary Science Conference (2021), Abstract #2709 PDF “We determine a presolar O-rich grain abundance of 99ppm in MIL 090019 CO3.1. One…
The Presolar Grain Database for Silicon Carbide — Grain Type Assignments
Stephan T., Bose M., Boujibar A., Davis A. M., Gyngard F. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2358 PDF “The updated Presolar Grain Database now contains data for 19,976 SiC grains….
Stalking a Large Carbonaceous Chondrite Asteroid Using ε54Cr-Δ17O Isotope Systematics of the Unique Xenolith Almahata Sitta 202
Miller A. M., Dey S., Yin Q.-Z., Goodrich C. A., Hamilton V. E., et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2360 PDF “Xenolithic clast, unique among the regolith: Who was your parent?”
Inheritance of Meteoritic Isotopic Anomalies from a Zoned Protosolar Cloud
Jacquet E., Pignatale F. C. 52nd Lunar and Planetary Science Conference (2021), Abstract #1042 PDF “Sequential infall from an isotopically zoned protosolar cloud created the range of isotopic compositions fossilized by CAIs. Bulk meteorites sample…
Isotopic Constraints on the Building Blocks of the Solar System
Bermingham K. R., Meyer B. S., Frizzell K., Mezger K. M. 52nd Lunar and Planetary Science Conference (2021), Abstract #2107 PDF “Isotopic variations in meteorites coupled with new nucleosynthesis models are used to constrain the…
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…
K Isotope Systematics of the CB Chondrite Gujba: Testing the Impact Plume Model of Formation
Koefoed P., Pravdivtseva O., Ogliore R., Jiang Y., Lodders K. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #2310 PDF “High-precision K isotope analysis of chondrule and bulk fractions from the CB chondrite…
Producing Chondrules in the Outer Solar System: The Effect of Ice on Impact Jetting
Cashion M. D., Johnson B. C., Wakita S., Davison T., Krot A. N. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #1737 PDF “In this work, we simulate collisions between bodies of mixed…
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…
Resolving the Contradictory Results for Chondrule Size Distributions When These are Empirically Determined and Theoretically Considered
Hezel D. C., Metzler K., Hochstein M. L. 52nd Lunar and Planetary Science Conference (2021), Abstract #2264 PDF “Chondrule size distributions are critical to understand chondrule formation, sorting, or fragmentation. We resolve a long-standing contradiction…
Oxygen Isotope Reservoirs in the Solar Nebula
Mane P., Desch S. J., Dunham E. T., Williams C. D. 52nd Lunar and Planetary Science Conference 2021, abstract #2566 PDF
A Presolar Silicon Carbide Grain of Type C with Extremely Low 12C/13C Ratio
P. Hoppe, Schofield J., Pignatari M., Amari S. 52nd Lunar and Planetary Science Conference (2021), Abstract #1055 PDF “We report on a presolar SiC grain of Type C with an extremely low 12C/13C ratio of…
A CV Chondrite Clast in a CK Chondrite?
T. L. Dunn, Robak K. N., Gross J. 52nd Lunar and Planetary Science Conference (2021), Abstract #1063 PDF
Separate CAI Reservoirs for Allende (CV3) and Murchison (CM2)
D. S. Ebel, Fendrich K. V. 52nd Lunar and Planetary Science Conference (2021), Abstract #2311 PDF “Chemical compositions, textures, and sizes of CAIs reveal characteristic populations in CV and CM chondrites. With chondrule evidence, this…
Multiple CV Chondrule Precursors Originating from the Inner and Outer Solar System: Evidence from Cr-Ti-O Isotope Systematics of Allende Chondrules
K. Fukuda, Hibiya Y., Kastelle C. R., Suzuki K., Iizuka T. et al. 52nd Lunar and Planetary Science Conference (2021), Abstract #1319 PDF “The large ranges of Cr-Ti-O isotope ratios among CV chondrules indicate that…
Initial 244Pu/238U Ratios and Search for Presolar SiC in CAIs Inferred from Noble Gas and Trace Element Abundances in CAIs from CV3 Chondrites
D. Nakashima, Friedrich J. M., Ott U. 52nd Lunar and Planetary Science Conference (2021), Abstract #1944 PDF “The Pu/U ratio estimated from noble gas and REE abundances in the five CV3 CAIs is consistent with…
Evidence Against Chondrule-Matrix Complementarity as Seen in CO, CM, and CR Chondrites
A. Patzer, Bullock E. S., Alexander C. M. O’D. 52nd Lunar and Planetary Science Conference (2021), Abstract #1866 PDF “We have investigated 12 CO, CM, and CR chondrites to test models for the compositions and…
Petrology of the opaque assemblages in unequilibrated ordinary chondrites
Samuel P. Alpert, Denton S. Ebel, Michael K. Weisberg, Jeremy R. Neiman Meteoritics & Planetary ScienceVersion of Record online: 05 February 2021 LINK “Opaque assemblages (OAs) are small (submillimeter) objects composed primarily of metals, sulfides,…
Simultaneous determination of mass-dependent Mg isotopic variations and radiogenic 26Mg by laser ablation-MC-ICP-MS and implications for the formation of chondrules
Zhengbin Deng, Marc Chaussidon, Denton S. Ebel, Johan Villeneuve, Julien Moureau, Frédéric Moynier Geochimica et Cosmochimica ActaAvailable online 2 February 2021 LINK “Improvements in our understanding of the formation of chondrules requires a better knowledge…
Bubbles to Chondrites-I. Evaporation and condensation experiments, and formation of chondrulesOPEN ACCESS
Yuki Nakano & Akihiko Hashimoto Progress in Earth and Planetary Science volume 7, Article number: 47 (2020) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We propose a simple model of chondrule formation that is supported by our…
Bubbles to Chondrites-II. Chemical fractionations in chondritesOPEN ACCESS
Akihiko Hashimoto & Yuki Nakano Progress in Earth and Planetary Science volume 8, Article number: 9 (2021) LINK (OPEN ACCESS)PDF (DOWNLOAD) “We attempt to develop a possible theory of chemical fractionations in chondrites, that is…
Presolar stardust in highly pristine CM chondrites Asuka 12169 and Asuka 12236OPEN ACCESS
Larry R. Nittler, Conel M. O’D. Alexander, Andrea Patzer, Maximilien J. Verdier‐Paoletti Meteoritics & Planetary ScienceVersion of Record online: 18 January 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We report a NanoSIMS search for presolar grains…
Microstructures of enstatite in fine-grained CAIs from CV3 chondrites: Implications for mechanisms and conditions of formation
Shaofan Che, Adrian J. Brearley Geochimica et Cosmochimica ActaAvailable online 12 January 2021 LINK “Enstatite is a ubiquitous phase in chondritic meteorites, interplanetary dust particles, and cometary samples. In equilibrium condensation models, enstatite is predicted…
Collisions and compositional variability in chondrule-forming eventsOPEN ACCESS
Emmanuel Jacquet Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 8 January 2021 LINK PDF (OPEN ACCESS) “Compound chondrules, i.e. chondrules fused together, make a powerful probe of the density and compositional diversity in…
Heating events in the nascent solar system recorded by rare earth element isotopic fractionation in refractory inclusionsOPEN ACCESS
J. Y. Hu, N. Dauphas, F. L. H. Tissot, R. Yokochi, T. J. Ireland, Z. Zhang, A. M. Davis, F. J. Ciesla, L. Grossman, B. L. A. Charlier, M. Roskosz, E. E. Alp, M. Y….
Modeling the evaporation of CAI-like melts, and constraining the origin of CH-CB CAIs
Marina A. Ivanova, Ruslan A. Mendybaev, Sergei I. Shornikov, Cyril A. Lorenz, Glenn J. MacPherson Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 5 January 2021 LINK “To address the bulk compositions of CAIs…
Nebular thermal processing of accretionary fine-grained rims in the Paris CM chondrite
P-M. Zanetta, H. Leroux, C. Le Guillou, B. Zanda, R.H. Hewins Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 29 December 2020 LINK “Highlights • Fine-grained rims are less altered than the matrix in…
Chondrules from high-velocity collisions: thermal histories and the agglomeration problemOPEN ACCESS
Nick Choksi, Eugene Chiang, Harold C. Connolly Jr., Zack Gainsforth, Andrew J. Westphal Major revisions to agglomeration, connections made to Hayabusa2 and OSIRIS-REx. Minor updates to Sections 2.3 and 3.2 discussing the treatment of the…
Petrographic and isotopic investigations of two unusual Ca-Al-rich Inclusions from primitive CO3 chondrites
A. T. Hertwig, M.-C. Liu, A.J. Brearley, S.B. Simon Geochimica et Cosmochimica ActaAvailable online 28 December 2020 LINK “We performed high-precision SIMS (secondary ion mass spectrometry) 26Al-26Mg and oxygen isotope analyses of two unique CAIs,…
An unusual porous, cryptocrystalline forsterite chondrule in Murchison
Michael Zolensky, Tomoki Nakamura, James Martinez, Yuma Enokido Meteoritics & Planetary ScienceVersion of Record online: 28 December 2020 LINK “We describe a fragmented cryptocrystalline chondrule consisting solely of forsterite (Fo98) in the Murchison CM2 chondrite,…
Al‐Mg isotopic study of spinel‐rich fine‐grained CAIs
Glenn J. MacPherson, Alexander N. Krot, Kazuhide Nagashima Meteoritics & Planetary ScienceFirst published: 23 December 2020 LINK “High‐precision SIMS analyses of seven spinel‐rich fine‐grained CAIs from the CV3 chondrites Efremovka, Kaba, and Vigarano and the…
Nature of the Clinoenstatite Rim in Refractory Forsterite-Rich Objects from Carbonaceous Chondrites: First Results of Study by the Method of Electron Backscatter Diffraction (EBSD)
S. V. Berzin, V. A. Koroteev, K. A. Dugushkina, V. V. Shilovskikh, D. A. Zamyatin & S. Yu. Stepanov Doklady Earth Sciences, Volume 495, pages 812–815 LINK “A clinoenstatite rim occurs in many refractory forsterite-rich…
Sputtering of Presolar Grains via Galactic Cosmic Rays in the Interstellar Medium
Akshat Garg, Kuljeet K. Marhas, and Vikram Goyal The Astrophysical Journal, Volume 905, Number 1Published: 2020 December 15 LINK “The sputtering rate of presolar silicon carbide grains due to galactic cosmic rays has been computed…
Cluster analysis of presolar silicon carbide grains: evaluation of their classification and astrophysical implicationsOPEN ACCESS
Asmaa Boujibar, Samantha Howell, Shuang Zhang, Grethe Hystad, Anirudh Prabhu, Nan Liu, Thomas Stephan, Shweta Narkar, Ahmed Eleish, Shaunna M. Morrison, Robert M. Hazen, Larry R. Nittler accepted at ApJL PDF (OPEN ACCESS) “Cluster analysis…
Presolar Stardust in Highly Pristine CM Chondrites Asuka 12169 and Asuka 12236OPEN ACCESS
Larry R. Nittler, Conel M. O’D. Alexander, Andrea Patzer, Maximilien J. Verdier-Paoletti Accepted for publication in Meteoritics and Planetary Science PDF (OPEN ACCESS) “We report a NanoSIMS search for presolar grains in the CM chondrites…
Trace Element Composition of Silicate Minerals in the Chondrules and Matrix of the Buschhof Meteorite
K. G. Sukhanova, S. G. Skublov, O. L. Galankina, E. V. Obolonskaya & E. L. Kotova Geochemistry International, Volume 58, pages 1321–1330 (2020) LINK “The paper presents results of SIMS and SEM-EDS studies of the…
