Early solar system chronology from short-lived chronometersOPEN ACCESS
Aryavart Anand, Klaus Mezger GeochemistryInvited ReviewAvailable online 30 May 2023, 126004 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Age constraints on early solar system processes and events can be derived from meteorites and their components using…
26Al–26Mg chronology of high-temperature condensate hibonite in a fine-grained, Ca-Al-rich inclusion from reduced CV chondrite
Noriyuki Kawasaki, Daiki Yamamoto, Sohei Wada, Changkun Park, Hwayoung Kim, Naoya Sakamoto, Hisayoshi Yurimoto MAPS, First published: 15 May 2023 LINK “Al–Mg mineral isochron studies using secondary ion mass spectrometry (SIMS) have revealed the initial…
Calcium–aluminum-rich inclusions in non-carbonaceous chondrites: Abundances, sizes, and mineralogyOPEN ACCESS
E. T. Dunham, A. Sheikh, D. Opara, N. Matsuda, M.-C. Liu, K. D. McKeegan MAPS, Version of Record online: 12 May 2023 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “As the Sun was forming, calcium–aluminum-rich inclusions (CAIs)…
Insights on the Sun Birth Environment in the Context of Star Cluster Formation in Hub–Filament SystemsOPEN ACCESS
Doris Arzoumanian, Sota Arakawa, Masato I. N. Kobayashi, Kazunari Iwasaki, Kohei Fukuda, Shoji Mori, Yutaka Hirai, Masanobu Kunitomo, M. S. Nanda Kumar, and Eiichiro Kokubo The Astrophysical Journal Letters, Volume 947, Number 2 LINK (OPEN…
In situ oxygen, magnesium, and silicon isotopic compositions of the FUN inclusion Vigarano 1623-5OPEN ACCESS
Johanna Marin-Carbonne, Kevin D. McKeegan, Andrew M. Davis, Glenn J. MacPherson, Ruslan A. Mendybaev, Frank M. Richter MAPSVersion of Record online: 27 March 2023 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Oxygen, magnesium, and silicon isotopic abundances…
Protracted Timescales for Nebular Processing of First-formed Solids in the Solar SystemOPEN ACCESS
Prajkta Mane, Maitrayee Bose, Meenakshi Wadhwa, and Céline Defouilloy The Astrophysical Journal, Volume 946, Number 1, Published: 24 March 2023 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The calcium–aluminum-rich inclusions (CAIs) from chondritic meteorites are the first…
Titanium and chromium isotopic compositions of calcium-aluminum-rich inclusions: Implications for the sources of isotopic anomalies and the formation of distinct isotopic reservoirs in the early Solar System
Zachary A. Torrano, Gregory A. Brennecka, Cameron M. Mercer, Stephen J. Romaniello, Vinai K. Rai, Rebekah R. Hines, Meenakshi Wadhwa, Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 21 March 2023 LINK “As the…
Mineralogical alteration of a type A CAI from Allende CV3 chondrite: Formation of secondary dmisteinbergite and its phase transition to anorthiteOPEN ACCESS
Yuma Enokido, Tomoki Nakamura, Megumi Matsumoto, Akira Miyake, Takazo Shibuya, Changkun Park, Mike Zolensky MAPSVersion of Record online: 24 February 2023 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Dmisteinbergite, a hexagonal form of CaAl2Si2O8, was found in…
Chondrule-like objects and Ca-Al-rich inclusions in Ryugu may potentially be the oldest Solar System materialsOPEN ACCESS
Daisuke Nakashima, Tomoki Nakamura, Mingming Zhang, Noriko T. Kita, Takashi Mikouchi, Hideto Yoshida, Yuma Enokido, Tomoyo Morita, Mizuha Kikuiri, Kana Amano, Eiichi Kagawa, Toru Yada, Masahiro Nishimura, Aiko Nakato, Akiko Miyazaki, Kasumi Yogata, Masanao Abe,…
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.
Strontium isotope evidence for the repeated formation of refractory inclusions in the Allende meteorite
Yuki Masuda, Tetsuya Yokoyama Geochimica et Cosmochimica ActaAvailable online 27 January 2023 LINK “Calcium-aluminum-rich inclusions (CAIs) in chondrite meteorites are the oldest rocks in the Solar System and were formed by condensation from nebular gas….
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…
High precision nickel isotope measurements of early Solar System materials and the origin of nucleosynthetic disk variabilityOPEN ACCESS
Georgy V. Makhatadze (Георгий В. Махатадзе), Martin Schiller, Martin Bizzarro Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 30 December 2022 LINK (OPEN ACCESS) “Various chemical elements including nickel (Ni) exhibit mass-independent isotope heterogeneity…
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…
Disk transport rates from Ti isotopic signatures of refractory inclusionsOPEN ACCESS
Jan Render, James F. J. Bryson, Samuel Ebert, Gregory A. Brennecka MAPSVersion of Record online: 10 November 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The early solar system was a dynamic period during which the formation…
A petrologic and microstructural study of a compact type A calcium-aluminum-rich inclusion from the Northwest Africa 5028 CR2 chondrite: Implications for nebular and parent-body processes
Tarunika Ramprasad, Pierre Haenecour, Kenneth Domanik, Thomas J. Zega MAPSVersion of Record online: 22 September 2022 LINK “Compact type A calcium-aluminum-rich inclusions (CTA CAIs) are believed to have experienced partial melting that erased all information…
Compositions of carbonaceous-type asteroidal cores in the early solar systemOPEN ACCESS
Bidong Zhang, Nancy L. Chabot and Alan E. Rubin Science Advances16 Sep 2022Vol 8, Issue 37 LINK (OPEN ACCESS)PDF (OPEN ACCESS) Supplementary Materials (PDF) “The parent cores of iron meteorites belong to the earliest accreted…
Oxygen isotope exchange kinetics between CAI melt and carbon monoxide gas: Implication for CAI formation in the earliest Solar System
Daiki Yamamoto, Noriyuki Kawasaki, Shogo Tachibana, Michiru Kamibayashi, Hisayoshi Yurimoto Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 14 September 2022 LINK “Coarse-grained igneous calcium-aluminum-rich inclusions (CAIs) are suggested to have experienced gas-melt isotope…
Earliest Evidence of Nebular Shock Waves Recorded in a Calcium-Aluminum-rich Inclusion
Prajkta Mane, Shawn Wallace, Maitrayee Bose, Paul Wallace, Meenakshi Wadhwa, Juliane Weber, Thomas J. Zega Geochimica et Cosmochimica ActaAvailable online 20 June 2022 LINK “Highlights • Electron backscatter diffraction analysis of a calcium-aluminum rich inclusion…
The Timing of Potential Last Nucleosynthetic Injections into the Protosolar Molecular Cloud Inferred from 41Ca–26Al Systematics of Bulk CAIsOPEN ACCESS
Yaray Ku, Michail I. Petaev, and Stein B. Jacobsen The Astrophysical Journal Letters, Volume 931, Number 1Published: 23 May 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Short-lived radionuclides (SLRs) provide important information about the chronology of…
New minerals in type A inclusions from Allende and clues to processes in the early solar system: Paqueite, Ca3TiSi2(Al,Ti,Si)3O14, and burnettite, CaVAlSiO6
Chi Ma, John R. Beckett, François L. H. Tissot, George R. Rossman MAPSVersion of Record online: 12 May 2022 LINK “Paqueite (Ca3TiSi2[Al,Ti,Si]3O14; IMA 2013-053) and burnettite (CaVAlSiO6; IMA 2013-054) are new refractory minerals, occurring as…
Atomic-scale structure and non-stoichiometry of meteoritic hibonite: A transmission electron microscope study
Jangmi Han, Ichiro Ohnishi, Akira Yasuhara, Lindsay P. Keller American Mineralogist (2022) 107 (5): 873–884 LINK “Hibonite (CaAl12O19) is a common refractory mineral in Ca-Al-rich inclusions (CAIs) in primitive meteorites. Transmission electron microscope (TEM) studies…
Formation of fused aggregates under long-term microgravity conditions aboard the ISS with implications for early solar system particle aggregationOPEN ACCESS
Tamara E. Koch, Dominik Spahr, Beverley J. Tkalcec, Oliver Christ, Philomena-Theresa Genzel, Miles Lindner, David Merges, Fabian Wilde, Björn Winkler, Frank E. Brenker MAPSVersion of Record online: 21 April 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS)…
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…
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…
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…
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…
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),…
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…
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…
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…
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…
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…
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…
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…
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,…
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…
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…
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…
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…
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…
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
Akimasa Suzumura, Noriyuki Kawasaki, Yusuke Seto, Hisayoshi Yurimoto, Shoichi Itoh Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 5 April 2021 LINK “We report the in-situ oxygen isotopic distributions corresponding to the petrographic-mineralogical observation…
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…
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…
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…
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
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…
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…
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…
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…
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,…
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…
Astronomical context of Solar System formation from molybdenum isotopes in meteorite inclusions
Gregory A. Brennecka, Christoph Burkhardt, Gerrit Budde, Thomas S. Kruijer, Francis Nimmo, Thorsten Kleine Science 13 Nov 2020:Vol. 370, Issue 6518, pp. 837-840DOI: 10.1126/science.aaz8482 LINK “Calcium-aluminum–rich inclusions (CAIs) in meteorites are the first solids to…
Irradiation origin of 10Be in the solar nebula: Evidence from Li-Be-B and Al-Mg isotope systematics, and REE abundances of CAIs from Yamato-81020 CO3.05 chondrite
Kohei Fukuda, Hajime Hiyagon, Wataru Fujiya, Takanori Kagoshima, Keita Itano, Tsuyoshi Iizuka, Noriko T. Kita, Yuji Sano Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 20 October 2020 LINK “We have performed in situ…
Oxygen isotopic heterogeneity in the early Solar System inherited from the protosolar molecular cloudOPEN ACCESS
Alexander N. Krot, Kazuhide Nagashima, James R. Lyons, Jeong-Eun Lee, Martin Bizzarro Science Advances 16 Oct 2020:Vol. 6, no. 42, eaay2724DOI: 10.1126/sciadv.aay2724 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Sun is 16O-enriched (Δ17O = −28.4 ±…
Mineralogical and oxygen isotopic study of a new ultrarefractory inclusion in the Northwest Africa 3118 CV3 chondrite
Yong Xiong, Ai‐Cheng Zhang, Noriyuki Kawasaki, Chi Ma, Naoya Sakamoto, Jia‐Ni Chen, Li‐Xin Gu, Hisayoshi Yurimoto Meteoritics & Planetary ScienceVersion of Record online: 14 October 2020 LINK “Calcium‐aluminum‐rich inclusions (CAIs) are the first solid materials…
Structure of type A CAI-like melts: A view from multi-nuclear NMR study of melilite (Ca2Al2SiO7-Ca2MgSi2O7) glasses
Sun Young Park, Changkun Park, Hyun Na Kim, Seoyoung Lee, Sung Keun Lee Chemical GeologyIn Press, Journal Pre-proof, Available online 16 September 2020 LINK “Highlights • The coordination number of Al in melilite glasses and…
Did a Complex Carbon Cycle Operate in the Inner Solar System?OPEN ACCESS
Joseph A. Nuth, Frank T. Ferguson, Hugh G. M. Hill and Natasha M. Johnson Life 2020, 10(9), 206 LINK (OPEN ACCESS)PDF (DOWNLOAD) “Solids in the interstellar medium consist of an intimate mixture of silicate and…
Experiments quantifying elemental and isotopic fractionations during evaporation of CAI-like melts in low-pressure hydrogen and in vacuum: Constraints on thermal processing of CAI in the protoplanetary disk
Ruslan A. Mendybaev, Michiru Kamibayashi, Fang-Zhen Teng, Paul S. Savage, Bastian Georg, Frank M. Richter, Shogo Tachibana Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 16 September 2020 LINK “It is widely believed…
Mid-infrared reflectance spectroscopy of carbonaceous chondrites and Calcium–Aluminum-rich inclusions
Andreas Morlok, Benjamin Schiller, Iris Weber, Mohit Melwani Daswani, Aleksandra N. Stojic, Maximilian P. Reitze, Tim Gramse, Stephen D. Wolters, Harald Hiesinger, Monica M.Grady, Joern Helbert Planetary and Space ScienceIn Press, Journal Pre-proof, Available online…
One of the earliest refractory inclusions and its implications for solar system history
Jean-David Bodénan, Natalie A. Starkey, Sara S. Russell, Ian P. Wright, Ian A. Franchi Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 11 July 2020 LINK “A ∼175 µm refractory inclusion, A-COR-01 from one…
Oxygen-isotope heterogeneity in the Northwest Africa 3358 (H3.1) refractory inclusions – Fluid-assisted isotopic exchange on the H-chondrite parent body
Samuel Ebert, Kazuhide Nagashima, Alexander N. Krot, Addi Bischoff Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 21 May 2020 LINK “The nature of oxygen-isotope heterogeneity in refractory inclusions [Ca,Al-rich inclusions (CAIs) and amoeboid…
Solar system Nd isotope heterogeneity: Insights into nucleosynthetic components and protoplanetary disk evolution
Nikitha Susan Saji, Daniel Wielandt, Jesper Christian Holst, Martin Bizzarro Geochimica et Cosmochimica Acta LINK “High-precision Nd isotope measurements of a diverse set of solar system materials including bulk chondrites and achondrites reveal that their…
Variations in initial 26Al/27Al ratios among fine-grained Ca-Al-rich inclusions from reduced CV chondrites
Noriyuki Kawasaki, Sohei Wada, Changkun Park, Naoya Sakamoto, Hisayoshi Yurimoto Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 8 April 2020 LINK “Fine-grained Ca-Al-rich inclusions (FGIs) in CV chondrites are suggested to be…
Evidence for Asteroid Scattering and Distal Solar System Solids From Meteorite PaleomagnetismOPEN ACCESS
James F. J. Bryson, Benjamin P. Weiss, Eduardo A. Lima, Jérôme Gattacceca, and William S. Cassata The Astrophysical Journal, Volume 892, Number 2 LINK PDF (OPEN ACCESS) Submitted: 22 October 2021 Asteroid-sized bodies are predicted…
A refractory inclusion with solar oxygen isotopes and the rarity of such objects in the meteorite record
Levke Kööp, Kazuhide Nagashima, Andrew M. Davis, Alexander N. Krot Meteoritics & Planetary Science First Published: 27 March 2020 LINK “NASA’s Genesis mission revealed that the Sun is enriched in 16O compared to the Earth…
Primordial formation of major silicates in a protoplanetary disc with homogeneous 26Al/27AlOPEN ACCESS
Timothy Gregory, Tu-Han Luu, Christopher D. Coath, Sara S. Russell and Tim Elliott Science Advances 11 Mar 2020: Vol. 6, no. 11, eaay9626 DOI: 10.1126/sciadv.aay9626 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Understanding the spatial variability…
Refractory Inclusions in the Unique Meteorite from Amundsen Glacier (AMU 17290) in Antarctica: Implications for Early Solar System Processes
I. Baziotis, A. Papoutsa, S. Xydous, D. Michailidis, P. Karkanas, J. Karner, S. J. V. VanBommel, M. Anand, P. D. Asimow 51st Lunar and Planetary Science Conference (2020), Abstract #1842 PDF (OPEN ACCESS) “Meteorites, especially…
Episodic formation of refractory inclusions in the Solar System and their presolar heritageOPEN ACCESS
K.K. Larsen, D. Wielandt, M. Schiller, A.N. Krot, M. Bizzarro Earth and Planetary Science Letters Volume 535, 1 April 2020, 116088 LINK (OPEN ACCESS) PDF (download) “Highlights • Mg isotopes show multiple populations of refractory…
Evidence of presolar SiC in the Allende Curious Marie calcium–aluminium-rich inclusionOPEN ACCESS
O. Pravdivtseva, F. L. H. Tissot, N. Dauphas & S. Amari Nature Astronomy , 1–8 LINK PDF (OPEN ACCESS) “Calcium–aluminium-rich inclusions (CAIs) are one of the first solids to have condensed in the solar nebula,…
Magnesium isotopes of the bulk solar wind from genesis diamond‐like carbon filmsOPEN ACCESS
A. J. G. Jurewicz, K. D. Rieck, R. Hervig, D. S. Burnett, M. Wadhwa, C. T. Olinger, R. C. Wiens, J. M. Laming, Y. Guan, G. R. Huss, D. B. Reisenfeld, P. Williams Meteoritics &…
Origin of Al-rich chondrules in CV chondrites: Incorporation of diverse refractory components into the ferromagnesian chondrule-forming region
Mingming Zhang, Yangting Lin, Guoqiang Tang, Yu Liu, Ingo Leya Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 26 December 2019 LINK “Aluminum-rich (Al2O3 > 10 wt%) chondrules (ARCs) are important chondritic components that…
Origin of the Short-lived Radionuclide 10Be and Its Implications for the Astronomical Setting of CAI Formation in the Solar Protoplanetary Disk
Kohei Fukuda, Hajime Hiyagon, Wataru Fujiya, Naoto Takahata, Takanori Kagoshima, and Yuji Sano The Astrophysical Journal, Volume 886, Number 1 Published 2019 November 15 LINK “We report Li–Be–B and Al–Mg isotopic compositions of Ca-Al-rich inclusions…
A Coordinated Microstructural and Isotopic Study of a Wark-Lovering Rim on a Vigarano CAI
Jangmi Han, Lindsay P. Keller, Ming-Chang Liu, Andrew W. Needham, Andreas T. Hertwig, Scott Messenger, Justin I. Simon Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 7 November 2019 LINK “We carried out…
Fingerprints of the Protosolar Cloud Collapse in the Solar System. I. Distribution of Presolar Short-lived 26Al
Francesco C. Pignatale, Emmanuel Jacquet, Marc Chaussidon, and Sébastien Charnoz The Astrophysical Journal, Volume 884, Number 1 LINK “The short-lived radionuclide 26Al is widely used to determine the relative ages of chondrite components and timescales…
Fingerprints of the Protosolar Cloud Collapse in the Solar System. II. Nucleosynthetic Anomalies in MeteoritesOPEN ACCESS
Emmanuel Jacquet, Francesco C. Pignatale, Marc Chaussidon, and Sébastien Charnoz The Astrophysical Journal, Volume 884, Number 1 PDF (OPEN ACCESS) LINK “The isotopic heterogeneity of the solar system shown by meteorite analyses is more pronounced…
Origin of 16O-rich fine-grained Ca-Al-rich inclusions of different mineralogy and texture
Jangmi Han, Benjamin Jacobsen, Ming-Chang Liu, Adrian J. Brearley, Jennifer E. Matzel, Lindsay P. Keller Geochemistry In Press, Journal Pre-proof, Available online 28 September 2019 LINK “A coordinated mineralogical and oxygen isotopic study of four…
Nucleosynthetic, radiogenic and stable strontium isotopic variations in fine- and coarse-grained refractory inclusions from Allende
B.L.A. Charlier, F.L.H. Tissot, N. Dauphas, C.J.N. Wilson Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 12 September 2019 LINK “We present new nucleosynthetic, radiogenic and stable Sr isotopic data from fifteen previously…
Aluminum-26 chronology of dust coagulation and early solar system evolutionOPEN ACCESS
M.-C. Liu, J. Han, A. J. Brearley and A. T. Hertwig Science Advances 11 Sep 2019: Vol. 5, no. 9, eaaw3350 DOI: 10.1126/sciadv.aaw3350 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Dust condensation and coagulation in the…
Trace Element Partitioning between CAI-Type Melts and Grossite, Melilite, Hibonite, and Olivine
Gokce Ustunisik, Denton S. Ebel, David Walker, Roger L. Nielsen, Marina Gemma Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 9 September 2019 LINK “We determined the mineral-melt partition coefficients (Di’s) and the…
Formation of disk- and bowl-shaped igneous Ca,Al-rich inclusions: Constraints from their morphology, textures, mineralogy and modelling
C. Lorenz, M. Ivanova, A. Krot, V. Shuvalov Geochemistry Available online 19 August 2019 LINK “Calcium-aluminum-rich inclusions (CAIs) are the oldest Solar System solids dated that formed by evaporation, condensation, aggregation and, sometimes, melting processes…
MINERALOGY, PETROGRAPHY, AND OXYGEN ISOTOPIC COMPOSITIONS OF ULTRAREFRACTORY INCLUSIONS FROM CARBONACEOUS CHONDRITES
A.N. Krot, C. Ma, K. Nagashima, A.M. Davis, J.R. Beckett, S.B. Simon, M. Komatsu, T.J. Fagan, F. Brenker, M.A. Ivanova, A.Bischoff Geochemistry Available online 15 August 2019 LINK “We report on the mineralogy, petrography, and…
MINERALOGY, PETROGRAPHY, AND OXYGEN AND ALUMINUM-MAGNESIUM ISOTOPE SYSTEMATICS OF GROSSITE-BEARING REFRACTORY INCLUSIONS
Alexander N. Krot, Kazuhide Nagashima, Steven B. Simon, Chi Ma, Harold C. Connolly Jr., Gary R. Huss, Andrew M. Davis, Martin Bizzarro Geochemistry Available online 15 August 2019 LINK “Grossite (CaAl4O7) is one of the…
Cr isotopes in physically separated components of the Allende CV3 and Murchison CM2 chondrites: Implications for isotopic heterogeneity in the solar nebula and parent body processesOPEN ACCESS
Yogita Kadlag, Harry Becker, Andreas Harbott Meteoritics & Planetary Science First Published: 12 August 2019 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Chromium isotopic data of physically separated components (chondrules, CAIs, variably magnetic size fractions) of…
Theoretical Analysis of Mg and Si Chemical and Isotopic Fractionation at Vaporization of Ca–Al Inclusions of Chondrites
O. I. Yakovlev, S. I. Shornikov Geochemistry International August 2019, Volume 57, Issue 8, pp 851-864 LINK “Experimental study of changes in the composition of Ca–Al inclusions of chondrites during evaporation indicates the chemical and…
Titanium isotope signatures of calcium-aluminum-rich inclusions from CV and CK chondrites: Implications for early Solar System reservoirs and mixing
Zachary A. Torrano, Gregory A. Brennecka, Curtis D. Williams, Stephen J. Romaniello, Vinai K. Rai, Rebekah R.Hines, Meenakshi Wadhwaa Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 2 August 2019 LINK “Calcium-aluminum-rich inclusions…
Refractory inclusions in carbonaceous chondrites: Records of early solar system processes
Alexander N. Krot Meteoritics & Planetary Science First Published: 23 July 2019 LINK “Chondrites consist of three major components: refractory inclusions (Ca,Al‐rich inclusions [CAIs] and amoeboid olivine aggregates), chondrules, and matrix. Here, I summarize recent…
Combined mass-dependent and nucleosynthetic isotope variations in refractory inclusions and their mineral separates to determine their original Fe isotope compositions
Quinn R. Shollenberger, Andreas Wittke, Jan Render, Prajkta Mane, Stephan Schuth, Stefan Weyer, Nikolaus Gussone, Meenakshi Wadhwa, Gregory A. Brennecka Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 17 July 2019 LINK “Calcium-aluminum-rich…
Nucleosynthetic Sr–Nd Isotope Correlations in Chondrites: Evidence for Nebular Thermal Processing and Dust Transportation in the Early Solar System
Ryota Fukai, Tetsuya Yokoyama The Astrophysical Journal, Volume 879, Number 2 LINK “We conducted high-precision Sr and Nd isotopic measurements in bulk chondrites using a complete sample digestion technique. Our new data indicate that enstatite…
Elemental and isotopic variability in solar system materials by mixing and processing of primordial disk reservoirsOPEN ACCESS
Christoph Burkhardt, Nicolas Dauphas, Ulrik Hans, Bernard Bourdon, Thorsten Kleine Accepted for publication in Geochimica et Cosmochimica Acta / published 9 July 2019 PDF (OPEN ACCESS) Update (9 July 2019): LINK (OPEN ACCESS) PDF (OPEN…
On the origin of 7Be isotopic records in a Calcium, Aluminium, -rich inclusionOPEN ACCESS
Ritesh Kumar Mishra, Kuljeet Kaur Marhas PDF “A prime question in the formation and early evolution of the Solar system studies is to discern the source(s) of short-lived now extinct nuclides and to determine the…
Oxygen and Al‐Mg isotopic compositions of grossite‐bearing refractory inclusions from CO3 chondrites
Steven B. Simon, Alexander N. Krot, Kazuhide Nagashima Meteoritics & Planetary Science LINK “The distribution of the short‐lived radionuclide 26Al in the early solar system remains a major topic of investigation in planetary science. Thousands…
Probing the protosolar disk using dust filtering at gaps in the early Solar SystemOPEN ACCESS
Troels Haugbølle, Philipp Weber, Daniel P. Wielandt, Pablo Benítez-Llambay, Martin Bizzarro, Oliver Gressel, Martin E. Pessah accepted by Astrophysical Journal PDF (OPEN ACCESS) ” Jupiter and Saturn formed early, before the gas disk dispersed. The…
Meteoritic evidence of a late superflare as source of 7Be in the early Solar System
Ritesh Kumar Mishra & Kuljeet Kaur Marhas Nature Astronomy 1–8 (2019) LINK “Fossil meteoritic records of short-lived, now-extinct radionuclides provide crucial high-resolution temporal information about the events, processes and activity of the Sun during the…
Titanium isotopic evidence for a shared genetic heritage of refractory inclusions from different carbonaceous chondrites
Jan Render, Samuel Ebert, Christoph Burkhardt, Thorsten Kleine, Gregory A. Brennecka Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 14 March 2019 LINK “Insights into the earliest stages of our Solar System can…
On beryllium-10 production in gaseous protoplanetary disks and implications on the astrophysical setting of refractory inclusionsOPEN ACCESS
Emmanuel Jacquet Accepted to Astronomy & Astrophysics PDF (OPEN ACCESS) “Calcium-Aluminum-rich Inclusions (CAIs), the oldest known solids of the solar system, show evidence for the past presence of short-lived radionuclide beryllium-10, which was likely produced…
Textural and compositional evidence for in situ crystallization of palisade bodies in coarse‐grained Ca‐Al‐rich inclusions
Mingming Zhang, Yangting Lin, Ingo Leya, Guoqiang Tang, Yu Liu Meteoritics & Planetary Science First Published: 21 February 2019 LINK “Palisade bodies, mineral assemblages with spinel shells, in coarse‐grained Ca‐, Al‐rich inclusions (CAIs) have been…
Origin of the non-carbonaceous–carbonaceous meteorite dichotomyOPEN ACCESS
Josefine A. M. Nanne, Francis Nimmo, Jeffrey N.Cuzzi, Thorsten Kleine Earth and Planetary Science Letters Volume 511, 1 April 2019, Pages 44-54 LINK (OPEN ACCESS) “Highlights • New Ni isotopic data for iron meteorites confirm…
Variations in initial 26Al/27Al ratios among fluffy Type A Ca–Al-rich inclusions from reduced CV chondrites
Noriyuki Kawasaki, Changkun Park, Naoya Sakamoto, Sun Young Park, Hyun Na Kim, Minami Kuroda, Hisayoshi Yurimoto Earth and Planetary Science Letters Volume 511, 1 April 2019, Pages 25-35 LINK “Highlights • We obtained Al–Mg mineral…
Nebular history of an ultrarefractory phase bearing CAI from a reduced type CV chondriteOPEN ACCESS
Takashi Yoshizaki, Daisuke Nakashima, Tomoki Nakamura, Changkun Park, Naoya Sakamoto, Hatsumi Ishida, Shoichi Itoh PDF (OPEN ACCESS) Update (1 Mar 2019): LINK “Ultrarefractory (UR) phases in calcium-aluminum-rich inclusions (CAIs) could have formed at higher temperature…
Evidence for oxygen-isotope exchange in refractory inclusions from Kaba (CV3.1) carbonaceous chondrite during fluid-rock interaction on the CV parent asteroidOPEN ACCESS
Alexander N. Krot, Kazuhide Nagashima, Krisztián Fintor, Elemér Pál-Molnár Geochimica et Cosmochimica Acta LINK (OPEN ACCESS) PDF (OPEN ACCESS) “We report on the mineralogy, petrology, and in situ measured oxygen-isotope compositions of three Fluffy Type…
Making the Planetary Material Diversity During the Early Assembling of the Solar SystemOPEN ACCESS
Francesco Cristiano Pignatale, Sébastien Charnoz, Marc Chaussidon, Emmanuel Jacquet Accepted 24/10/2018, ApJL PDF (OPEN ACCESS) LINK “Chondritic meteorites, the building blocks of terrestrial planets, are made of an out-of-equilibrium assemblage of solids formed at high…
High early solar activity inferred from helium and neon excesses in the oldest meteorite inclusions
L. Kööp, P. R. Heck, H. Busemann, A. M. Davis, J. Greer, C. Maden, M. M. M. Meier & R. Wieler Nature Astronomy (2018) Published: 30 July 2018 LINK “Astronomical observations show that early in…
Ti isotopic evidence for a non-CAI refractory component in the inner Solar System
Samuel Ebert, Jan Render, Gregory A. Brennecka, Christoph Burkhardt, Addi Bischoff, Simone Gerber, Thorsten Kleine Earth and Planetary Science Letters Volume 498, 15 September 2018, Pages 257-265 In Press, Available online 20 July 2018 LINK…
A Distinct Nucleosynthetic Heritage for Early Solar System Solids Recorded by Ni Isotope Signatures
Jan Render, Gregory A. Brennecka, Shui-Jiong Wang, Laura E. Wasylenki, and Thorsten Kleine The Astrophysical Journal, Volume 862, Number 1 Published: 19 July 2018 LINK “As the earliest dated solids, calcium–aluminum-rich inclusions (CAIs) provide a…
First evidence for silica condensation within the solar protoplanetary disk
Mutsumi Komatsu, Timothy J. Fagan, Alexander N. Krot, Kazuhide Nagashima, Michail I. Petaev, Makoto Kimura, and Akira Yamaguchi PNAS July 2, 2018. 201722265; published ahead of print July 2, 2018. https://doi.org/10.1073/pnas.1722265115 LINK “The oldest solar…
Celebrating the 50th anniversary of CAIs discovery by Mireille Christophe Michel–Lévy
Matthieu Gounelle Meteorit Planet Sci. doi.org/10.1111/maps.13127 First published: 25 June 2018 LINK “The scope of the present short report is to honor the discovery of the first calcium‐aluminum‐rich inclusion in 1968 as well as the…
Lack of resolvable titanium stable isotopic variations in bulk chondrites
Zhengbin Deng, Frédéric Moynier, Kirsten van Zuilen, Paolo A. Sossi, Emily A. Pringle, Marc Chaussidon Geochimica et Cosmochimica Acta Available online 23 June 2018 LINK “Titanium and calcium are both refractory lithophile elements. Significant stable…
Particle size distributions in chondritic meteorites: Evidence for pre-planetesimal historiesOPEN ACCESS
J.I. Simon, J.N. Cuzzi, K.A. McCain, M.J. Cato, P.A. Christoffersen, K.R. Fisher, P. Srinivasan, A.W. Tait, D.M. Olson, J.D. Scargle Earth and Planetary Science Letters Volume 494, 15 July 2018, Pages 69–82 LINK (OPEN ACCESS)…
Er, Yb, and Hf isotopic compositions of refractory inclusions: An integrated isotopic fingerprint of the Solar System’s earliest reservoir
Quinn R. Shollenberger, Jan Render, Gregory A. Brennecka Earth and Planetary Science Letters Volume 495, 1 August 2018, Pages 12–23 LINK “Highlights • We present new methods to measure Er and Yb isotopes by MC-ICPMS…
Chondritic ingredients: II. Reconstructing early solar system history via refractory lithophile trace elements in individual objects of the Leoville CV3 chondrite
Andrea Patzer, Dominik C. Hezel, Verena Bendel, Andreas Pack Meteorit Planet Sci. . doi:10.1111/maps.13084 LINK “We performed a LA‐ICP‐MS study of refractory lithophile trace elements in 32 individual objects selected from a single section of…
Petrography and mineralogy of calcium-, aluminum-rich inclusions in an unequilibrated carbonaceous chondrite Y 81020 (CO3.05)OPEN ACCESS
Mishra, Ritesh Kumar Current Science Volume 114 – Issue 07 : 10 April 2018 PDF (OPEN ACCESS) “Petrographic and quantitative analyses of more than 70 refractory inclusions found in the studied thin section of Yamato…
O, Mg, and Si isotope distributions in the complex ultrarefractory CAI Efremovka 101.1: Assimilation of ultrarefractory, FUN, and regular CAI precursors
Jérôme Aléon, Johanna Marin-Carbonne, Kevin D. McKeegan, Ahmed El Goresy Geochimica et Cosmochimica Acta Available online 9 April 2018 LINK “Oxygen, magnesium, and silicon isotopic compositions in the mineralogically complex, ultrarefractory (UR) calcium-aluminum-rich inclusion (CAI)…
High-precision Al–Mg isotopic systematics in USNM 3898 – The benchmark “ALL” for initial 87Sr/86Sr in the earliest Solar System
G.J. MacPherson, C. Defouilloy, N.T. Kita Earth and Planetary Science Letters Volume 491, 1 June 2018, Pages 238–243 Available online 6 April 2018 LINK “Highlights • The CAI USNM 3898 ≡ ALL, the lowest measured…
Alteration of CAIs as recorded by 36S/34S as a function of 35Cl/34S
I. Leya, J. Masarik, Y. Lin Meteoritics & Planetary Science First published: 25 March 2018 https://doi.org/10.1111/maps.13070 LINK “Using new model calculations, we study the production of chlorine and sulfur isotopes in different irradiation scenarios. We…
Calcium and titanium isotopes in refractory inclusions from CM, CO, and CR chondrites
Levke Kööp, Andrew M. Davis, Alexander N. Krot, Kazuhide Nagashima, Steven B. Simon Earth and Planetary Science Letters Volume 489, 1 May 2018, Pages 179–190 Available online 9 March 2018 LINK “Highlights • Some CAIs…
Isotopic coherence of refractory inclusions from CV and CK meteorites: Evidence from multiple isotope systems
Quinn R. Shollenberger, Lars E. Borg, Jan Render, Samuel Ebert, Addi Bischoff, Sara S. Russell, Gregory A. Brennecka Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 2 March 2018 LINK “Calcium-aluminum-rich inclusions (CAIs)…
Origins of mass-dependent and mass-independent Ca isotope variations in meteoritic components and meteorites
K.R. Bermingham, N. Gussone, K. Mezger, J. Krause In Press, Accepted Manuscript, Available online 8 February 2018 LINK “The Ca isotope composition of meteorites and their components may vary due to mass-dependent and/or -independent isotope…
Mineralogy, Petrography, and Oxygen Isotopic Compositions of Ultrarefractory Inclusions from Carbonaceous Chondrites
A. N. Krot, C. Ma, K. Nagashima, A. M. Davis, J. R. Beckett, S. B. Simon, M. Komatsu, T. J. Fagan, F. Brenker, M. A. Ivanova, A. Bischoff 49th Lunar and Planetary Science Conference (2018),…
Solution of the CAI Storage Problem, and the Time and Place of Formation of Meteorite Parent Bodies
S. J. Desch, A. Kalyaan, C. M. O’D. Alexander 49th Lunar and Planetary Science Conference (2018), Abstract #2335 abstract
Molybdenum Isotopic Evidence for a Distal Formation of Refractory Inclusions
G. A. Brennecka, C. Burkhardt, F. Nimmo, T. S. Kruijer, T. Kleine 49th Lunar and Planetary Science Conference (2018), Abstract #2429 PDF
Closed system oxygen isotope redistribution in igneous CAIs upon spinel dissolution
Jérôme Aléon Earth and Planetary Science Letters Volume 482, 15 January 2018, Pages 324–333 LINK “Highlights • Pyroxene in most igneous CAIs becomes 16O-enriched during crystallization. • O isotopes in type A, type B and…
The Effect of Jupiter’s Formation on the Distribution of Refractory Elements and Inclusions in MeteoritesOPEN ACCESS
Steven J. Desch, Anusha Kalyaan, Conel M. O’D. Alexander submitted to ApJ PDF (OPEN ACCESS) “We present a comprehensive evolutionary model of the Sun’s protoplanetary disk. The model predicts from first principles the gas densities…
Titanium isotopes and rare earth patterns in CAIs: evidence for thermal processing and gas-dust decoupling in the protoplanetary disk
Andrew M. Davis, Junjun Zhang, Nicolas D. Greber, Jingya Hu, François L.H. Tissot, Nicolas Dauphas Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 27 July 2017 LINK “Titanium isotopic compositions (mass-dependent fractionation and…
Addibischoffite, Ca2Al6Al6O20, a new calcium aluminate mineral from the Acfer 214 CH carbonaceous chondrite: A new refractory phase from the solar nebula
Chi Ma, Alexander N.Krot, Kazuhide Nagashima American Mineralogist, v. 102, i. 7, p. 1556-1560, First Published on July 03, 2017, doi:10.2138/am-2017-6032 LINK “Addibischoffite (IMA 2015-006), Ca2Al6Al6O20, is a new calcium aluminate mineral that occurs with…
Refractory materials in comet samples.OPEN ACCESS
Joswiak, D. J., Brownlee, D. E., Nguyen, A. N., Messenger, S. Meteorit Planet Sci. doi:10.1111/maps.12877 LINK “Transmission electron microscope examination of more than 250 fragments, >1 μm from comet Wild 2 and a giant cluster…
Insights into CAI Formation from Nickel Isotopic Signatures
Render J. * Brennecka G. A. Wang S. J. Wasylenki L. E. Kleine T. 80th Annual Meeting of the Meteoritical Society 2017 [#6327] abstract (PDF) “Refractory inclusions show isotopic variability in nickel, suggestive of a…
Calcium and Titanium Isotope Systematics in Refractory Inclusions from CM, CO, and CR Chondrites
Kööp L. * Davis A. M. Krot A. N. Nagashima K. Simon S. B. 80th Annual Meeting of the Meteoritical Society 2017 [#6280] abstract (PDF) “We studied a large number of CAIs from three different…
Oxygen, Magnesium, and Aluminum Isotopes in the Ivuna CAI: Re-Examining High-Temperature Fractionations in CI Chondrites
Frank D. R. * Huss G. R. Nagashima K. Zolensky M. E. Le L. 80th Annual Meeting of the Meteoritical Society 2017 [#6355] abstract (PDF) “The only whole CAI preserved in the aqueously altered CI…
Constraints from Isotopic Dichotomy of Meteorites and from a Trans-Jovian Origin for Carbonaceous Chondrites on the Origin of Chondritic Components
Scott E. R. D. * Krot A. N. Sanders I. S. 80th Annual Meeting of the Meteoritical Society 2017 [#6395] abstract (PDF) “Formation of carbonaceous chondrites beyond Jupiter helps explain CAI abundances in chondrites, differences…
The Evolution of the Protoplanetary Disk Recorded by Nucleosynthetic Isotope Variations of Variable Stellar Origin in Refractory Inclusions
Schönbächler M. * Lai Y.-J. Henshall T. Fehr M. A. Cook D. L. Bullock E. S. 80th Annual Meeting of the Meteoritical Society 2017 [#6222] abstract (PDF) “New CAI data confirm the homogeneous distribution of…
Crystal growth and disequilibrium distribution of oxygen isotopes in an igneous Ca-Al-rich inclusion from the Allende carbonaceous chondriteOPEN ACCESS
Noriyuki Kawasaki, Steven B. Simon, Lawrence Grossman, Naoya Sakamoto, Hisayoshi Yurimoto Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 1 June 2017 LINK (OPEN ACCESS) “TS34 is a Type B1 Ca-Al-rich inclusion (CAI)…
Mixing and transport of dust in the early solar nebula as inferred from titanium isotope variations among chondrulesOPEN ACCESS
Simone Gerber, Christoph Burkhardt, Gerrit Budde, Knut Metzler, Thorsten Kleine accepted for publication in the Astrophysical Journal Letters, May 10, 2017 PDF (OPEN ACCESS) Update (22 May 2017): LINK “Chondrules formed by the melting of…
A multielement isotopic study of refractory FUN and F CAIs: Mass-dependent and mass-independent isotope effects
Levke Kööp, Daisuke Nakashima, Philipp R. Heck, Noriko T. Kita, Travis J. Tenner, Alexander N. Krot, Kazuhide Nagashima, Changkun Park, Andrew M. Davis Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 26 April…
Early Solar System irradiation quantified by linked vanadium and beryllium isotope variations in meteoritesOPEN ACCESS
Paolo A. Sossi, Frédéric Moynier, Marc Chaussidon, Johan Villeneuve, Chizu Kato & Matthieu Gounelle Nature Astronomy 1, Article number: 0055 (2017) doi:10.1038/s41550-017-0055 Published online: 20 March 2017 PDF (OPEN ACCESS) LINK “X-ray emission in young…
