Confirmed meteorite fall (~ 15.152 kg, H5, S2) on 22 July 2019 near Kauriahī (कौरिअही) village, Mahādēvā (महादेवा) village area, Kariot panchayat, Laukahī (लौकही) Block, Madhubanī District, Bihar, India at ~2:30 p.m. IST (~09:30 UTC)
The meteorite in Patna on 23 July 2019. Photo: Bihar Post Last update: 1 June 2020 On 22 Juli 2019 at around ~09:30 UTC (~2.30 p.m. IST) a meteorite of about 15.152 kg (H5, S2,…
Advances in Cosmochemistry Enabled by Antarctic MeteoritesOPEN ACCESS
Meenakshi Wadhwa, Timothy J. McCoy, and Devin L. Schrader Annual Review of Earth and Planetary Sciences Vol. 48:233-258 (Volume publication date May 2020)First published as a Review in Advance on January 8, 2020 LINK (OPEN…
Northwest Africa 8694, A ferroan chassignite: Bridging the gap between nakhlites and chassignites
R.H. Hewins, M. Humayun, J.A. Barrat, B. Zanda, J.P. Lorand, S. Pont, N. Assayag, P. Cartigny, S. Yang, V. Sautter Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 29 May 2020 LINK “The origin(s)…
Role of spectral resolution for infrared asteroid compositional analysis using meteorite spectraOPEN ACCESS
A. Skulteti, A. Kereszturi, Zs. Kereszty, B. Pal, M. Szabo, F. Cipriani Accepted in MNRAS for publication on May 22nd, 2020 PDF (OPEN ACCESS) “In this work the potential mineral identification of meteorites is analysed…
Classification of CM chondrite breccias—Implications for the evaluation of samples from the OSIRIS‐REx and Hayabusa 2 missionsOPEN ACCESS
Sarah Lentfort, Addi Bischoff, Samuel Ebert, Markus Patzek Meteoritics & Planetary ScienceVersion of Record online: 25 May 2020 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “CM chondrites are complex impact (mostly regolith) breccias, in which lithic clasts…
Outward migration of chondrule fragments in the Early Solar System: O-isotopic evidence for rocky material crossing the Jupiter Gap?
Devin L. Schrader, Kazuhide Nagashima, Jemma Davidson, Timothy J. McCoy, Ryan C. Ogliore, Roger R. Fu Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 22 May 2020 LINK “Determining the origins of chondrule precursors…
Hydrous olivine alteration on Mars and Earth
Zoltán Váci, Carl B. Agee, Christopher D. K. Herd, Erin Walton, Oliver Tschauner, Karen Ziegler, Vitali B. Prakapenka, Eran Greenberg, Sylvia Monique‐Thomas Meteoritics & Planetary ScienceVersion of Record online:21 May 2020 LINK “Hydrous alteration of…
New measurement technique for characterizing small extraterrestrial materials by X‐ray diffraction using the Gandolfi attachment
Naoya Imae, Makoto Kimura Meteoritics & Planetary ScienceVersion of Record online: 21 May 2020 LINK “Identification and characterization of small extraterrestrial samples, such as small Antarctic meteorites <~1 cm, require the development of convenient laboratory‐based…
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…
Monitoring of Spatiotemporal Variations in the Production Rates of Cosmogenic Radionuclides in Chondrites of Different Orbits Falling to Earth
G. K. Ustinova & V. A. Alexeev Geochemistry International, Volume 58, pages 487–499 (2020) LINK “The paper presents data obtained on the production rates of cosmogenic radionuclides of different half-life in 42 chondrites that fell…
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…
Silicon isotopic compositions of chondrule silicates in carbonaceous chondrites and the formation of primordial solids in the accretion disk
Johan Villeneuve, Yves Marrocchi, Emmanuel Jacquet Earth and Planetary Science LettersVolume 542, 15 July 2020, 116318 LINK “Highlights • Chondrules are characterized by large, in situ mass-dependent silicon isotopic variations.• These variations are inherited from…
Formation of chondrules and matrix in Kakangari chondrites
Jens Barosch, Denton S.Ebel, Dominik C. Hezel, Samuel Alpert, Herbert Palme Earth and Planetary Science LettersVolume 542, 15 July 2020, 116286 LINK “Highlights • We determined petrographic and chemical data in components of K chondrites.•…
Explaining the Variations in Isotopic Ratios in Meteoritic Amino AcidsOPEN ACCESS
Michael A. Famiano, Richard N. Boyd, Toshitaka Kajino, Satoshi Chiba, Yirong Mo, Takashi Onaka, Toshi Suzuki PDF (OPEN ACCESS) “Measurements of the isotopic abundances in meteoritic amino acids have found enhancements of 2H/H, 15N/14N, and…
Concerns of Organic Contamination for Sample Return Space MissionsOPEN ACCESS
Queenie Hoi Shan Chan, Rhonda Stroud, Zita Martins & Hikaru Yabuta Space Science Reviews volume 216, Article number: 56 (2020) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Analysis of organic matter has been one of the major…
Evidence for sodium-rich alkaline water in the Tagish Lake parent body and implications for amino acid synthesis and racemizationOPEN ACCESS
Lee F. White, Kimberly T. Tait, Brian Langelier, Elizabeth A. Lymer, Ana Černok, Tanya V. Kizovski, Chi Ma, Oliver Tschauner, and Richard I. Nicklin PNAS, first published May 11, 2020 LINK (OPEN ACCESS)PDF (OPEN ACCESS)…
Organic Matter in the Solar System—Implications for Future on-Site and Sample Return MissionsOPEN ACCESS
Zita Martins, Queenie Hoi Shan Chan, Lydie Bonal, Ashley King & Hikaru Yabuta Space Science Reviews, Volume 216, Article number: 54 (2020) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Solar system bodies like comets, asteroids, meteorites and…
The Non-carbonaceous–Carbonaceous Meteorite DichotomyOPEN ACCESS
T. Kleine, G. Budde, C. Burkhardt, T. S. Kruijer, E. A. Worsham, A. Morbidelli & F. Nimmo Space Science Reviews, Volume 216, Article number: 55 (2020) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The isotopic dichotomy between…
What is the Oxygen Isotope Composition of Venus? The Scientific Case for Sample Return from Earth’s “Sister” PlanetOPEN ACCESS
Richard C. Greenwood & Mahesh Anand Space Science Reviews, Volume 216, Article number: 52 (2020) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Venus is Earth’s closest planetary neighbour and both bodies are of similar size and mass….
An analytical formulation of isotope fractionation due to self-shielding
J.R. Lyons Geochimica et Cosmochimica Acta LINK “Isotope fractionation due to photochemical self-shielding is believed to be responsible for the enrichment of inner solar system planetary materials in the rare isotopes of carbon, nitrogen, and…
Evidence of extensive lunar crust formation in impact melt sheets 4,330 Myr ago
L. F. White, A. Černok, J. R. Darling, M. J. Whitehouse, K. H. Joy, C. Cayron, J. Dunlop, K. T. Tait & M. Anand Nature Astronomy (2020) LINK “Accurately constraining the formation and evolution of…
Qarabawi’s Camel Charm: Tracing the meteoritic origins of a cultural artifact
Rhiannon G. Mayne, Catherine M. Corrigan, Timothy J. McCoy, James M. D. Day, Timothy R. Rose Meteoritics & Planetary ScienceVersion of Record online:09 May 2020 LINK “Qarabawi’s Camel Charm was acquired from Abdullah Qarabawi of…
Combined micro X-ray fluorescence and micro computed tomography for the study of extraterrestrial volcanic rocks. The case of North West Africa (NWA) 8657: A shergottite martian meteorite
Carlo Porfido, Paola Manzari, Ignazio Allegretta, Roberto Terzano, Olga De Pascale, Giorgio S. Senesi TalantaVolume 217, 1 September 2020, 121114 LINK “Highlights • μ-XRF and μ-CT were combined to describe the mineralogy and microstructures of…
Effects of solar activity on production rates of short‐lived cosmogenic radionuclides
Juraj Beno, Robert Breier, Jozef Masarik Meteoritics & Planetary ScienceVersion of Record online:08 May 2020 LINK “The solar activity can be quantified by solar modulation parameter Φ that affects the heliospheric magnetic field. This activity…
The selenium isotope composition of lunar rocks: Implications for the formation of the Moon and its volatile loss
Hauke Vollstaedt, Klaus Mezger, Ingo Leya Earth and Planetary Science LettersVolume 542, 15 July 2020, 116289 LINK “Highlights • Lunar mare basalts are ∼1‰ heavier in δ82/78 Se than chondrites and the Earth.• Lunar soils…
Onset of magma ocean solidification on Mars inferred from Mn-Cr chronometry
S. Kruijer, Lars E. Borg, Josh Wimpenny, Corliss K. Sio Earth and Planetary Science LettersAvailable online 7 May 2020, 116315 LINK “Highlights • There are no resolvable radiogenic 53Cr variations among martian meteorites.• Mantle differentiation…
Convective activity in a Martian magma chamber recorded by P‐zoning in Tissint olivineOPEN ACCESS
N. Mari, L. J. Hallis, L. Daly, M. R. Lee Meteoritics & Planetary ScienceVersion of Record online:07 May 2020 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Tissint Martian meteorite is an unusual depleted olivine‐phyric shergottite, reportedly…
Strengths of meteorites—An overview and analysis of available data
Leos Pohl, Daniel T. Britt Meteoritics & Planetary ScienceVersion of Record online:07 May 2020 LINK “We report all available measurements on strength of meteorites, primarily focusing on compressive and tensile strengths and supplementary data such…
Fe2+ partitioning between the M1 and M2 sites in silicate crystals in some stony and stony-iron meteorites studied using X-ray diffraction and Mössbauer spectroscopy
A.A. Maksimova, E.V. Petrova, A.V. Chukin, M.I. Oshtrakh Journal of Molecular StructureVolume 1216, 15 September 2020, 128391 LINK “Highlights • XRD and Mössbauer spectroscopy of some stony and stony-iron meteorites.• Determination of Fe2+ partitioning among…
The effects of secondary processing in the unique carbonaceous chondrite Miller Range 07687
Pierre Haenecour, Christine Floss, Adrian J. Brearley, Thomas J. Zega Meteoritics & Planetary ScienceFirst Published: 3 May 2020 LINK “Our detailed mineralogical, elemental, and isotopic study of the Miller Range (MIL) 07687 meteorite showed that,…
Molecular evolution during hydrothermal reactions from formaldehyde and ammonia simulating aqueous alteration in meteorite parent bodies
Yoko Kebukawa, Satoru Nakashima, Hajime Mita, Yasuji Muramatsu, Kensei Kobayashi IcarusIn Press, Journal Pre-proof, Available online 3 May 2020 LINK “Highlights • Using an in-situ heatable liquid cell, we followed reaction kinetics simulating aqueous alteration…
Cosmic‐ray exposure age and heliocentric distance of the parent body of the Rumuruti chondrite PRE 95410
Tomoya Obase, Daisuke Nakashima, Tomoki Nakamura, Keisuke Nagao Meteoritics & Planetary Science LINK “We measured concentrations and isotopic ratios of noble gases in the Rumuruti (R) chondrite Mount Prestrud (PRE) 95410, a regolith breccia exhibiting…
Sectioning effects of porphyritic chondrules: Implications for the PP/POP/PO classification and correcting modal abundances of mineralogically zoned chondrulesOPEN ACCESS
Jens Barosch, Dominik C. Hezel, Lena Sawatzki, Lucia Halbauer, Yves Marrocchi Meteoritics & Planetary Science LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Mineralogically zoned chondrules are a common chondrule type in chondrites. They consist of olivine cores,…
Early Impact Events on Chondritic Parent Bodies: Insights From NWA 11004, Reclassified as an LL7 Breccia
Y. Li, A. E. Rubin, W. Hsu, K. Ziegler JGR: Planets LINK “The NWA 11004 ordinary chondrite (OC) can provide insights into the complex petrogenetic processes of the early solar system. Although originally classified as…
Geochemistry and Petrogenesis of Northwest Africa (NWA) 10401: A new type of the Mg‐suite rocks?
Juliane Gross, Annette Hilton, Tabb C. Prissel, Jacob B. Setera, Randy L. Korotev, Abigail Calzada‐Diaz Journal of Geophysical Research: Planets LINK “The petrogenetic models of the lunar crust are built on the returned Apollo and…
Weak Magnetic Fields in the Outer Solar Nebula Recorded in CR Chondrites
Roger R. Fu, Pauli Kehayias, Benjamin P. Weiss, Devin L. Schrader, Xue‐Ning Bai, Jacob B. Simon JGR PlanetsVolume 125, 5 May 2020 LINK ” – Paleomagnetic measurements of carbonaceous chondrites can provide important constraints on…
The spatial flux of Earth’s meteorite falls found via Antarctic dataOPEN ACCESS
G.W. Evatt, A.R.D. Smedley, K.H. Joy, L. Hunter, W.H. Tey, I.D. Abrahams, L. Gerrish Geology, 29 April 2020 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Contemporary calculations for the flux of extraterrestrial material falling to the Earth’s…
Dynamic evolution of major element chemistry in protoplanetary disks and its implications for chondrite formationOPEN ACCESS
Yoshinori Miyazaki, Jun Korenaga PDF (OPEN ACCESS) “Chondrites are the likely building blocks of Earth, and identifying the group of chondrite that best represents Earth is a key to resolving the state of the early…
The Renazzo-like carbonaceous chondrites as resources to understand the origin, evolution, and exploration of the Solar System
N.M. Abreu, J.C. Aponte, E.A. Cloutis, A.N. Nguyen GeochemistryIn Press, Journal Pre-proof, Available online 27 April 2020 LINK “We present here a review of the characteristics of CR carbonaceous chondrite meteorites. Over the past three…
Meteorite fall (> 15 kg) 24 April 2020 ~ 8.27 p.m. (5.27 p.m. UTC) Kombuini, Kimicha and Gatuto villages, Kirinyaga County, Kenya
Last update: 5 May 2020 A meteorite (~ 200 grams, an ordinary chondrite) is reported to have fallen through the roof of Mary Wamburu’s home and shattered on the concrete floor below. Mrs Wamburu was…
In-situ preservation of nitrogen-bearing organics in Noachian Martian carbonatesOPEN ACCESS
Mizuho Koike, Ryoichi Nakada, Iori Kajitani, Tomohiro Usui, Yusuke Tamenori, Haruna Sugahara & Atsuko Kobayashi Nature Communications, Volume 11, Article number: 1988 (2020) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Understanding the origin of organic material on…
The most primitive mesosiderite Northwest Africa 1878, subgroup 0
M. Kimura, N. Sugiura, A. Yamaguchi, K. Ichimura Meteoritics & Planetary ScienceFirst Published: 23 April 2020 LINK “All mesosiderites previously reported were subjected to thermal metamorphism and/or partial melting on the parent body. Therefore, their…
The isotopic composition of volatiles in the unique Bench Crater carbonaceous chondrite impactor found in the Apollo 12 regolith
K.H. Joy, R. Tartèse, S. Messenger, M.E. Zolensky, Y. Marrocchi, D.R. Frank, D.A. Kring Earth and Planetary Science LettersVolume 540, 15 June 2020, 116265 LINK “Highlights • The lunar regolith has accumulated volatiles from impacting…
The effects of atmospheric entry heating on organic matter in interplanetary dust particles and micrometeorites
M.E.I. Riebe, D.I. Foustoukos, C.M.O’D. Alexander, A. Steele, G.D. Cody, B.O. Mysen, L.R. Nittler Earth and Planetary Science LettersVolume 540, 15 June 2020, 116266 LINK “Highlights • Atmospheric entry heating altered the organic matter in…
New implications for the origin of the IAB main group iron meteorites and the isotopic evolution of the noncarbonaceous (NC) reservoir
Connor D.Hilton, Richard J.Walker Earth and Planetary Science LettersVolume 540, 15 June 2020, 116248 LINK “Highlights • The IAB-MG iron meteorites have a μ182W value of −295 ± 3.• The IAB-MG are constrained to have…
Petrography, geochemistry and classification of ten new iron meteorites from Northwest Africa and Chile
Massimo D’Orazio Periodico di MineralogiaVol 89, No 1 (2020) LINK “I present detailed petrographic descriptions and major- and trace-element data on a set of ten new iron meteorites (irons) from Nortwest Africa and the Atacama…
Earliest evidence of a death and injury by a meteorite
O. Unsalan, A. Bayatlı, P. Jenniskens Meteoritics & Planetary ScienceFirst Published: 22 April 2020 LINK “Our planet experiences falls of meteorites with different airburst and ground impact risk. Some of these meteors can survive after…
Concepts of the Small Body Sample Return Missions – the 1st 10 Million Year Evolution of the Solar System
Yangting Lin, Yonghe Zhang, Sen Hu, Yuchen Xu, Weijia Zhou, Shijie Li, Wei Yang, Yang Gao, Mingtao Li, Qingzhu Yin, Douglas Lin & Wing Ip Space Science Reviews, Volume 216, Article number: 45 (2020)Published: 20…
Incremental melting in the ureilite parent body: Initial composition, melting temperatures, and melt compositions
Max Collinet, Timothy L. Grove Meteoritics & Planetary ScienceFirst Published: 19 April 2020 LINK “Ureilites are carbon‐rich ultramafic achondrites that have been heated above the silicate solidus, do not contain plagioclase, and represent the melting…
Hydrogen Isotopic Variations in the ShergottitesOPEN ACCESS
Shuai Wang and Sen Hu Geosciences 2020, 10(4), 148 LINK (OPEN ACCESS)PDF (DOWNLOAD) “Hydrogen isotopes in the shergottite Martian meteorites are among the most varied in Mars laboratory samples. By collating results of previous studies…
Th/U variability in Allende chondrules
Janne Blichert-Toft, Christa Göpel, Marc Chaussidon, F. Albarède Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 17 April 2020 LINK “Lead isotope compositions were measured on both single and combined chondrules from the CV3…
Hypervelocity cratering and disruption of the Northwest Africa 4502 carbonaceous chondrite meteorite: Implications for crater production, catastrophic disruption, momentum transfer and dust production on asteroids
George J. Flynn, Daniel D. Durda, Mason J. Molesky, Brian A. May, Spenser N. Congram, Colleen L. Loftus, Jacob R. Reagan, Melissa M. Strait, Robert J. Macke Planetary and Space ScienceIn Press, Journal Pre-proof, Available…
Meteorite transport—Revisited II
Jack Wisdom Meteoritics & Planetary ScienceFirst Published: 16 April 2020 LINK “In Wisdom (2017), I presented new simulations of meteorite transport from the chaotic zones associated with major resonances in the asteroid belt: the ν6…
Accretion of a large LL parent planetesimal from a recently formed chondrule populationOPEN ACCESS
Graham H. Edwards and Terrence Blackburn Science Advances 15 Apr 2020:Vol. 6, no. 16, eaay8641DOI: 10.1126/sciadv.aay8641 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Chondritic meteorites, derived from asteroidal parent bodies and composed of millimeter-sized chondrules, record the…
A review of the chondrite–achondrite transition, and a metamorphic facies series for equilibrated primitive stony meteorites
Andrew G. Tomkins, Tim E. Johnson, Jennifer T. Mitchell Meteoritics & Planetary ScienceFirst Published: 13 April 2020 LINK “Here, the petrological features of numerous primitive achondrites and highly equilibrated chondrites are evaluated to review and…
Mineralogy and petrology of dark clasts in the Allan Hills 76005 polymict eucrite pairing group
Kevin Righter, Alexander P. Holmwood Meteoritics & Planetary Science LINK “The Allan Hills 76005 polymict eucrite pairing group consists of 15 paired masses recovered during six different field seasons in the Transantarctic Mountains. Although this…
Origin and age of metal veins in Canyon Diablo graphite nodules
Connor D. Hilton, Richard D. Ash, Philip M. Piccoli, David A. Kring, Timothy J. McCoy, Richard J. Walker Meteoritics & Planetary ScienceFirst Published: 9 April 2020 LINK “Previous studies attributed the origin of metal veins…
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 Paleomagnetism
James F. J. Bryson, Benjamin P. Weiss, Eduardo A. Lima, Jérôme Gattacceca, and William S. Cassata The Astrophysical Journal, Volume 892, Number 2 LINK Asteroid-sized bodies are predicted to have been scattered throughout the solar…
Study of the Composition of Aba Panu (L3) Meteorite Degassing Products
A. V. Stennikov, V. S. Fedulov, S. G. Naimushin, N. V. Dushenko & S. A. Voropaev Solar System Research, Volume 54, pages 150–154 (2020) LINK “The study of the degassing of primitive cosmic matter (in…
Terrestrial Alteration Mineral Assemblages in the NWA 10416 Olivine Phyric Shergottite
J.D. Piercy, J.C. Bridges, L.J. Hicks, J.L. MacArthur, R.C. Greenwood, I.A. Franchi Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 4 April 2020 LINK “We report on the alteration history of the olivine-phyric,…
Cascade Model for Planetesimal Formation by Turbulent Clustering
Thomas Hartlep and Jeffrey N. Cuzzi The Astrophysical Journal Volume 892, Number 2, 2020 April 1 LINK “We use a newly developed cascade model of turbulent concentration of particles in protoplanetary nebulae to calculate several…
A Global Fireball ObservatoryOPEN ACCESS
H. A. R. Devillepoix, M. Cupák, P. A. Bland, E. K. Sansom, M. C. Towner, R. M. Howie, B. A. D. Hartig, T. Jansen-Sturgeon, P. M. Shober, S. L. Anderson, G. K. Benedix, D. Busan,…
The origin and fate of volatile elements on Earth revisited in light of noble gas data obtained from comet 67P/Churyumov-GerasimenkoOPEN ACCESS
David V. Bekaert, Michael W. Broadley & Bernard Marty Scientific Reports, Volume 10, Article number: 5796 (2020) LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The origin of terrestrial volatiles remains one of the most puzzling questions…
53Mn and 60Fe in iron meteorites—New data, model calculations
Ingo Leya, Jean‐Christophe David, Thomas Faestermann, Michaela Froehlich, Niko Kivel, Dominik Koll, Gunther Korschinek, Sarah McIntyre, Silke Merchel, Stefan Pavetich, Georg Rugel, Dorothea Schumann, Thomas Smith, Anton Wallner Meteoritics & Planetary Science First published: 31…
Alkali magmatism on a carbonaceous chondrite planetesimal
Jérôme Aléon, Alice Aléon-Toppani, Bernard Platevoet, Jacques-Marie Bardintzeff, Kevin D. McKeegan, and François Brisset PNAS, first published March 30, 2020 LINK “Recent isotopic and paleomagnetic data point to a possible connection between carbonaceous chondrites and…
Evaluation of terrestrial carbonaceous matter aromatization by Raman spectroscopy and its application to C chondrites
Jaques S. Schmidt, Ruth Hinrichs Meteoritics & Planetary Science LINK “A Raman method to estimate the aromatization degree of carbonaceous matter (CM) was established, and calibrated by literature data respecting differences in acquisition procedures. The…
Multiple early-formed water reservoirs in the interior of Mars
Jessica J. Barnes, Francis M. McCubbin, Alison R. Santos, James M. D. Day, Jeremy W. Boyce, Susanne P. Schwenzer, Ulrich Ott, Ian A. Franchi, Scott Messenger, Mahesh Anand & Carl B. Agee Nature Geoscience (2020)…
The effect of progressive space weathering on the organic and inorganic components of a carbonaceous chondrite
M.S. Thompson, R.V. Morris, S.J. Clemett, M.J. Loeffler, D. Trang, L.P. Keller, R. Christoffersen, D.G. Agresti Icarus In Press, Journal Pre-proof, Available online 27 March 2020 LINK “Highlights • Progressive space weathering of a carbonaceous…
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…
Radionuclides in Chassigny and Nakhla meteorites of Mars origin: Implications for their pre-atmospheric sizes and cosmic-ray exposure ages
P.P. Povinec, I. Sýkora, R.J. Macke, J. Tóth, L. Kornoš, V. Porubčan Planetary and Space Science In Press, Journal Pre-proof, Available online 26 March 2020 LINK “Highlights • Two Martian meteorites, Chassigny and Nakhla, were…
Superconductivity found in meteorites
James Wampler, Mark Thiemens, Shaobo Cheng, Yimei Zhu, and Ivan K. Schuller PNAS, first published March 23, 2020 LINK “Meteorites can contain a wide range of material phases due to the extreme environments found in…
Supply of phosphate to early Earth by photogeochemistry after meteoritic weathering
Dougal J. Ritson, Stephen J. Mojzsis & John. D. Sutherland Nature Geoscience (2020) Published: 23 March 2020 LINK “During terrestrial differentiation, the relatively small amount of phosphorus that migrated to the lithosphere was incorporated into…
Potassium Isotope Compositions of Carbonaceous and Ordinary Chondrites: Implications on the Origin of Volatile Depletion in the Early Solar SystemOPEN ACCESS
Hannah Bloom, Katharina Lodders, Heng Chen, Chen Zhao,Zhen Tian, Piers Koefoed, Mária K.Pető, Yun Jiang, Kun Wang (王昆) Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 23 March 2020 PDF (OPEN ACCESS) LINK…
Solar radiative transfer in Antarctic blue ice: spectral considerations, subsurface enhancement, inclusions, and meteoritesOPEN ACCESS
Andrew R. D. Smedley, Geoffrey W. Evatt, Amy Mallinson, and Eleanor Harvey The Cryosphere, 14, 789–809, 2020 Published: 05 Mar 2020 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “We describe and validate a Monte Carlo model…
Exploring the efficiency of stepwise dissolution in removal of stubborn non-radiogenic Pb in chondrule U-Pb dating
Renaud Merle, Yuri Amelin, Qing-Zhu Yin, Magdalena H. Huyskens, Matthew E. Sanborn, Kazuhide Nagashima, Katsuyuki Yamashita, Trevor R. Ireland, Alexander N.Krot, Melanie J. Sieber Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 18…
Mass-independent fractionation of titanium isotopes and its cosmochemical implications
François Robert, Romain Tartèse, Guillaume Lombardi, Peter Reinhardt, Mathieu Roskosz, Béatrice Doisneau, Zhengbin Deng & Marc Chaussidon Nature Astronomy (2020) LINK “Isotopes of heavy elements are produced in various amounts by nuclear processes in stars….
Early silica crust formation in planetesimals by metastable silica-rich liquid immiscibility or cristobalite crystallisation: the possible origin of silica-rich chondrulesOPEN ACCESS
François Faure Scientific Reports 10, Article number: 4765 (2020) LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The formation and differentiation processes of planetesimals—small bodies in the solar system—remain actively debated. Planetesimal differentiation is known to have…
Micrometeorites: Insights into the flux, sources and atmospheric entry of extraterrestrial dust at Earth
Matthew J. Genge, Matthias Van Ginneken, Martin D. Suttle Planetary and Space Science In Press, Journal Pre-proof, Available online 16 March 2020 LINK “Micrometeorites (MMs) provide constraints on the flux and sources of extraterrestrial dust…
WATER AND HEAT: NEW CONSTRAINTS ON THE EVOLUTION OF THE CV CHONDRITE PARENT BODY
Lydie Bonal, Jérôme Gattacceca, Alexandre Garenne, Jolantha Eschrig, Pierre Rochette, Lisa Krämer Ruggiu Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 16 March 2020 LINK “This paper focuses on the post-accretion history of…
Highly porous nature of a primitive asteroid revealed by thermal imaging
Tatsuaki Okada, Tetsuya Fukuhara, Satoshi Tanaka, Makoto Taguchi, Takehiko Arai, Hiroki Senshu, Naoya Sakatani, Yuri Shimaki, Hirohide Demura, Yoshiko Ogawa, Kentaro Suko, Tomohiko Sekiguchi, Toru Kouyama, Jun Takita, Tsuneo Matsunaga, Takeshi Imamura, Takehiko Wada, Sunao…
The orbital clusters among the near Earth asteroidsOPEN ACCESS
Tadeusz J. Jopek PDF (OPEN ACCESS) “Fifteen orbital clusters (associations) were identified among∼20000near-Earth asteroids(NEAs). All associations were found with a high statisticalreliability using a single link-age cluster analysis algorithm and three orbital similarity functions. The…
Subsolar Al/Si and Mg/Si ratios of non-carbonaceous chondrites reveal planetesimal formation during early condensation in the protoplanetary diskOPEN ACCESS
A. Morbidelli, G. Libourel, H. Palme, S.A. Jacobson, D.C. Rubie Accepted for publication in EPSL PDF (OPEN ACCESS) “The Al/Si and Mg/Si ratios in non-carbonaceous chondrites are lower than the solar (i.e., CI-chondritic) values, in…
Widespread production of silica- and alkali-rich melts at the onset of planetesimal melting
Max Collinet, Timothy L. Grove Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 12 March 2020 LINK “We present the results of melting experiments on a suite of carbonaceous and ordinary chondritic compositions…
Formation of primitive achondrites by partial melting of alkali-undepleted planetesimals in the inner solar system
Max Collinet, Timothy L. Grove Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 12 March 2020 LINK “Acapulcoites-lodranites, ureilites, brachinites, brachinite-like achondrites and winonaites are the main groups of primitive achondrites. They are…
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…
Ruthenium isotope vestige of Earth’s pre-late-veneer mantle preserved in Archaean rocks
Mario Fischer-Gödde, Bo-Magnus Elfers, Carsten Münker, Kristoffer Szilas, Wolfgang D. Maier, Nils Messling, Tomoaki Morishita, Martin Van Kranendonk & Hugh Smithies Nature, Volume 579, pages 240–244 (2020) Published: 11 March 2020 LINK “The accretion of…
Distinct oxygen isotope compositions of the Earth and Moon
Erick J. Cano, Zachary D. Sharp & Charles K. Shearer Nature Geoscience (2020) LINK “The virtually identical oxygen isotope compositions of the Earth and Moon revealed by Apollo return samples have been a challenging constraint…
Orbit and origin of the LL7 chondrite Dishchii’bikoh (Arizona)
Peter Jenniskens, Nick Moskovitz, Laurence A. J. Garvie, Qing‐Zhu Yin, J. Andreas Howell, Dwayne L. Free, Jim Albers, David Samuels, Marc D. Fries, Prajkta Mane, Daniel R. Dunlap, Karen Ziegler, Matthew E. Sanborn, Qin Zhou,…
Three meteorite finds of bolide above Novo Mesto, Lower Carniola, Slovenia at 09:30:34 UT on 28 February 2020
Last update: 14 March 2020 The first meteorite, an ordinary chondrite (L-chondrite ?), was found accidentally by Gregor Kos and his son at location 45°49’00.5″N, 15°06’44.9″E in the village Prečna, near Novo Mesto, Slovenia at…
Visible–near infrared spectral indices for mapping mineralogy and chemistry with OSIRIS‐REx
Hannah H. Kaplan, Victoria E. Hamilton, Ellen S. Howell, Scott F. Anderson, M. Antonella Barrucci, John Brucato, Thomas H. Burbine, Beth E. Clark, Ed A. Cloutis, Harold C. Connolly Jr., Elisabetta Dotto, Joshua P. Emery,…
Experimental partitioning of trace elements into schreibersite with applications to IIG iron meteorites
Nancy L. Chabot, Rachel H. Cueva, Andrew W. Beck, Richard D. Ash Meteoritics & Planetary Science First Published: 4 March 2020 LINK “Some of the defining characteristics of the IIG iron meteorite group are their…
Accretion of the Earth—Missing Components?OPEN ACCESS
K. Mezger, M. Schönbächler & A. Bouvier Space Science Reviews, Volume 216, Article number: 27 (2020) Published: 04 March 2020 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Primitive meteorites preserve the chemical and isotopic composition of…
The brecciated texture of polymict eucrites: Petrographic investigations of unequilibrated meteorites from the Antarctic Yamato collectionOPEN ACCESS
Christian Vollmer, Stella Rombeck, Julia Roszjar, Adam R. Sarafian, Stephan Klemme Meteoritics & Planetary Science LINK (OPEN ACCESS) PDF (OPEN ACCESS) “We report on the petrography and mineralogy of five Yamato polymict eucrites to better…
Amorphous silicates in the matrix of Semarkona: The first evidence for the localized preservation of pristine matrix materials in the most unequilibrated ordinary chondrites
E. Dobrică, A. J. Brearley Meteoritics & Planetary Science LINK “We have investigated the fine‐grained matrix of the least‐altered unequilibrated ordinary chondrite (UOC) Semarkona (LL3.00) using different electron microscope techniques. Unlike previous studies, which found…
Chemical and physical properties of Žďár nad Sázavou L chondrite and porosity differentiation using computed tomography
Dominika Kalasová, Tomáš Zikmund, Pavel Spurný, Jakub Haloda, Jiří Borovička, Jozef Kaiser Meteoritics & Planetary Science LINK “A very bright and long bolide was observed over the eastern part of the Czech Republic during late…
Unique achondrite Northwest Africa 11042: Exploring the melting and breakup of the L chondrite parent body
Zoltán Váci, Carl B. Agee, Munir Humayun, Karen Ziegler, Yemane Asmerom, Victor Polyak, Henner Busemann, Daniela Krietsch, Matthew Heizler, Matthew E. Sanborn, Qing‐Zhu Yin Meteoritics & Planetary Science First Published: 2 March 2020 LINK “Northwest…
Formation of ferroan dacite by lunar silicic volcanism recorded in a meteorite from the MoonOPEN ACCESS
Hiroshi Nagaoka, Timothy J. Fagan, Masahiro Kayama, Yuzuru Karouji, Nobuyuki Hasebe & Mitsuru Ebihara Progress in Earth and Planetary Science, Volume 7, Article number: 12 (2020) LINK (OPEN ACCESS) PDF (OPEN ACCESS) “An igneous clast…
Heavy halogen geochemistry of martian shergottite meteorites and implications for the halogen composition of the depleted shergottite mantle source
Patricia L. Clay; Katherine H. Joy; Brian O’Driscoll; Henner Busemann; Lorraine Ruzié-Hamilton; Ray Burgess; Jonathan Fellowes; Bastian Joachim-Mrosko; John Pernet-Fisher; Stanislav Strekopytov; Christopher J. Ballentine American Mineralogist, March 01, 2020, Vol.105, 289-306 LINK “Volatile elements…
Physically based alternative to the PE criterion for meteoroidsOPEN ACCESS
Manuel Moreno-Ibáñez, Maria Gritsevich, Josep M. Trigo-Rodríguez, Elizabeth A. Silber PDF (OPEN ACCESS) “Meteoroids impacting the Earth atmosphere are commonly classified using the PE criterion. This criterion was introduced to support the identification of the…
In situ analysis of platinum group elements in equilibrated ordinary chondrite kamacite and taenite
Cosette M. Gilmour, Christopher D. K. Herd Meteoritics & Planetary Science First Published: 29 February 2020 LINK “Platinum group element (PGE) concentrations have been determined in situ in ordinary chondrite kamacite and taenite grains via…
Observations, meteorites, and models: A pre‐flight assessment of the composition and formation of (16) Psyche
L.T. Elkins‐Tanton, E. Asphaug, J. F. Bell III, H. Bercovici, B. Bills, R. Binzel, W. F. Bottke, S. Dibb, D. J. Lawrence, S. Marchi, T. J. McCoy, R. Oran, R. S. Park, P. N. Peplowski,…
Hemolithin: a Meteoritic Protein containing Iron and LithiumOPEN ACCESS
Malcolm. W. McGeoch, Sergei Dikler, Julie E. M. McGeoch PDF (OPEN ACCESS) “This paper characterizes the first protein to be discovered in a meteorite. Amino acid polymers previously observed in Acfer 086 and Allende meteorites…
Extraterrestrial amino acids and L‐enantiomeric excesses in the CM2 carbonaceous chondrites Aguas Zarcas and Murchison
Daniel P. Glavin, Jamie E. Elsila, Hannah L. McLain, José C. Aponte, Eric T. Parker, Jason P. Dworkin, Dolores H. Hill, Harold C. Connolly, Dante S. Lauretta Meteoritics & Planetary Science First Published: 25 February…
Formation of lunar highlands anorthosites
Xiaoqing Xu, Hejiu Hui, Wei Chen, Shichun Huang, Clive R. Neal, Xisheng Xu Earth and Planetary Science Letters Volume 536, 15 April 2020, 116138 LINK “Highlights • We report major and trace element contents of…
Zhob (18.96 kg, H3-4, S2) registered as witnessed fall in Zhob District, Balochistan, Pakistan on 9 January 2020
LINK “Zhob 31°22’N, 69°34’E Baluchistan, Pakistan Confirmed fall: 2020 Jan 9 Classification: Ordinary chondrite (H3-4) History: (Michael Farmer, Arizona) A bright fireball followed by sonic booms was seen and heard around the northern part of…
Mass Distributions of Meteorites
Alberto S Betzler, Ernesto P Borges Monthly Notices of the Royal Astronomical Society, staa521 Published: 21 February 2020 LINK “For at least five decades the study of the mass distribution of meteorites has been carried…
The properties of cm–sized iron meteoroids
Vlastimil Vojáček, Jiří Borovička, Pavel Spurný, David Čapek Planetary and Space Science LINK “Highlights • Eight iron meteoroids were found among 220 fireball spectra. • cm-sized iron meteoroids have diverse asteroidal orbits. • According to…
Unique angrite-like fragments in a CH3 chondrite reveal a new basaltic planetesimal
Ai-Cheng Zhang, Noriyuki Kawasaki, Minami Kuroda, Yang Li, Hua-Pei Wang, Xue-Ning Bai, Naoya Sakamoto, Qing-Zhu Yin, Hisayoshi Yurimoto Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 19 February 2020 LINK “Most meteorites are…
Dwell time at high pressure of meteorites during impact ejection from Mars
T.J. Bowling, B.C. Johnson, S.E. Wiggins, E.L. Walton, H.J.Melosh, T.G. Sharp Icarus In Press, Journal Pre-proof, Available online 13 February 2020 LINK “Highlights • We simulate impacts to investigate the dwell time of Martian meteorites….
Altered primary iron sulfides in CM2 and CR2 carbonaceous chondrites: Insights into parent body processes
S. A. Singerling, A. J. Brearley Meteoritics & Planetary Science First Published: 13 February 2020 LINK “The presence of primary iron sulfides that appear to be aqueously altered in CM and CR carbonaceous chondrites provides…
Iron isotope evidence for very rapid accretion and differentiation of the proto-EarthOPEN ACCESS
Martin Schiller, Martin Bizzarro, and Julien Siebert Science Advances 12 Feb 2020: Vol. 6, no. 7, eaay7604 DOI: 10.1126/sciadv.aay7604 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Nucleosynthetic isotope variability among solar system objects provides insights into…
A compositionally heterogeneous martian mantle due to late accretionOPEN ACCESS
Simone Marchi, Richard J. Walker and Robin M. Canup Science Advances 12 Feb 2020: Vol. 6, no. 7, eaay2338 DOI: 10.1126/sciadv.aay2338 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The approximately chondritic estimated relative abundances of highly…
Linking asteroids and meteorites to the primordial planetesimal populationOPEN ACCESS
Richard C. Greenwood, Thomas H. Burbine, Ian A. Franchi Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 11 February 2020 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Meteorites provide a unique insight into early…
Galactic cosmic ray effects on iron and nickel isotopes in iron meteoritesOPEN ACCESS
David L. Cook, Ingo Leya, Maria Schönbächler Meteoritics & Planetary Science LINK (OPEN ACCESS) PDF (OPEN ACCESS) “We present model calculations for cosmogenic production rates in order to quantify the potential effects of spallation and…
The violent collisional history of aqueously evolved (2) Pallas
Michaël Marsset, Miroslav Brož, Pierre Vernazza, Alexis Drouard, Julie Castillo-Rogez, Josef Hanuš, Matti Viikinkoski, Nicolas Rambaux, Benoît Carry, Laurent Jorda, Pavel Ševeček, Mirel Birlan, Franck Marchis, Edyta Podlewska-Gaca, Erik Asphaug, Przemyslaw Bartczak, Jérôme Berthier, Fabrice…
Carbon isotopic evolution of aqueous fluids in CM chondrites: Clues from in-situ isotope analyses within calcite grains in Yamato-791198
Wataru Fujiya, Yuto Aoki, Takayuki Ushikubo, Ko Hashizume, Akira Yamaguchi Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 10 February 2020 LINK “We report the variability in carbon and oxygen isotopic compositions, chemical…
A model of the 3-μm hydration band with Exponentially Modified Gaussian (EMG) profiles: Application to hydrated chondrites and asteroids
S. Potin, S. Manigand, P. Beck, C. Wolters, B. Schmitt Icarus In Press, Journal Pre-proof, Available online 7 February 2020 “Highlights • Exponentially Modified Gaussians are used to model the shape of the 3-μm band….
Atom probe tomography of space‐weathered lunar ilmenite grain surfacesOPEN ACCESS
Jennika Greer, Surya. S. Rout, Dieter Isheim, David N. Seidman, Rainer Wieler, Philipp R. Heck Meteoritics & Planetary Science First published: 06 February 2020 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The surfaces of airless bodies,…
Cadmium isotopes in chondrites and acid leachates: Nucleosynthetic homogeneity and a monitor for thermal neutron capture effects
Eniko R. Toth, Manuela A. Fehr, Matthias Friebel, Maria Schönbächler Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 6 February 2020 LINK “Nucleosynthetic isotope variations are well documented for refractory elements in meteorites…
Machiite, Al2Ti3O9, a new oxide mineral from the Murchison carbonaceous chondrite: A new ultra-refractory phase from the solar nebula
Alexander N. Krot, Kazuhide Nagashima, George R. Rossman American Mineralogist (2020) 105 (2): 239–243. LINK “Machiite (IMA 2016-067), Al2Ti3O9, is a new mineral that occurs as a single euhedral crystal, 4.4 μm in size, in…
Analyses of radionuclides in the Oued Awlitis 001 and Galb Inal lunar meteorites by HPGe gamma-ray spectrometry
Pavel P. Povinec, Ivan Sýkora, Ludovic Ferrière, Christian Koeberl Journal of Radioanalytical and Nuclear Chemistry, pp 1–9 LINK “Highly sensitive nondestructive HPGe gamma-ray spectrometry was used for the analysis of the cosmogenic (26Al) and primordial…
Examining the compositions of impactors striking the Moon using Apollo impact melt coats and anorthositic regolith breccia meteorites
Eleanor C. McIntosh, James M.D. Day, Yang Liu, Courtney Jiskoot Geochimica et Cosmochimica Acta Available online 1 February 2020 LINK “Impactors striking the Moon since the formation of its crust have left an indelible imprint…
New Estimation of Presolar Grain Abundances in the Paris Meteorite
M. J. Verdier-Paoletti, L. R. Nittler, J. Wang 51st Lunar and Planetary Science Conference (2020), Abstract #2523 PDF (OPEN ACCESS) “C-rich and O-rich stardust grains have been extensively studied over the last decades [1]. Their…
Significance of Primordial Matrix in Mukundpura Carbonaceous Chondrite (CM2)
A. Dutta, D. Raychaudhuri, A. Bhattacharya 51st Lunar and Planetary Science Conference (2020), Abstract #1927 PDF (OPEN ACCESS)
The Aguas Zarcas Meteorite: A Review of Chondrules and Fine-Grained Rims Observed Within a New Carbonaceous Chondrite (CM2) Fall
I. Kouvatsis, J. A. Cartwright 51st Lunar and Planetary Science Conference (2020), Abstract #2512 PDF (OPEN ACCESS)
Distinguishing Between Terrestrial and Extraterrestrial Organic Compounds in the CM2 Aguas Zarcas Carbonaceous Chondrite
L. D. Tunney, P. J. A. Hill, C. D. K. Herd, R. W. Hilts 51st Lunar and Planetary Science Conference (2020), Abstract #1795 PDF (OPEN ACCESS)
Aqueous Alteration in the CM2 Aguas Zarcas Meteorite
L. J. Hicks, J. C. Bridges 51st Lunar and Planetary Science Conference (2020), Abstract #2869 PDF (OPEN ACCESS)
Degree of Aqueous Alteration of the CM Carbonaceous Chondrite Aguas Zarcas: Implications for Understanding Ryugu and Bennu
P. M. C. Martin, M. R. Lee 51st Lunar and Planetary Science Conference (2020), Abstract #1375 PDF (OPEN ACCESS)
Organic Matter in the Aguas Zarcas (CM2) Meteorite: High Abundance of Aliphatic Carbon in Metal-Rich Lithology
Y. Kebukawa, M. E. Zolensly, J. Mathurin, E. Dartois, C. Engrand, J. Duprat, A. Deniset-Besseau, A. Dazzi, M. Fries, T. Ohigashi, D. Wakabayashi, S. Yamashita, Y. Takeichi, Y. Takahashi, M. Kondo, M. Ito, Y. Kodama,…
Spectroscopy and Mineralogy of Aguas Zarcas
D. Takir, K. T. Howard, K. R. Stockstill-Cahill, C. A. Hibbitts, N. Abreu, M. E. Zolensky, M. Fries 51st Lunar and Planetary Science Conference (2020), Abstract #2533 PDF (OPEN ACCESS) Aguas Zarcas is a new…
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…
Northwest Africa 12774 — A New Basaltic/Quenched Angrite
V. H. Hoffmann, K. Wimmer, T. Mikouchi, M. Kaliwoda, R. Hochleitner, M. Funaki, M. Torii, M. Jost 51st Lunar and Planetary Science Conference (2020), Abstract #2323 PDF (OPEN ACCESS) “A new angrite, NWA 12774, was…
Petrology and Chemical Composition of Olivine-Pyroxene-Phyric Quenched Angrite Northwest Africa 12774
A. J. Irving, P. K. Carpenter, J. H. Tepper, M. Righter, T. J. Lapen, H. Busemann 51st Lunar and Planetary Science Conference (2020), Abstract #2399 PDF (OPEN ACCESS) “Angrites are enigmatic achondrites notable for their…
Mineralogy and Petrology of the Northwest Africa 12774 Angrite
H. Hayashi, H. Kim, C. Park, T. Mikouchi, V. H. Hoffmann 51st Lunar and Planetary Science Conference (2020), Abstract #2360 PDF (OPEN ACCESS) “Angrite is one of the oldest basaltic achondrites showing unusual chemistry enriched…
A Water-Rich Proto-Planet Inferred by Tridymite and Pyroxene in the Oldest Igneous Achondrite Northwest Africa 11119
A. Cernok, K. Tait, M. Anand, I. Nicklin, L. White, T. Kizovski, X. Zhao, I. A. Franchi 51st Lunar and Planetary Science Conference (2020), Abstract #1900 PDF (OPEN ACCESS) “The meteorite Northwest Africa (NWA) 11119…
Northwest Africa 12869: Primitive Achondrite from the CR2 Parent Body or Member of a New Meteorite Group?
C. B. Agee, H. Aikin, K. Ziegler 51st Lunar and Planetary Science Conference (2020), Abstract #2292 PDF (OPEN ACCESS) “We report here the classification of a new primitive achondrite, Northwest Africa (NWA) 12869, which is…
