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…
Formation of Libyan Desert Glass: Numerical simulations of melting of silica due to radiation from near‐surface airbursts
Vladimir Svetsov, Valery Shuvalov, Igor Kosarev Meteoritics & Planetary Science First Published: 26 March 2020 LINK “Libyan Desert Glass contains meteoritic material and, therefore, its origin is most likely associated with an impact event. However,…
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…
Concentration of meteoritic free organic matter by fluid transport and adsorptionOPEN ACCESS
C. Potiszil, R. Tanaka, T. Ota, T. Kunihiro, K. Kobayashi, E. Nakamura Geochemical Perspectives Letters 13, 30–35 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Carbonaceous chondrites contain many abiotic organic compounds, some of which are found in…
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 BODYOPEN ACCESS
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 PDF (OPEN ACCESS) Submitted: 13 June 2020 “This…
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 (720 g, L5, S5) of bolide above Novo Mesto, Lower Carniola, Slovenia at 09:30:34 UT on 28 February 2020
Last update: 21 September 2021 The first meteorite, an ordinary chondrite (L5, S5), 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…
Evidence of Cosmic Impact at Abu Hureyra, Syria at the Younger Dryas Onset (~12.8 ka): High-temperature melting at >2200 °COPEN ACCESS
Andrew M. T. Moore, James P. Kennett, William M. Napier, Ted E. Bunch, James C. Weaver, Malcolm LeCompte, A. Victor Adedeji, Paul Hackley, Gunther Kletetschka, Robert E. Hermes, James H. Wittke, Joshua J. Razink, Michael…
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,…
Disk-resolved photometric modeling and properties of asteroid (101955) BennuOPEN ACCESS
D.R. Golish, D.N. DellaGiustina, J.-Y. Li, B.E. Clark, X.-D.Zoub, P.H.Smith, J.L.Rizos, P.H. Hasselmann, C.A.Bennett, S.Fornasier, R.-L.Ballouz, C. Drouet d’Aubigny, B.Rizk, M.G.Daly, O.S. Barnouin, L.Philpott, M.M.Al Asad, J.A.Seabrook, D.S.Laurett Icarus LINK (OPEN ACCESS) “Highlights • The…
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…
A model for meteoroid ablation including melting and vaporization
Bruno Dias, Alessandro Turchi, Eric C. Stern, Thierry E. Magin Icarus In Press, Journal Pre-proof, Available online 3 March 2020 LINK “Highlights • Comparison of a meteoroid ablation model, which comprises melting and vaporization, with…
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 bodyOPEN ACCESS
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 PDF…
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…
Sr-Nd-Pb isotope systematics of Australasian tektites: Implications for the nature and composition of target materials and possible volatile loss of Pb
Lukáš Ackerman, Karel Žák, Roman Skála, Jan Rejšek, Šárka Křížová, Josh Wimpenny, Tomáš Magna Geochimica et Cosmochimica Acta LINK “The Australasian tektite (AAT) strewn field is the largest strewn field on the Earth with about…
Volatile element chemistry during accretion of the earth
Bruce Fegley Jr, Katharina Lodders, Nathan S.Jacobson Geochemistry Review LINK “We review some issues relevant to volatile element chemistry during accretion of the Earth with an emphasis on historical development of ideas during the past…
Photometry of Kuiper belt object (486958) Arrokoth from New Horizons LORRIOPEN ACCESS
Jason D. Hofgartner, Bonnie J. Buratti, Susan D. Benecchi, Ross A. Beyer, Andrew Chenge, James T. Keane, Tod R. Lauer, Catherine B. Olkin, Joel W. Parker, Kelsi N. Singer, John R. Spencer , S. Alan…
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…
