Waiting to make an impact: a probable excess of near-Earth asteroids in 2018 LA-like orbitsOPEN ACCESS
C. de la Fuente Marcos,R. de la Fuente Marcos Astronomy & Astrophysics November 30, 2018 PDF (OPEN ACCESS) “The discovery and tracking of 2018 LA marks only the third instance in history that the parent…
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…
Spinel assemblages in lunar meteorites Graves Nunataks 06157 and Dhofar 1528: Implications for impact melting and equilibration in the Moon’s upper mantle
Axel Wittmann, Randy L. Korotev, Bradley L. Jolliff, Paul K. Carpenter Meteoritics & Planetary Science First Published: 28 November 2018 LINK “Magnesium‐rich spinel assemblages occur in the two lunar vitric breccia meteorites—Dhofar (Dho) 1528 and…
The Impact Effect Calculator of Celestial Body Impacts to the Earth: The Constructor of Hazardous Orbits
S. A. Naroenkov, D. O. Glazachev, A. P. Kartashova, O. P. Popova I. S. Turuntaev Solar System Research November 2018, Volume 52, Issue 6, pp 534–546 LINK Original Russian Text © S.A. Naroenkov, D.O. Glazachev,…
Condensate refractory inclusions from the CO3.00 chondrite Dominion Range 08006: Petrography, mineral chemistry, and isotopic compositions
S.B. Simon, A.N. Krot, K. Nagashima, L. Kööp, A.M. Davis Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 27 November 2018 LINK “We have found two refractory inclusions in the CO3.00 carbonaceous chondrite…
Hydrocode simulations of asteroid airbursts and constraints for TunguskaOPEN ACCESS
Darrel K. Robertson, Donovan L. Mathias Icarus Available online 21 October 2018 LINK (OPEN ACCESS) “Highlights • Hydrocode simulations of asteroid airbursts of interest to planetary defense. • Both asteroids and comets plausible for Tunguska…
Petrogenesis of lunar impact melt rock meteorite Oued Awlitis 001
Axel Wittmann, Randy L. Korotev, Bradley L. Jolliff, Kunihiko Nishiizumi, A. J. Timothy Jull, Marc W. Caffee, Michael Zanetti, Anthony J. Irving Meteoritics & Planetary Science doi:10.1111/maps.13218 LINK “Oued Awlitis 001 is a highly feldspathic,…
Heterogeneity of melts in impact deposits and implications for their origin (Ries suevite, Germany)
Susann Siegert, Lutz Hecht Meteoritics & Planetary Science doi.org/10.1111/maps.13210 LINK “Impact melt‐bearing clastic deposits (suevites) are one of the most important records of the impact cratering process. A deeper understanding of their composition and formation…
Shock conditions recorded in NWA 8159 martian augite basalt with implications for the impact cratering history on Mars
Tom G. Sharp, Erin L. Walton, Jinping Hu, Carl Agee Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 24 November 2018 LINK “NWA 8159 is an augite-rich martian basalt, formed by cooling of…
Origin of metal from CB chondrites in an impact plume – A combined study of Fe and Ni isotope composition and trace element abundances
M. Weyrauch, J. Zipfel, S. Weyer Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 24 November 2018 LINK “The formation processes of the unusually metal-rich CB chondrites are a matter of debate. It…
Mineralogical Constraints on the Thermal History of Martian Regolith Breccia Northwest Africa 8114OPEN ACCESS
J.L. MacArthur, J.C. Bridges, L.J. Hicks, R. Burgess, K.H.Joy, M.J.Branney, G.M.Hansford, S.H.Bakerd, S.P.Schwenzer, S.J.Gurman, N.R.Stephen, E.D.Steer, J.D.Piercy, T.R. Ireland Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 23 November 2018 LINK (OPEN ACCESS)…
Northwest Africa 11024—A heated and dehydrated unique carbonaceous (CM) chondrite
Samuel Ebert, Addi Bischoff, Dennis Harries, Sarah Lentfort, Jean‐Alix Barrat, Andreas Pack, Jérôme Gattacceca, Robbin Visser, Peter Schmid‐Beurmann, Stephan Kimpel Meteorit Planet Sci. . doi:10.1111/maps.13212 LINK “Based on the high abundance of fine‐grained material and…
Siderophile Element Constraints on the Thermal History of the H Chondrite Parent body
G.J. Archer, R.J. Walker, J. Tino, T. Blackburn, T.S.Kruijer, J.L. Hellmann Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 20 November 2018 LINK “The abundances of highly siderophile elements (HSE: Re, Os, Ir,…
Sequential Chemical Separation of Cr and Ti from a Single Digest for High Precision Isotope Measurements of Planetary Materials
Yuki Hibiya, Tsuyoshi Iizuka, Katsuyuki Yamashita, Shigekazu Yoneda, Akane Yamakawa Geostand Geoanal Res. doi:10.1111/ggr.12249 First published: 19 November 2018 LINK “Combined determination of Cr and Ti isotopes of planetary materials offers a means with which…
Experimental hydrothermal alteration of basaltic glass with relevance to Mars
C. Sætre, H. Hellevang, L. Riu, H. Dypvik, C. Pilorget, F. Poulet, S. C. Werner Meteorit Planet Sci. . doi:10.1111/maps.13214 LINK “Phyllosilicates, carbonates, zeolites, and sulfates on Mars give clues about the planet’s past environmental…
Chemical, microstructural and chronological record of phosphates in the Ksar Ghilane 002 enriched shergottite
J. Roszjar, M.J. Whitehouse, K. Terada, K. Fukuda, T.John, A.Bischoff, Y.Morishita, H.Hiyagon Geochimica et Cosmochimica Acta LINK “The enriched basaltic (martian) shergottite Ksar Ghilane (KG) 002, discovered in 2010, is exceptionally rich in coexisting but…
Intense aqueous alteration on C-type asteroids: Perspectives from giant fine-grained micrometeorites [GCA-D-18-00805]
M.D.Suttle, L.Folco, M.J.Genge, S.S.Russell, J.Najorka, M. van Ginneken Geochimica et Cosmochimica Acta LINK “This study explores the petrology of five giant (>400μm) hydrated fine-grained micrometeorites from the Transantarctic Mountain (TAM) micrometeorite collection. For the first…
Quenched primary melt in Ramlat as Sahmah 517 – Snapshot of ureilite anatexis in the early solar system
Åke V. Rosén, Jonas Pape, Beda A. Hofmann, Edwin Gnos, Marcel Guillong Geochimica et Cosmochimica Acta LINK “Ureilites are the second largest group of achondrite meteorites but consensus is still lacking on the nature of…
Polymer amide as a carrier of 15N in Allende and Acfer 086 meteoritesOPEN ACCESS
Maclolm W McGEOCH, Tomáš ŠAMOŘIL, David ZAPOTOK, Julie E M McGEOCH PDF (OPEN ACCESS) “Polymers of amino acids have been found in Allende and Acfer 086, with extra-terrestrial origin evidenced by isotopically enhanced satellite peaks…
High‐mass resolution molecular imaging of organic compounds on the surface of Murchison meteorite
Minako Hashiguchi, Hiroshi Naraoka Meteorit Planet Sci. . doi:10.1111/maps.13211 LINK “High‐resolution mass spectrometry (HRMS) imaging by desorption electrospray ionization (DESI) coupled with Orbitrap MS using methanol (MeOH) spray was performed on a fragment of the…
Structural Investigation of Silicon Carbide X Grains: Constraints on Condensation in Supernova Ejecta
János Kodolány, Christian Vollmer, Peter Hoppe, and Maren Müller The Astrophysical Journal Volume 868, Number 1 LINK “We analyzed seven presolar SiC grains of supernova origin (average diameter: 1–2 μm) with transmission electron microscopy. Five…
Martian magmatism from plume metasomatized mantleOPEN ACCESS
James M. D. Day, Kimberly T. Tait, Arya Udry, Frédéric Moynier, Yang Liu & Clive R. Neal Nature Communications Volume 9, Article number: 4799 (2018) Published: 15 November 2018 LINK (OPEN ACCESS) PDF (OPEN ACCESS)…
A large impact crater beneath Hiawatha Glacier in northwest GreenlandOPEN ACCESS
Kurt H. Kjær, Nicolaj K. Larsen, Tobias Binder, Anders A. Bjørk, Olaf Eisen, Mark A. Fahnestock, Svend Funder, Adam A. Garde, Henning Haack, Veit Helm, Michael Houmark-Nielsen, Kristian K. Kjeldsen, Shfaqat A. Khan,Horst Machguth, Iain…
The physical properties of meteorites
D. Ostrowski, K. Bryson Planetary and Space Science In Press, Accepted Manuscript, Available online 14 November 2018 LINK “Meteorites provide vast amounts of information on the make up and history of the solar system. Physical…
Triggering Collapse of the Presolar Dense Cloud Core and Injecting Short-Lived Radioisotopes with a Shock Wave. VI. Protostar and Protoplanetary Disk FormationOPEN ACCESS
Alan P. Boss accepted by ApJ Submitted: 12 November, 2018 PDF (OPEN ACCESS) “Cosmochemical evaluations of the initial meteoritical abundance of the short-lived radioisotope (SLRI) 26Al have remained fairly constant since 1976, while estimates for…
Molecular distribution, 13C‐isotope, and enantiomeric compositions of carbonaceous chondrite monocarboxylic acids
José C. Aponte, Hannah K. Woodward, Neyda M. Abreu, Jamie E. Elsila, Jason P. Dworkin Meteoritics & Planetary Science First Published: 12 November 2018 LINK “The water‐soluble organic compounds in carbonaceous chondrite meteorites constitute a…
Fine-Grained Scoriaceous and Unmelted Micrometeorites: Sources and Relationships with Cosmic Spherules
D. D. Badyukov, F. Brandstaetter, D. Topa Geochemistry International November 2018, Volume 56, Issue 11, pp 1071–1083 First Online: 12 November 2018 LINK “185 fine-grained micrometeorites (FgMMs) from the Novaya Zemlya micrometeorite collection were studied…
Probing molecular and isotopic features of meteoritic insoluble organic matter by solid‐state nuclear magnetic resonance spectroscopy with sub‐milligram sample
M. K. Pandey, Y. Nishiyama, P. Tekely Meteorit Planet Sci. . doi:10.1111/maps.13209 LINK “We recorded one‐ and two‐dimensional solid‐state nuclear magnetic resonance spectra of meteoric insoluble organic matter with unprecedented sensitivity and resolution permitting us…
Previously unknown quasicrystal periodic approximant found in spaceOPEN ACCESS
Luca Bindi, Joyce Pham & Paul J. Steinhardt Scientific Reports volume 8, Article number: 16271 (2018) Published: 02 November 2018 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “We report the discovery of Al34Ni9Fe2, the first natural…