New clues to ancient water on Itokawa
Ziliang Jin, Maitrayee Bose Science Advances 01 May 2019: Vol. 5, no. 5, eaav8106 DOI: 10.1126/sciadv.aav8106 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “We performed the first measurements of hydrogen isotopic composition and water content in…
The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes
S. Sugita, R. Honda, T. Morota, S. Kameda, H. Sawada, E. Tatsumi, M. Yamada, C. Honda, Y. Yokota, T. Kouyama, N. Sakatani, K. Ogawa, H. Suzuki, T. Okada, N. Namiki, S. Tanaka, Y. Iijima, K….
The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy
K. Kitazato, R. E. Milliken, T. Iwata, M. Abe, M. Ohtake, S. Matsuura, T. Arai, Y. Nakauchi, T. Nakamura, M. Matsuoka, H. Senshu8 N. Hirata, T. Hiroi, C. Pilorget, R. Brunetto, F. Poulet, L. Riu,…
Inference of meteoroid characteristics using a genetic algorithmOPEN ACCESS
Ana Maria Tarano, Lorien Wheeler, Sigrid Close, Donovan Mathias Icarus LINK (OPEN ACCESS) PDF (OPEN ACCESS) • A new approach for automatically inferring meteoroid parameters is presented. • Objective function and tuning parameters for the…
IDP-like Asteroids Formed Later than 5 Myr After Ca–Al-rich Inclusions
Marc Neveu and Pierre Vernazza The Astrophysical Journal, Volume 875, Number 1 Published 2019 April 10 LINK “The parent bodies of ordinary chondrites, carbonaceous CM chondrites, and interplanetary dust particles (IDPs) represent most of the…
Evidence for widespread hydrated minerals on asteroid (101955) Bennu
V. E. Hamilton, A. A. Simon, P. R. Christensen, D. C. Reuter, B. E. Clark, M. A. Barucci, N. E. Bowles, W. V. Boynton, J. R. Brucato, E. A. Cloutis, H. C. Connolly Jr, K….
Fates of hydrous materials during planetesimal collisionsOPEN ACCESS
Shigeru Wakita, Hidenori Genda PDF (OPEN ACCESS) Update (Icarus, 20 March 2019) LINK “Hydrous minerals are found on the surfaces of asteroids, but their origin is not clear. If their origin is endogenic, the hydrous…
Origin of the metamorphosed clasts in the CV3 carbonaceous chondrite breccias of Graves Nunataks 06101, Vigarano, Roberts Massif 04143, and Yamato‐86009
Kaori Jogo, Motoo Ito, Shigeru Wakita, Sachio Kobayashi, Jong Ik Lee Meteoritics & Planetary Science First Published: 12 March 2019 LINK “We observed metamorphosed clasts in the CV3 chondrite breccias Graves Nunataks 06101, Vigarano, Roberts…
Testing accretion mechanisms of the H chondrite parent body utilizing nucleosynthetic anomalies
Søren Grube Pedersen, Martin Schiller, James N. Connelly, Martin Bizzarro Meteoritics & Planetary Science First Published: 7 March 2019 LINK “Planetary bodies a few hundred kilometers in radii are the precursors to larger planets but…
Accretion of the asteroids: Implications for their thermal evolution
S. J. Weidenschilling Meteoritics & Planetary Science First Published: 3 March 2019 LINK “Thermal models of asteroids generally assume that they accreted either instantaneously or over an extended interval with a prescribed growth rate. It…
A novel organic-rich meteoritic clast from the outer solar systemOPEN ACCESS
Yoko Kebukawa, Motoo Ito, Michael E. Zolensky, Richard C. Greenwood, Zia Rahman, Hiroki Suga, Aiko Nakato, Queenie H. S. Chan, Marc Fries, Yasuo Takeichi, Yoshio Takahashi, Kazuhiko Mase & Kensei Kobayashi Scientific Reports 9, 1–8…
The alteration history of the Jbilet Winselwan CM carbonaceous chondrite: An analog for C‐type asteroid sample returnOPEN ACCESS
A. J. King, S. S. Russell, P. F. Schofield, E. R. Humphreys‐Williams, S. Strekopytov, F. A. J. Abernethy, A. B. Verchovsky, M. M. Grady Meteorit Planet Sci. doi:10.1111/maps.13224 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Jbilet…
Measuring the Fidelity of Asteroid Regolith and Cobble Simulants
Philip T.Metzger, Daniel T.Britt, StephenCovey, CodySchultz, Kevin M.Cannon, Kevin D.Grossman, James G.Mantovani, Robert P.Mueller Icarus LINK “Highlights • Extraterrestrial simulants are often used inappropriately • NASA developed a “Figure of Merit” system to help end…
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…
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…
Spectral and chemical effects of simulated space weathering of the Murchison CM2 carbonaceous chondriteOPEN ACCESS
M.S. Thompson, M.J. Loeffler, R.V. Morris, L.P. Keller, R. Christoffersen Icarus In Press, Accepted Manuscript, Available online 18 September 2018 PDF (OPEN ACCESS) LINK (OPEN ACCESS) “Highlights • Space weathering of a carbonaceous chondrite simulated…
(16) Psyche: A mesosiderite-like asteroid?OPEN ACCESS
M. Viikinkoski, P. Vernazza, J. Hanus, H. Le Coroller, K. Tazhenova, B. Carry, M. Marsset, A. Drouard, F. Marchis, R. Fetick, T. Fusco, J. Durech, M. Birlan, J. Berthier, P. Bartczak, C. Dumas, J. Castillo-Rogez,…
Spectral properties and mineral compositions of acapulcoite–lodranite clan meteorites: Establishing S‐type asteroid–meteorite connections
Michael P. Lucas, Joshua P. Emery, Takahiro Hiroi, Harry Y. McSween Meteorit Planet Sci. . doi:10.1111/maps.13203 First published: 03 October 2018 LINK “Except for asteroid sample return missions, measurements of the spectral properties of both…
MGS‐TES spectra suggest a basaltic component in the regolith of PhobosOPEN ACCESS
Timothy D. Glotch, Christopher S. Edwards, Mehmet Yesiltas, Katherine A. Shirley, Dylan S. McDougall, Alexander M. Kling, Joshua L. Bandfield, Christopher D. K. Herd Journal of Geophysical Research: Planets, 123. https://doi.org/10.1029/2018JE005647 LINK (OPEN ACCESS) PDF…
Spectral and chemical effects of simulated space weathering of the Murchison CM2 carbonaceous chondrite
M.S. Thompson, M.J. Loeffler, R.V. Morris, L.P. Keller, R. Christoffersen Icarus In Press, Accepted Manuscript, Available online 18 September 2018 LINK “Highlights • Space weathering of a carbonaceous chondrite simulated via pulsed laser irradiation •…
Pre-airburst Orbital Evolution of Earth’s Impactor 2018 LA: An UpdateOPEN ACCESS
C. de la Fuente Marcos,R. de la Fuente Marcos PDF (OPEN ACCESS) Accepted for publication in Research Notes of the AAS Submitted: 22 July, 2018 “Apollo meteoroid 2018 LA has become only the third natural…
24 MOTOPI PAN meteorites (214.5375 g, Howardite, HED polymict breccia) of Botswana bolide of 2018 LA (2 June 2018,16:44:01.59-11.77 UT) found near Motopi Pan watering hole, Central Kalahari Game Reserve, Ghanzi, Botswana
Last update: 2 May 2021 Motopi Pan meteorite #1 (17.92 grams) in situ. Photo: Peter Jenniskens/Botswana International University of Science and Technology (BIUST) In the morning of 23 June, after five days of searching and…
The common origin of family and non-family asteroids
Stanley F. Dermott, Apostolos A. Christou, Dan Li, Thomas. J. J. Kehoe & J. Malcolm Robinson Nature Astronomy (2018) LINK “All asteroids are currently classified as either family, originating from the disruption of known bodies1,…
Hypervelocity cratering and disruption of the Northwest Africa 869 ordinary chondrite meteorite: Implications for crater production, catastrophic disruption, momentum transfer and dust production on asteroids
George J. Flynn, Daniel D. Durda, Emma B. Patmore, Sarah J. Jack, Mason J. Molesky, Brian A. May, Spenser N. Congram, Melissa M. Strait, Robert J. Macke Planetary and Space Science Available online 30 June…
Hydrothermal dynamics in a CM‐based model of Ceres
B. J. Travis, P. A. Bland, W. C. Feldman, M. V. Sykes Meteoritics & Planetary Science First published: 28 June 2018 doi:10.1111/maps.13138 LINK “A 2‐D numerical study of the evolution of Ceres from a “frozen…
On the Pre-impact Orbital Evolution of 2018 LA, Parent Body of the Bright Fireball Observed over Botswana on 2018 June 2OPEN ACCESS
C. de la Fuente Marcos, R. de la Fuente Marcos Accepted for publication in Research Notes of the AAS PDF (OPEN ACCESS) “On 2018 June 2, meteoroid 2018 LA became the third natural body ever…
Basaltic material in the main belt: a tale of two (or more) parent bodies?OPEN ACCESS
S. Ieva,E. Dotto, D. Lazzaro, D. Fulvio,D. Perna, E. Mazzotta Epifani, H. Medeiros, M. Fulchignoni accepted for publication to MNRAS PDF (OPEN ACCESS) “The majority of basaltic objects in the main belt are dynamically connected…
Basalt or not? Near-infrared spectra, surface mineralogical estimates, and meteorite analogs for 33 Vp-type asteroidsOPEN ACCESS
Paul S. Hardersen, Vishnu Reddy, Edward Cloutis, Matt Nowinski, Margaret Dievendorf, Russell M. Genet, Savan Becker, Rachel Roberts PDF (OPEN ACCESS) “Investigations of the main asteroid belt and efforts to constrain that population’s physical characteristics…
Hyperspectral FTIR imaging of irradiated carbonaceous meteorites
R. Brunetto, C. Lantz, Z. Dionnet, F. Borondics, A. Aléon-Toppani, D. Baklouti, M.A. Barucci, R.P. Binzel, Z. Djouadi, K. Kitazato, C. Pilorget Planetary and Space Science Available online 8 May 2018 LINK “Highlights • We…
The delivery of water by impacts from planetary accretion to presentOPEN ACCESS
R. Terik Daly, Peter H. Schultz Science Advances 25 Apr 2018: Vol. 4, no. 4, eaar2632 DOI: 10.1126/sciadv.aar2632 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Dynamical models and observational evidence indicate that water-rich asteroids and comets…
The ungrouped achondrite Northwest Africa (NWA) 7325: Spectral reflectance properties and implications for parent body identification
Edward A. Cloutis, Vishnu Reddy, David T. Blewett Icarus In Press, Available online 24 April 2018 LINK “Highlights • the ungrouped achondrite NWA 7325 has been spectrally characterized • NWA 7325 reflectance spectra show diagnostic…
Meteor showers from active asteroids and dormant comets in near-Earth space: a reviewOPEN ACCESS
Quan-Zhi Ye Planetary and Space Science in press PDF (OPEN ACCESS) “Small bodies in the solar system are conventionally classified into asteroids and comets. However, it is recently found that a small number of objects…
Identification of meteorite source regions in the solar systemOPEN ACCESS
Mikael Granvik, Peter Brown Icarus Available online 14 April 2018 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Over the past decade there has been a large increase in the number of automated camera networks that monitor…
Reflectance spectra of synthetic Fe-free ortho- and clinoenstatites in the UV/VIS/IR and implications for remote sensing detection of Fe-free pyroxenes on planetary surfaces
Kathrin Markus, Lyuba Moroz, Gabriele Arnold, Daniela Henckel, Harald Hiesinger, Arno Rohrbach, Klemme Stephan Planetary and Space Science Available online 11 April 2018 LINK “Highlights • Even extremely Fe-poor pyroxenes show deep ultraviolet absorption bands….
The late accretion and erosion of Vesta’s crust recorded by eucrites and diogenites as an astrochemical window into the formation of Jupiter and the early evolution of the Solar SystemOPEN ACCESS
D. Turrini, V. Svetsov, G. Consolmagno, S. Sirono, M. Jutzi Icarus In Press, Available online 4 April 2018 LINK PDF (OPEN ACCESS) “Highlights • The eucrites and diogenites are differentiated meteorites whose genetic link with…
Projectile preservation during oblique hypervelocity impacts
Daly, R. T. and Schultz, P. H. Meteorit Planet Sci. . doi:10.1111/maps.13081 LINK “Impact angle plays a significant role in determining the fate of the projectile. In this study, we use a suite of hypervelocity…
Uranium isotope ratios of Muonionalusta troilite and complications for the absolute age of the IVA iron meteorite core
Gregory A. Brennecka, Yuri Amelin, Thorsten Kleine Earth and Planetary Science Letters Volume 490, 15 May 2018, Pages 1–10 LINK “Highlights • Muonionalusta troilite exhibits a range of measured 238U/235U values. • Variable 238U/235U greatly…
Spectral reflectance “deconstruction” of the Murchison CM2 carbonaceous chondrite and implications for spectroscopic investigations of dark asteroids
Edward A. Cloutis, Valerie B. Pietrasz, Cain Kiddell, Matthew R.M. Izawa, Pierre Vernazza, Thomas H. Burbine, Francesca DeMeo, Kimberly T. Tait, James F. Bell III, Paul Mann, Daniel M. Applin, Vishnu Reddy Icarus, Volume 305,…
Extending the Mudball Model to Other Chondrite Groups
P. A. Bland, B. J. Travis 49th Lunar and Planetary Science Conference (2018), Abstract #2911 abstract
Genealogy of IVA Iron and Pallasite Meteorites: The Implications for Planestimal Differentiation Processes in the Early Solar System
M. E. Sanborn, Q.-Z. Yin, K. Ziegler 49th Lunar and Planetary Science Conference (2018), Abstract #1780 abstract
Early Differentiation in the Carbonaceous Chondrite Forming Region of the Solar Nebula: New Insight from the Achondrites Northwest Africa 7680/6962
M. E. Sanborn, Q.-Z. Yin, B. C. Hyde, K. T. Tait, D. E. Moser 49th Lunar and Planetary Science Conference (2018), Abstract #2296 abstract
Exogenous origin of hydration on asteroid (16) Psyche: The role of hydrated asteroid familiesOPEN ACCESS
C. Avdellidou, M. Delbo’, A. Fienga Accepted for publication in MNRAS PDF (OPEN ACCESS) “Asteroid (16) Psyche, that for long was the largest M-type with no detection of hydration features in its spectrum, was recently…
The Origins of Asteroidal Rock Disaggregation: Interplay of Thermal Fatigue and Microstructure
Kavan Hazeli,Charles El Mir, Stefanos Papanikolaou, Marco Delbo, K.T. Ramesh Icarus Available online 25 December 2017 LINK “The distributions of size and chemical composition in regolith on airless bodies provide clues to the evolution of…
Evolution of interstellar organic compounds under asteroidal hydrothermal conditions
V. Vinogradoff, S. Bernard, C. Le Guillou, L. Remusat Icarus Available online 12 December 2017 LINK “Carbonaceous chondrites (CC) contain a diversity of organic compounds. No definitive evidence for a genetic relationship between these complex…
Oxygen isotope reservoirs in the outer asteroid belt inferred from oxygen isotope systematics of chondrule olivines and isolated forsterite and olivine grains in Tagish Lake-type carbonaceous chondrites, WIS 91600 and MET 00432OPEN ACCESS
Masakuni Yamanobe, Tomoki Nakamura, Daisuke Nakashima Polar Science Volume 15, March 2018, Pages 29-38 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “To understand oxygen isotope ratios and redox conditions of the chondrule formation environments of the…
Collisional stripping of planetary crustsOPEN ACCESS
Philip J. Carter, Zoë M. Leinhardt, Tim Elliott, Sarah T. Stewart, Michael J. Walter Accepted for publication in EPSL PDF (OPEN ACCESS) “Geochemical studies of planetary accretion and evolution have invoked various degrees of collisional…
Percolative core formation in planetesimals enabled by hysteresis in metal connectivity
Soheil Ghanbarzadeh, Marc A. Hesse, and Maša Prodanović PNAS 2017 ; published ahead of print December 4, 2017 doi: 10.1073/pnas.1707580114 LINK “Significance It has long been thought that percolative core formation is prevented by high…
Ground-based Characterization of Hayabusa2 Mission Target Asteroid 162173 Ryugu: Constraining Mineralogical Composition in Preparation for Spacecraft OperationsOPEN ACCESS
Lucille Le Corre, Juan A. Sanchez, Vishnu Reddy, Driss Takir, Edward A. Cloutis, Audrey Thirouin, Kris J. Becker, Jian-Yang Li, Seiji Sugita, Eri Tatsumi PDF (OPEN ACCESS) “Asteroids that are targets of spacecraft missions are…
Laboratory spectroscopy of meteorite samples at UV-vis-NIR wavelengths: Analysis and discrimination by principal components analysisOPEN ACCESS
Antti Penttilä, Julia Martikainen, Maria Gritsevich, Karri Muinonen Journal of Quantitative Spectroscopy and Radiative Transfer, Volume 206, February 2018, Pages 189-197 LINK Update (16 February 2018): PDF (OPEN ACCESS) “Highlights • Meteorite samples are measured…
Origin and abundance of water in carbonaceous asteroids
Yves Marrocchi, David V. Bekaert, Laurette Piani Earth and Planetary Science Letters, Volume 482, 15 January 2018, Pages 23-32 LINK Highlights • Bulk, matrix and fayalite grains of CV chondrites define a continuous trend. •…
Space Weathering Trends on Carbonaceous Asteroids: A possible explanation for Bennu’s blue slope?
C. Lantz, R.P. Binzel, F.E. DeMeo Icarus In Press, Available online 8 November 2017 LINK “Highlights • Analysis of Near-Earth Asteroid spectra compared to irradiated carbonaceous chondrites. • Link between Principal Composant Analysis scores and…
CASTAway: An Asteroid Main Belt Tour and SurveyOPEN ACCESS
N. E. Bowles,C. Snodgrass,A Gibbings,J. P. Sanchez,J. A. Arnold,P. Eccleston,T. Andert,A. Probst,G. Naletto,A. C. Vandaele,J. de Leon,A. Nathues,I. R. Thomas,N. Thomas,L. Jorda,V. Da Deppo,H. Haack,S. F. Green,B. Carry,K. L. Donaldson Hanna,J. Leif Jorgensen,A. Kereszturi,F. E….
Silicate Earth’s missing niobium may have been sequestered into asteroidal cores
Carsten Münker, Raúl O. C. Fonseca & Toni Schulz Nature Geoscience doi:10.1038/ngeo3048 LINK “Geochemical models describing the behaviour of niobium during Earth’s growth rely on the general paradigm that niobium was delivered by Earth’s asteroidal…
Spatial distribution of carbon dust in the early solar nebula and the carbon content of planetesimalsOPEN ACCESS
Hans-Peter Gail, Mario Trieloff A&A Volume 606, October 2017 LINK (OPEN ACCESS) “Context. A high fraction of carbon bound in solid carbonaceous material is observed to exist in bodies formed in the cold outskirts of…
The empty primordial asteroid beltOPEN ACCESS
Sean N. Raymond, Andre Izidoro Science Advances 13 Sep 2017: Vol. 3, no. 9, e1701138 DOI: 10.1126/sciadv.1701138 LINK (OPEN ACCESS) PDF (OPEN ACCESS) PDF (OPEN ACCESS) (authors’ version) Blog post by S.N. Raymond “The asteroid…
The ungrouped chondrite El Médano 301 and its comparison with other reduced ordinary chondrites
Hamed Pourkhorsandi, Jérôme Gattacceca, Bertrand Devouard, Massimo D’Orazio, Pierre Rochette, Pierre Beck, Corinne Sonzogni, Millarca Valenzuela Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 12 September 2017 LINK “El Médano 301 (EM 301)…
Thermal evolution of trans-Neptunian objects, icy satellites, and minor icy planets in the early solar system
Bhatia, G. K. and Sahijpal, S. Meteoritics & Planetary Science. doi: 10.1111/maps.12952 First published: 8 September 2017 LINK “Numerical simulations are performed to understand the early thermal evolution and planetary scale differentiation of icy bodies…
Identification of a primordial asteroid family constrains the original planetesimal population
Marco Delbo, Kevin Walsh, Bryce Bolin, Chrysa Avdellidou, Alessandro Morbidelli Science 08 Sep 2017: Vol. 357, Issue 6355, pp. 1026-1029 DOI: 10.1126/science.aam6036 LINK “A quarter of known asteroids is associated with more than 100 distinct…
A Martian origin for the Mars Trojan asteroidsOPEN ACCESS
D. Polishook, S. A. Jacobson, A. Morbidelli & O. Aharonson Nature Astronomy 1, Article number: 0179 (2017) doi:10.1038/s41550-017-0179 LINK Updated (3 Oct 2017): PDF “Seven of the nine known Mars Trojan asteroids belong to an…
Giant convecting mud balls of the early solar systemOPEN ACCESS
Philip A. Bland, Bryan J. Travis Science Advances 14 Jul 2017: Vol. 3, no. 7, e1602514 DOI: 10.1126/sciadv.1602514 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Carbonaceous asteroids may have been the precursors to the terrestrial planets,…
Redox States of Initial Atmospheres Outgassed on Rocky Planets and Planetesimals
Laura Schaefer, Bruce Fegley Jr. The Astrophysical Journal, Volume 843, Number 2 Published 2017, July 12 LINK “The Earth and other rocky planets and planetesimals in the solar system formed through the mixing of materials…
Origin of water in the inner Solar System: planetesimals scattered inward during Jupiter and Saturn’s rapid gas accretionOPEN ACCESS
Sean N. Raymond, Andre Izidoro Icarus In Press, Accepted Manuscript, Available online 30 June 2017 (updated 6 July 2017) PDF (OPEN ACCESS) LINK “Highlights • The water-rich bodies interior to Jupiter’s orbit – both the…
Ureilites Provide a New Model for Planetesimal Formation
Rai N. Downes H. * 80th Annual Meeting of the Meteoritical Society 2017 [#6067] abstract (PDF) “Modelling shows that ureilite parent planetesimal formed from a mixture of Mg- and Fe-rich chondrules with a primary layered…
Accretion and Disruption Histories of the Ordinary Chondrite Parent Bodies
Edwards G. H. * Blackburn T. Alexander C. M. O’D. 80th Annual Meeting of the Meteoritical Society 2017 [#6367] abstract (PDF) “Discrepant Pb-Pb phosphate ages and Ni-metal metallographic cooling rates for ordinary chondrites may be…
Olivine Extracted from the Jbilet Winselwan CM2 Chondrite — A Reference for the Regolith of C-Group Asteroids?
Harries D. * Wild P. 80th Annual Meeting of the Meteoritical Society 2017 [#6198] abstract (PDF) “We have investigated olivine grains of an unbrecciated specimen of Jbilet Winselwan (CM2) for surface morphology and particle tracks….
Effects of Space Weathering on Reflectance Spectra of Ureilites: A Proof-of-Concept Study
Goodrich C. A. Gillis-Davis J. Cloutis E. Applin D. Hibbits C. Klima R. Christoffersen R. Fries M. Decker S. 80th Annual Meeting of the Meteoritical Society 2017 [#6224] abstract “Space weathering and spectral studies of…
Solar-Radiation Heating as a Possible Heat Source for Dehydration of Hydrous Carbonaceous Chondrites
Nakamura T. * Golabek G. Ohtsuka K. Matsuoka M. abstract (PDF) 80th Annual Meeting of the Meteoritical Society 2017 [#6233] “We have calculated time-dependent temperature profiles of near surface layers of primitive Near Sun Asteroid…
The Thermal History of CI and CM Chondrites and Their Relationship to Primitive Asteroid Surfaces
King A. J. * Maturilli A. Schofield P. F. Helbert J. Russell S. S. abstract (PDF) 80th Annual Meeting of the Meteoritical Society 2017 [#6220] “Heated CI and CM chondrites are likely to be excellcent…
Northwest Africa 11118: A Unique Accretionary Aggregate
Greshake A., Ziegler K., Mahlow K., Wirth R., Schmitt-Kopplin Ph. 80th Annual Meeting of the Meteoritical Society 2017 [#6208] abstract “The CM-like carbonaceous chondrite Northwest Africa 11118 is an unique very loosely consolidated highly porous…
3D shape of asteroid (6)~Hebe from VLT/SPHERE imaging: Implications for the origin of ordinary H chondritesOPEN ACCESS
M. Marsset, B. Carry, C. Dumas, J. Hanus, M. Viikinkoski, P. Vernazza, T. G. Müller, M. Delbo, E. Jehin, M. Gillon, J. Grice, B. Yang, T. Fusco, J. Berthier, S. Sonnett, F. Kugel, J. Caron,…
New candidates for active asteroids: main-belt (145) Adeona, (704) Interamnia, (779) Nina, (1474) Beira, and near-Earth (162173) RyuguOPEN ACCESS
Vladimir V. Busarev, Andrei B. Makalkin, Faith Vilas, Sergey I. Barabanov, Marina P. Scherbina submitted to Icarus 2017 PDF (OPEN ACCESS) “For the first time, spectral signs of subtle coma activity were observed for four…
The compositional diversity of non-Vesta basaltic asteroidsOPEN ACCESS
Thomas B. Leith, Nicholas A. Moskovitz, Rhiannon G. Mayne, Francesca E. DeMeo, Driss Takir, Brian J. Burt, Richard P. Binzel, Dimitra Pefkou Icarus In Press, Accepted Manuscript, Available online 11 May 2017 PDF (OPEN ACCESS)…
Meteorite transport—Revisited
Wisdom, J. Meteoritics & Planetary Science. doi: 10.1111/maps.12876 LINK “Meteorites are delivered from the asteroid belt by way of chaotic zones (Wisdom 1985a). The dominant sources are believed to be the chaotic zones associated with…
Testing the chondrule-rich accretion model for planetary embryos using calcium isotopesOPEN ACCESS
Elsa Amsellem, Frédéric Moynier, Emily A. Pringle, Audrey Bouvier, Heng Chen, James M. D. Day PhD Student Conference (PhDSC), l’Institut de Physique du Globe de Paris (IPGP), 13-17 March 2017 PDF (OPEN ACCESS) Update (28…
D/H ratios of the inner Solar SystemOPEN ACCESS
L. J. Hallis Review article Phil. Trans. R. Soc. A 2017 375 20150390 DOI: 10.1098/rsta.2015.0390. Published 17 April 2017 PDF (OPEN ACCESS) LINK (OPEN ACCESS) “The original hydrogen isotope (D/H) ratios of different planetary bodies…
Stony Meteoroid Space Erosion and Drag: Effect on Cosmic Ray Exposure Ages
David Parry Rubincam Icarus In Press, Accepted Manuscript Available online 12 April 2017 doi.org/10.1016/j.icarus.2017.04.003 LINK “Highlights • Particles impacting a meteoroid cause space erosion in addition to a drag force. • The meteoroid’s shrinking size…
Sedimentary laminations in the Isheyevo (CH/CBb) carbonaceous chondrite formed by gentle impact-plume sweep-up
Laurence A.J. Garvie, L. Paul Knauth, Melissa A. Morris Icarus In Press, Accepted Manuscript Available online 2 April 2017 LINK see also: Accretional Layers Preserved in a Meteorite Written by Linda M. V. Martel Hawai’i…
The impact trajectory of asteroid 2008 TC3
Davide Farnocchia, Peter Jenniskens, Darrel K. Robertson, Steven R. Chesley, Linda Dimare, Paul W. Chodas Icarus In Press, Accepted Manuscript, Available online 14 March 2017 LINK “Highlights • 2008 TC3 was the first ever predicted…
The Thermal Decomposition of Fine-grained Micrometeorites, Observations from Mid-IR SpectroscopyOPEN ACCESS
Martin David Suttle, Matthew J. Genge, Luigi Folco, Sara S. Russell Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 9 March 2017 LINK (OPEN ACCESS) “We analysed 44 fine-grained and scoriaceous micrometeorites. A…
Chondrule Accretion with a Growing ProtoplanetOPEN ACCESS
Yuji Matsumoto, Shoichi Oshino, Yasuhiro Hasegawa, Shigeru Wakita accepted for publication in ApJ Draft version published: 28 February 2017 PDF (OPEN ACCESS) Update (8 March 2017): LINK The Astrophysical Journal, Volume 837, Number 2 “Chondrules…
Mass Accumulation of Earth from Interplanetary Dust, Meteoroids, Asteroids and Comets
Gerhard Drolshagen, Detlef Koschny, Sandra Drolshagen, Jana Kretschmer, Björn Poppe Planetary and Space Science SI:Meteoroids 2016 Available online 14 February 2017 LINK “Using new data and recent models this paper derives a total combined flux…
Core Formation and Internal Structure of Planetesimals: The Role of Formation Time, Accretion Duration, and Terminal Size
T. Suwa, H. Nagahara 48th Lunar and Planetary Science Conference (2017), Abstract #2130 LINK
Vis-IR Reflectance Spectroscopy of Hydrous Carbonaceous Chondrites with Variable Heating and Dehydration Degrees
M. Matsuoka, T. Nakamura, N. Miyajima, N. Imae, A. Yamaguchi, H. Kojima 48th Lunar and Planetary Science Conference (2017), Abstract #2050 LINK
Analyzing the Chemical and Spectral Effects of Pulsed Laser Irradiation to Simulate Space Weathering of a Carbonaceous Chondrite
M. S. Thompson, L. P. Keller, R. Christoffersen, M. J. Loeffler, R. V. Morris, T. G. Graff, Z. Rahman 48th Lunar and Planetary Science Conference (2017), Abstract #2799 LINK
Brachinite-Like Clast in the Kaidun Meteorite: First Report of Primitive Achondrite Material
Higashi, K.; Hasegawa, H.; Mikouchi, T.; Zolensky, M. E. Conference Paper Lunar and Planetary Science Conference ; 48th; 20-24 Mar. 2017; The Woodlands, TX; United States JSC-CN-38570 Date Acquired: Jan 26, 2017 PDF 48th Lunar…
A tale of clusters: No resolvable periodicity in the terrestrial impact cratering recordOPEN ACCESS
Matthias M. M. Meier, Sanna Holm-Alwmark MNRAS (2017) stx211. DOI:https://doi.org/10.1093/mnras/stx211 Published: 25 January 2017 PDF (OPEN ACCESS) (updated: 1 Feb) LINK “Rampino & Caldeira (2015) carry out a circular spectral analysis (CSA) of the terrestrial…
Different origins or different evolutions? Decoding the spectral diversity among C-type asteroidsOPEN ACCESS
P. Vernazza, J. Castillo-Rogez, P. Beck, J. Emery, R. Brunetto, M. Delbo, M. Marsset, F. Marchis, O. Groussin, B. Zanda, P. Lamy, L. Jorda, O. Mousis, A. Delsanti, Z. Djouadi, Z. Dionnet, F. Borondics, B….
Accretional and alterational differences in a carbonaceous chondrite parent body: Evidence from the NWA 5491 CV3 meteorite
Kereszturi, A., Gyollai, I., Jozsa, S. and Kanuchova, Z. Meteoritics & Planetary Science. doi: 10.1111/maps.12802 Version of Record online: 17 JAN 2017 LINK “The NWA 5491 CV3 meteorite is a CVoxA subtype, and composed of…
Igneous lithologies on asteroid (4) Vesta mapped using gamma-ray and neutron data
Andrew W. Beck, David J. Lawrence, Patrick N. Peplowski, Christina E. Viviano-Beck, Thomas H. Prettyman, Timothy J. McCoy, Harry Y. McSween Jr, Naoyuki Yamashita Icarus In Press, Accepted Manuscript, Available online 10 January 2017 LINK…
Simulated Space Weathering of Fe- and Mg-rich Aqueously Altered Minerals Using Pulsed Laser IrradiationOPEN ACCESS
H.M. Kaluna, H.A. Ishii, J.P. Bradley, J.J. Gillis-Davis, P.G. Lucey Update (2 Jan 17): PDF (OPEN ACCESS) Icarus In Press, Accepted Manuscript, Available online 29 December 2016 LINK “Highlights • We simulate space weathering on…
Non-Vestoid candidate asteroids in the inner main beltOPEN ACCESS
Dagmara Oszkiewicz, Brian A. Skiff, Nick Moskovitz, Paweł Kankiewicz, Anna Marciniak, Javier Licandro, Mattia Galiazzo, Werner Zeilinger Astronomy & Astrophysics December 16, 2016 PDF (OPEN ACCESS) abstract “Most Howardite-Eucrite-Diogenite (HED) meteorites (analogs to V-type asteroids)…
Nanoindenting the Chelyabinsk meteorite to learn about impact deflection effects in asteroidsOPEN ACCESS
Carles E. Moyano-Cambero, Eva Pellicer, Josep M. Trigo-Rodríguez, Iwan P. Williams, Jürgen Blum, Patrick Michel, Michael Küppers, Marina Martínez-Jiménez, Ivan Lloro, Jordi Sort Astrophysical Journal (2017) PDF (OPEN ACCESS) abstract Update (24 January 2017): LINK…
Thermal evolution of planetesimals during accretion
Y. Ricard, D. Bercovici, F. Albarède Icarus In Press, Accepted Manuscript, Available online 21 December 2016 LINK “Highlights • joint mass-temperature distributions in a planetesimal swarm • molten planetary embryos are formed in only a…
Ion irradiation of carbonaceous chondrites: a new view of space weathering on primitive asteroids
C. Lantz, R. Brunetto, M.A. Barucci, S. Fornasier, D. Baklouti, J. Bourçois, M. Godard Icarus In Press, Accepted Manuscript, Available online 16 December 2016 LINK “Highlights • New ion irradiations on several carbonaceous chondrites to…
Diversity of the initial rocky planetary building materials at the edge of the solar system
Brownlee, D. E. and Joswiak, D. J. Meteoritics & Planetary Science. doi: 10.1111/maps.12804 First published: 9 December 2016 LINK “Asteroids and comets are surviving members of the vast planetesimal population that was distributed across the…
The accretion and impact history of the ordinary chondrite parent bodies
Terrence Blackburn, Conel M. O’D. Alexander, Richard Carlson, Linda T. Elkins-Tanton Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 9 December 2016 LINK “A working timeline for the history of ordinary chondrites includes…
Physical Characterization of ~2-meter Diameter Near-Earth Asteroid 2015 TC25: A possible boulder from E-type Asteroid (44) NysaOPEN ACCESS
Vishnu Reddy, Juan A. Sanchez, William F. Bottke, Audrey Thirouin, Edgard G. Rivera-Valentin, Michael S. Kelley, William Ryan, Edward A. Cloutis, Stephen C. Tegler, Eileen V. Ryan, Patrick A. Taylor, James E. Richardson, Nicholas Moskovitz,…
Mid-infrared spectra of comet nucleiOPEN ACCESS
Michael S.P. Kelley, Charles E. Woodward, Robert D. Gehrz, William T. Reach, David E. Harker Icarus (in Press) PDF (OPEN ACCESS) abstract “Highlights • We observed two comet nuclei with the Spitzer Space Telescope. •…
Mn-Cr ages and formation conditions of fayalite in CV3 carbonaceous chondrites: Constraints on the accretion ages of chondritic asteroids
Kaori Jogo, Tomoki Nakamura, Motoo Ito, Shigeru Wakita, Mikhail Yu. Zolotov, Scott R. Messenger Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 21 November 2016 LINK “Chondritic planetesimals are among the first planetary…
Asteroid Fragmentation Approaches for Modeling Atmospheric Energy Deposition
Paul J. Register, Donovan L. Mathias, Lorien F. Wheeler Icarus In Press, Accepted Manuscript, Available online 18 November 2016 LINK “Highlights • Fragmentation modeling approaches are compared using Chelyabinsk meteor data. • A new model…
Melting and differentiation of early-formed asteroids: The perspective from high precision oxygen isotope studiesOPEN ACCESS
Richard C. Greenwood, Thomas H. Burbine, Martin F. Miller, Ian. A. Franchi Chemie der Erde – Geochemistry Review article In Press, Corrected Proof, Available online 14 November 2016 LINK (OPEN ACCESS) “A number of distinct…
Modeling orbital gamma-ray spectroscopy experiments at carbonaceous asteroids
Lucy F. Lim, Richard D. Starr, Larry G. Evans, Ann M. Parsons, Michael E. Zolensky and William V. Boynton Meteoritics & Planetary Science. doi: 10.1111/maps.12786 Version of Record online: 6 NOV 2016 LINK “To evaluate…
Hungaria Asteroid Region Telescopic Spectral Survey (HARTSS) I: Stony Asteroids Abundant in the Hungaria Background Population
Michael P. Lucas, Joshua P. Emery, Noemi Pinilla-Alonso, Sean S. Lindsay, Vania Lorenzi Icarus In Press, Accepted Manuscript, Available online 5 November 2016 LINK “Highlights • HARTSS describes taxonomy, mineralogy, and meteorite analogs of Hungaria…
Numerical determination of visible/NIR optical constants from laboratory spectra of HED meteorites
Jorge A.G. Davalos, Jorge Márcio Carvano, Julio Blanco Icarus In Press, Accepted Manuscript, Available online 21 October 2016 LINK “Highlights • Optical constants from reflectance spectra of meteorite samples are retrieved. • The method uses…
Olivine settling in cosmic spherules during atmospheric deceleration: An indicator of the orbital eccentricity of interplanetary dustOPEN ACCESS
Matthew J. Genge, Martin Suttl Geophysical Research Letters 43 DOI: 10.1002/2016GL070874 First published: 19 October 2016 LINK (OPEN ACCESS) PDF (OPEN ACCESS) Key Points * Antarctic cosmic spherules with cumulate textures are reported * Numerical…
The Impact Ejecta Environment of Near Earth Asteroids
Jamey R. Szalay and Mihály Horány The Astrophysical Journal Letters, Volume 830, Number 2 LINK “Impact ejecta production is a ubiquitous process that occurs on all airless bodies throughout the solar system. Unlike the Moon,…
The global elemental composition of 433 Eros: First results from the NEAR Gamma-Ray Spectrometer orbital dataset
Patrick N. Peplowski Planetary and Space Science In Press, Accepted Manuscript http://dx.doi.org/10.1016/j.pss.2016.10.006 LINK “Highlights • First results from the NEAR GRS orbital investigation • Eros’ surface composition is consistent with ordinary chondrites, enstatite chondrites, and…
New constraints on the magnetic history of the CV parent body and the solar nebula from the Kaba meteorite
Jérôme Gattacceca, Benjamin P. Weiss, Matthieu Gounelle Earth and Planetary Science Letters In Press, Corrected Proof, Available online 6 October 2016 LINK “Highlights • Kaba meteorite is a high-fidelity recorder of the CV parent body…
Spectral characterization of V-type asteroids outside the Vesta family
Alessandra Migliorini, M.C. De Sanctis, D. Lazzaro, and E. Ammannito MNRAS doi:10.1093/mnras/stw2441 first published online September 26, 2016 LINK “We present new NIR reflectance spectra of 10 V-type candidate asteroids obtained at the 3.6 m…
Global variations in regolith properties on asteroid Vesta from Dawn’s low-altitude mapping orbit.
Denevi, B. W., Beck, A. W., Coman, E. I., Thomson, B. J., Ammannito, E., Blewett, D. T., Sunshine, J. M., De Sanctis, M. C., Li, J.-Y., Marchi, S., Mittlefehldt, D. W., Petro, N. E., Raymond,…
The Asteroid Belt as a Relic From a Chaotic Early Solar SystemOPEN ACCESS
Andre Izidoro, Sean N. Raymond, Arnaud Pierens, Alessandro Morbidelli, Othon C. Winter, David Nesvorny Accepted for publication in ApJ PDF (OPEN ACCESS) abstract “The orbital structure of the asteroid belt holds a record of the…
Survival of the impactor during hypervelocity collisions II: An analogue for high porosity targets.OPEN ACCESS
C. Avdellidou, M.C. Price, M. Delbo, and M.J. Cole MNRAS doi:10.1093/mnras/stw2381 First published online September 16, 2016 LINK PDF (OPEN ACCESS) “We investigated how a target’s porosity affects the outcome of a collision, with respect…
Space Weathering on Airless BodiesOPEN ACCESS
Journal of Geophysical Research: Planets Review Accepted manuscript online: 9 September 2016 PDF (OPEN ACCESS) abstract “Space weathering refers to alteration that occurs in the space environment with time. Lunar samples, and to some extent…
A partially differentiated interior for (1) Ceres deduced from its gravity field and shape
R. S. Park, A. S. Konopliv, B. G. Bills, N. Rambaux, J. C. Castillo-Rogez, C. A. Raymond, A. T. Vaughan, A. I. Ermakov, M. T. Zuber, R. R. Fu, M. J. Toplis, C. T. Russell,…
Iron and nickel isotope fractionation by diffusion, with applications to iron meteorites
Heather C. Watson, Frank Richter, Ankun Liu, Gary R. Huss Earth and Planetary Science Letters, Volume 451, 1 October 2016, Pages 159-167 LINK “Highlights • New experimental measurement of diffusive isotopic fractionation in Fe–Ni alloys….
Capture of Trans-Neptunian Planetesimals in the Main Asteroid Belt
David Vokrouhlický, William F. Bottke, and David Nesvorný The Astronomical Journal, Volume 152, Number 2 Published 2016 July 26 LINK “The orbital evolution of the giant planets after nebular gas was eliminated from the Solar…
Material composition assessment and discovering sublimation activity on asteroids 145 Adeona, 704 Interamnia, 779 Nina, and 1474 Beira
V. V. Busarev , S. I. Barabanov, V. B. Puzin Solar System Research July 2016, Volume 50, Issue 4, pp 281-293 First online: 23 July 2016 LINK “Spectrophotometric observations of 145 Adeona, 704 Interamnia, 779…
Secondary submicrometer impact cratering on the surface of asteroid 25143 Itokawa
Dennis Harries, Shogo Yakame, Yuzuru Karouji, Masayuki Uesugi, Falko Langenhorst Earth and Planetary Science Letters, Volume 450, 15 September 2016, Pages 337-345 Available online 12 July 2016 LINK “Highlights • Submicrometer impact craters on RA-QD02-0265…
Boron abundances and isotopic ratios of olivine grains on Itokawa returned by the Hayabusa spacecraft.
Fujiya, W., Hoppe, P. and Ott, U. Meteoritics & Planetary Science. doi: 10.1111/maps.12686 LINK “We report the B abundances and isotopic ratios of two olivine grains from the S-type asteroid Itokawa sampled by the Hayabusa…
Characterization of asteroid analogues by means of emission and reflectance spectroscopy in the 1- to 100-µm spectral rangeOPEN ACCESS
Alessandro Maturilli, Jörn Helbert, Sabrina Ferrari, Björn Davidsson and Mario D’Amore Earth, Planets and Space 2016 68:113 DOI: 10.1186/s40623-016-0489-y Published: 11 July 2016 PDF (OPEN ACCESS) HTML (OPEN ACCESS) “The last decades have seen a…
Evidence that 26Al did Not Melt Asteroids
Wasson J. T. * 79th Annual Meeting of the Meteoritical Society (2016) #6530 LINK
Tungsten Isotope Dichotomy Among Iron Meteorite Parent Bodies: Implications for the Timescales of Accretion and Core Formation
Kruijer T. S. * Kleine T. 79th Annual Meeting of the Meteoritical Society (2016) #6449 LINK
Do We have Meteorites from the Veritas Asteroid Break-Up Event 8 Ma ago?
Meier M. M. M. * Grimm S. Maden C. Busemann H. 79th Annual Meeting of the Meteoritical Society (2016) [#6291] LINK
Shock synthesis of quasicrystals with implications for their origin in asteroid collisions
Paul D. Asimow, Chaney Lin, Luca Bindi, Chi Ma, Oliver Tschauner, Lincoln S. Hollister, and Paul J. Steinhardt PNAS2016 ; published ahead of print June 13, 2016, doi:10.1073/pnas.1600321113 LINK “Significance The singular occurrence, to date,…
The Collisional Evolution of Undifferentiated Asteroids and the Formation of Chondritic Meteoroids
E. Beitz, J. Blum, M. G. Parisi, and J. Trigo-Rodriguez The Astrophysical Journal, Volume 824, Number 1 Published 2016 June 3 LINK “Most meteorites are fragments from recent collisions experienced in the asteroid belt. In…
An asteroidal origin for water in the MoonOPEN ACCESS
Jessica J. Barnes, David A. Kring, Romain Tartèse, Ian A. Franchi, Mahesh Anand & Sara S. Russell Nature Communications7, Article number:11684 doi:10.1038/ncomms11684 Published 31 May 2016 LINK (OPEN ACCESS) “The Apollo-derived tenet of an anhydrous…
Chemical Complementarity between the Gas Phase of the Interstellar Medium and the Rocky Material of Our Planetary SystemOPEN ACCESS
Haiyang Wang (RSAA, The Australian National University), Charles H. Lineweaver (RSAA, RSES, The Australian National University) Accepted for publication in the peer-reviewed proceedings of the 15th Australian Space Research Conference PDF (OPEN ACCESS) abstract “We…
Nanomorphology of Itokawa regolith particles:Application to space-weathering processes affecting the Itokawa asteroid
Toru Matsumoto, Akira Tsuchiama, Kentaro Uesugi, Tsukasa Nakano, Masayuki Uesugi, Junya Matsuno, Takashi Nagano, Akira Shimada, Akihisa Takeuchi, Yoshio Suzuki, Tomoki Nakamura, Michihiko Nakamura, Arnold Gucsik, Keita Nagaki, Tatsuhiro Sakaiya, Tadashi Kondo Geochimica et Cosmochimica…
Scale-Dependent Measurements of Meteorite Strength: Implications for Asteroid Fragmentation.
Desireé Cotto-Figueroa, Erik Asphaug, Laurence A.J. Garvie, Ashwin Rai, Joel Johnston, Luke Borkowski, Siddhant Datta, Aditi Chattopadhyay, Melissa A. Morris Icarus In Press, Accepted Manuscript, Available online 9 May 2016 LINK “Measuring the strengths of…
Inner solar system material discovered in the Oort cloud
By Karen J. Meech, Bin Yang, Jan Kleyna, Olivier R. Hainaut, Svetlana Berdyugina, Jacqueline V. Keane, Marco Micheli, Alessandro Morbidelli, Richard J. Wainscoat Science Advances 29 Apr 2016: Vol. 2, no. 4, e1600038 DOI: 10.1126/sciadv.1600038…
A note on cement in asteroids
G. Bilalbegovic accepted for publications in Icarus PDF (open access) abstract “Cement mineral tobermorite was formed in hydrothermal experiments on alternation of calcium-aluminum-rich inclusions (CAIs) in carbonaceous chondrite meteorites. Unidentified bands at 14 microns were…
The collisional evolution of undifferentiated asteroids and the formation of chondritic meteoroids
Eike Beitz, Jürgen Blum, M. Gabriela Parisi, Josep M. Trigo-Rodríguez Accepted by ApJ PDF (open access) “Most meteorites are fragments from recent collisions experienced in the asteroid belt. In such a hyper-velocity collision, the smaller…
Identification and Discrimination of Polycyclic Aromatic Hydrocarbons Using Raman Spectroscopy
Edward Cloutis, Paul Szymanski, Daniel Applin, Douglas Goltz Icarus In Press, Accepted Manuscript, Available online 4 April 2016 LINK “Polycyclic aromatic hydrocarbons (PAHs) are widely present throughout the solar system and beyond. They have been…
The Red Edge Problem in asteroid band parameter analysis.
Lindsay, S. S., Dunn, T. L., Emery, J. P. and Bowles, N. E. Meteoritics & Planetary Science. doi: 10.1111/maps.12611 LINK “Near-infrared reflectance spectra of S-type asteroids contain two absorptions at 1 and 2 μm (band…
Ferromagnetism and particle collisions: applications to protoplanetary disks and the meteoritical record
Alexander Hubbard accepted, ApJ update (July 27): LINK PDF (open access) abstract “The meteoritical record shows both iron partitioning and tungsten isotopic partitioning between matrix and chondrules. Tungsten is not abundant enough to have driven…
Spherule layers, crater scaling laws, and the population of ancient terrestrial impactors
Brandon C. Johnson, Gareth S. Collins, David A. Minton, Timothy J. Bowling, Bruce M. Simonson, Maria T. Zuber Icarus In Press, Accepted Manuscript, Available online 19 February 2016 LINK “Ancient layers of impact spherules provide…
