Reduced and unstratified crust in CV chondrite parent bodyOPEN ACCESS
Clément Ganino & Guy Libourel Nature Communications 8, Article number: 261 (2017) doi:10.1038/s41467-017-00293-1 Published online: 15 August 2017 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Early Solar System planetesimal thermal models predict the heating of the…
The stardust abundance in the local interstellar cloud at the birth of the Solar System
Peter Hoppe, Jan Leitner & János Kodolányi Nature Astronomy (2017) doi:10.1038/s41550-017-0215-0 Published online: 14 August 2017 LINK “Primitive Solar System materials, such as certain types of meteorites, interplanetary dust particles and cometary matter, contain small…
Contribution of early impact events to metal-silicate separation, thermal annealing, and volatile redistribution: Evidence in the Pułtusk H chondrite
Agata M. Krzesińska Meteoritics & Planetary Science. doi: 10.1111/maps.12933 First published: 14 August 2017 LINK “Three-dimensional X-ray tomographic reconstructions and petrologic studies reveal voluminous accumulations of metal in Pułtusk H chondrite. At the contact of…
Protracted storage of CR chondrules in a region of the disk transparent to galactic cosmic rays.
Roth, A. S. G., Metzler, K., Baumgartner, L. P., Hofmann, B. A. and Leya, I. Meteoritics & Planetary Science. doi: 10.1111/maps.12923 First published: 11 August 2017 LINK “Renazzo-type carbonaceous (CR) chondrites are accretionary breccias that…
Long-lived magnetism on chondrite parent bodiesOPEN ACCESS
Jay Shah, Helena C. Bates, Adrian R. Muxworthy, Dominik C. Hezel, Sara S. Russell, Matthew J. Genge Earth and Planetary Science Letters Volume 475, 1 October 2017, Pages 106–118 10. August 2017 LINK (OPEN ACCESS)…
A two-billion-year history for the lunar dynamoOPEN ACCESS
Sonia M. Tikoo, Benjamin P. Weiss, David L. Shuster, Clément Suavet, Huapei Wang and Timothy L. Grove Science Advances 09 Aug 2017: Vol. 3, no. 8, e1700207 DOI: 10.1126/sciadv.1700207 LINK (OPEN ACCESS) PDF (OPEN ACCESS)…
Early formation of planetary building blocks inferred from Pb isotopic ages of chondrulesOPEN ACCESS
By Jean Bollard, James N. Connelly, Martin J. Whitehouse, Emily A. Pringle, Lydie Bonal, Jes K. Jørgensen, Åke Nordlund, Frédéric Moynier, Martin Bizzarro Science Advances 09 Aug 2017: Vol. 3, no. 8, e1700407 DOI: 10.1126/sciadv.1700407…
Ejection of Chondrules from Fluffy MatricesOPEN ACCESS
Sota Arakawa Accepted for publication in ApJ Draft version PDF (OPEN ACCESS) “Chondritic meteorites primarily contain millimeter-sized spherical objects, the so-called chondrules; however, the co-accretion process of chondrules and matrix grains is not yet understood….
Cloppenburg meteorite (H4-5, S3, W3) registered in Meteoritical Bulletin database
LINK “Cloppenburg 52°50.262’N, 7°59.769’E Niedersachsen, Germany Find: 15 March 2017 Classification: Ordinary chondrite (H4-5) History: (D. Heinlein) The rock was found by the facility manager of a school while collecting rocks for the school garden,…
On a Novel Geometric Analysis of the Bacubirito Meteorite
E. Terán-Bobadilla, J. H. Abundis-Patiño, C. Añorve, C. R. Moraila, F. Ortega-Gutiérrez, M. A. Aragón-Calvo Earth, Moon, and Planets pp 1–11 First Online: 31 July 2017 LINK “Tridimensional model with large level of detail and…
Mn-Fe systematics in major planetary body reservoirs in the solar system and the positioning of the Angrite Parent Body: A crystal-chemical perspective
James J. Papike, Paul V. Burger, Aaron S. Bell, Charles K. Shearer American Mineralogist DOI: 10.2138/am-2017-6112 First Published on August 01, 2017 LINK “A revised diagram plotting the Fe/Mn ratio of pyroxene and olivine verses…
Similarities in Element Content between Comet 67P/Churyumov-Gerasimenko Coma Dust and Selected Meteorite Samples
Oliver J. Stenzel, Martin Hilchenbach, Sihane Merouane, John Paquette, Kurt Varmuza, Cécile Engrand, Franz Brandstätter, Christian Koeberl, Ludovic Ferrière, Peter Filzmoser Mon Not R Astron Soc doi.org/10.1093/mnras/stx1908 LINK “We have analyzed the element composition and…
Meteorite falls in Africa
Fouad Khiri, Abderrahmane Ibhi, Thierry Saint-Gerant, Mohand Medjkane, Lahcen Ouknine Journal of African Earth Sciences Available online 22 July 2017 LINK “Highlights • The more favorable factors to observe and to recover meteorite falls in…
CM and CO chondrites: A common parent body or asteroidal neighbors? Insights from chondrule silicatesOPEN ACCESS until 29 Sept 2017
Devin L. Schrader, Jemma Davidson Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 29 July 2017 LINK (Open Access until 29 Sept 2017) “By investigating the petrology and chemical composition of type II…
Titanium isotopes and rare earth patterns in CAIs: evidence for thermal processing and gas-dust decoupling in the protoplanetary disk
Andrew M. Davis, Junjun Zhang, Nicolas D. Greber, Jingya Hu, François L.H. Tissot, Nicolas Dauphas Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 27 July 2017 LINK “Titanium isotopic compositions (mass-dependent fractionation and…
Magnesium isotope systematics in Martian meteorites
Tomáš Magna, Yan Hu, Fang-Zhen Teng, Klaus Mezger Earth and Planetary Science Letters In Press, Corrected Proof, Available online 26 July 2017 LINK “Highlights • The Martian mantle has an estimated δ26Mg of −0.27 ±…
Compositions and microstructures of CB sulfides: Implications for the thermal history of the CB chondrite parent body
Srinivasan, P., Jones, R. H. and Brearley, A. J. Meteoritics & Planetary Science. doi: 10.1111/maps.12921 LINK “We studied textures and compositions of sulfide inclusions in unzoned Fe,Ni metal particles within CBa Gujba, CBa Weatherford, CBb…
The cosmic-ray exposure history of the Twannberg iron meteorite (IIG)
Smith, T., Hofmann, B. A., Leya, I., Merchel, S., Pavetich, S., Rugel, G. and Scharf, A. Meteoritics & Planetary Science. doi: 10.1111/maps.12928 LINK “The Twannberg iron meteorite is one out of only six members of…
The spatial distribution of carbon dust in the early solar nebula and the carbon content of planetesimalsOPEN ACCESS
Hans-Peter Gail, Mario Trieloff accepted by Astronomy & Astrophysics PDF (OPEN ACCESS) “A high fraction of carbon bound in solid carbonaceous material is observed to exist in bodies formed in the cold outskirts of the…
Shock fabrics in fine-grained micrometeorites.OPEN ACCESS
Suttle, M. D., Genge, M. J. and Russell, S. S. Meteorit Planet Sci. doi:10.1111/maps.12927 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The orientations of dehydration cracks and fracture networks in fine-grained, unmelted micrometeorites were analyzed using…
Evidence for an impact-induced magnetic fabric in Allende, and exogenous alternatives to the core dynamo theory for Allende magnetization.OPEN ACCESS
Muxworthy, A. R., Bland, P. A., Davison, T. M., Moore, J., Collins, G. S. and Ciesla, F. J. Meteorit Planet Sci. doi:10.1111/maps.12918 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “We conducted a paleomagnetic study of the…
Evaluation of meteorites as habitats for terrestrial microorganisms: Results from the Nullarbor Plain, Australia, a Mars analogue site
Alastair W. Tait, Siobhan A. Wilson, Andrew G. Tomkins, Emma J. Gagen, Stewart J. Fallon, Gordon Southam Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 21 July 2017 LINK “Unambiguous identification of biosignatures…
The early differentiation of Mars inferred from Hf–W chronometry
Thomas S. Kruijer, Thorsten Kleine, Lars E. Borg, Gregory A. Brennecka, Anthony J. Irving, Addi Bischoff, Carl B. Agee Earth and Planetary Science Letters In Press, Corrected Proof, Available online 20 July 2017 LINK “Highlights…
Microbial Populations of Stony Meteorites: Substrate Controls on First ColonizersOPEN ACCESS
Alastair W. Tait, Emma J. Gagen, Siobhan A. Wilson, Andrew G. Tomkins and Gordon Southam Frontiers in Microbiology (2017). DOI: 10.3389/fmicb.2017.01227 30 June 2017 LINK (OPEN ACCESS) “Finding fresh, sterilized rocks provides ecologists with a…
Pb isotopes in the impact melt breccia 66095: Association with the Imbrium basin and the isotopic composition of lithologies at the Apollo 16 landing site
Joshua F. Snape, Alexander A. Nemchin, Jeremy J. Bellucci, Martin J. Whitehouse Chemical Geology In Press, Accepted Manuscript, Available online 19 July 2017 LINK “Recent in situ Secondary Ion Mass Spectrometry (SIMS) Pb isotope analyses…
Assessing the shock state of the lunar highlands: Implications for the petrogenesis and chronology of crustal anorthositesOPEN ACCESS
J. F. Pernet-Fisher, K. H. Joy, D. J. P. Martin & K. L. Donaldson Hanna Scientific Reports 7, Article number: 5888 (2017) doi:10.1038/s41598-017-06134- LINK “Our understanding of the formation and evolution of the primary lunar…
A Martian origin for the Mars Trojan asteroids
D. Polishook, S. A. Jacobson, A. Morbidelli & O. Aharonson Nature Astronomy 1, Article number: 0179 (2017) doi:10.1038/s41550-017-0179 LINK “Seven of the nine known Mars Trojan asteroids belong to an orbital cluster1,2 named after its…
Neodymium isotope heterogeneity of ordinary and carbonaceous chondrites and the origin of non-chondritic 142Nd compositions in the Earth
Ryota Fukai, Tetsuya Yokoyama Earth and Planetary Science Letters Volume 474, 15 September 2017, Pages 206–214 LINK “Highlights • Ordinary and carbonaceous chondrites possess non-radiogenic Nd isotope anomalies. • Nd isotope variability was caused by…
Acapulcoite-lodranite meteorites: Ultramafic asteroidal partial melt residues
Klaus Keil, Timothy J. McCoy Chemie der Erde – Geochemistry Review article Available online 14 July 2017 LINK “Acapulcoites (most ancient Hf-W ages are 4,563.1 ± 0.8 Ma), lodranites (most ancient Hf-W ages are 4,562.6…
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,…
Origin of Na in glass inclusions hosted in olivine from Allende CV3 and Jbilet Winselwan CM2: Implications for chondrule formation
L. Florentin, F. Faure, E. Deloule, L. Tissandier, A. Gurenko, D. Lequin Earth and Planetary Science Letters Volume 474, 15 September 2017, Pages 160–171 LINK “Highlights • Glass inclusions hosted in olivines from Allende experimentally…
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…
Petrographic and C & O isotopic characteristics of the earliest stages of aqueous alteration of CM chondrites
Lionel G. Vacher, Yves Marrocchi, Johan Villeneuve, Maximilien J. Verdier-Paoletti, Matthieu Gounelle Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 12 July 2017 LINK “CM chondrites form the largest group of hydrated meteorites…
Formation of an Ultracarbonaceous Antarctic Micrometeorite through Minimal Aqueous Alteration in a Small Porous Icy Body
Hikaru Yabuta, Takaaki Noguchi, Shoichi Itoh, Tomoki Nakamura, Akira Miyake, Shinichi Tsujimoto, Noriaki Ohashi, Naoya Sakamoto, Minako Hashiguchi, Ken-ichi Abe, Aya Okubo, A.L. David Kilcoyne, Shogo Tachibana, Ryuji Okazaki, Kentaro Terada, Mitsuru Ebihara, Hiroko Nagahara…
What we know about elemental bulk chondrule and matrix compositions: Presenting the ChondriteDB Database
Dominik C. Hezel, Markus Harak, Guy Libourel Chemie der Erde – Geochemistry In Press, Corrected Proof, Available online 11 July 2017 Review Article LINK “Chondrules and matrix are the major components of chondritic meteorites and…
Partial Melting of Oxidized Planetesimals: An Experimental Study to Test the Formation of Oligoclase-rich Achondrites Graves Nunataks 06128 and 06129
Nicole G. Lunning, Kathryn G. Gardner-Vandy, Emma S. Sosa, Timothy J. Mccoy, Emma S. Bullock, Catherine M. Corrigan Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 11 July 2017 LINK “The meteorites Graves…
Petrography, classification, oxygen isotopes, noble gases, and cosmogenic records of Kamargaon (L6) meteorite: The latest fall in India.OPEN ACCESS
Ray, D., Mahajan, R. R., Shukla, A. D., Goswami, T. K. and Chakraborty, S. Meteorit Planet Sci. doi:10.1111/maps.12875 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “A single piece of meteorite fell on Kamargaon village in the…
Distinct 238U/235U ratios and REE patterns in plutonic and volcanic angrites: Geochronologic implications and evidence for U isotope fractionation during magmatic processes
François L.H. Tissot, Nicolas Dauphas, Timothy L. Grove Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 8 July 2017 LINK “Angrites are differentiated meteorites that formed between 4 and 11 Myr after Solar…
Mapping the composition of chondritic meteorite Northwest Africa 3118 with micro-Raman spectroscopy
Analía G. Dall’Asén, Sophia I. Dimas, Sarah Tyler, Jessica F. Johnston, Timothy R. Anderton, Inese I. Ivans, Jordan M. Gerton, Benjamin C. Bromley & Scott J. Kenyon Spectroscopy Letters Published online: 05 Jul 2017 LINK…
Mineralogy and petrogenesis of lunar magnesian granulitic meteorite Northwest Africa 5744OPEN ACCESS
Kent, J. J., Brandon, A. D., Joy, K. H., Peslier, A. H., Lapen, T. J., Irving, A. J. and Coleff, D. M. Meteorit Planet Sci. doi:10.1111/maps.12898 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Lunar meteorite Northwest…
J-type carbon stars: A dominant source of 14N-rich presolar SiC grains of type ABOPEN ACCESS
Nan Liu, Thomas Stephan, Patrick Boehnke, Larry R. Nittler, Conel M. O’D. Alexander, Jianhua Wang, Andrew M. Davis, Reto Trappitsch, Michael J. Pellin The Astrophysical Journal Letters PDF (OPEN ACCESS) updated: 22 July 2017 LINK…
The production rate of cosmogenic deuterium at the Moon’s surface
Evelyn Füri, Etienne Deloule, Reto Trappitsch Earth and Planetary Science Letters Volume 474, 15 September 2017, Pages 76–82 LINK “Highlights • The deuterium content of olivines from eight mare basalts is determined by SIMS. •…
Petrogenesis of Miller Range 07273, a new type of anomalous melt breccia: Implications for impact effects on the H chondrite asteroid.
Ruzicka, A. M., Hutson, M., Friedrich, J. M., Rivers, M. L., Weisberg, M. K., Ebel, D. S., Ziegler, K., Rumble, D. and Dolan, A. A. Meteoritics & Planetary Science. doi: 10.1111/maps.12901 LINK “Miller Range 07273…
Magnetite in Comet Wild 2: Evidence for parent body aqueous alterationOPEN ACCESS
Hicks, L. J., Macarthur, J. L., Bridges, J. C., Price, M. C., Wickham-Eade, J. E., Burchell, M. J., Hansford, G. M., Butterworth, A. L., Gurman, S. J., Baker, S. H. Meteorit Planet Sci. doi:10.1111/maps.12909 LINK…
Addibischoffite, Ca2Al6Al6O20, a new calcium aluminate mineral from the Acfer 214 CH carbonaceous chondrite: A new refractory phase from the solar nebula
Chi Ma, Alexander N.Krot, Kazuhide Nagashima American Mineralogist, v. 102, i. 7, p. 1556-1560, First Published on July 03, 2017, doi:10.2138/am-2017-6032 LINK “Addibischoffite (IMA 2015-006), Ca2Al6Al6O20, is a new calcium aluminate mineral that occurs with…
The preservation of the Agoudal impact crater, Morocco, under a landslide: Indication of a genetic link between shatter cones and meteorite fragments
Hassane Nachit, El Hassan Abia, Costanza Bonadiman, Mario Di Martino, Carmela Vaccaro Geomorphology, Volume 295, 15 October 2017, Pages 76-83 Review Article LINK “Geological studies and tomographic profiles of a locality nearby the Agoudal village…
Determination of the equilibrium fO2 in bulk samples of H, L, and LL ordinary chondrites by solid-state electrochemistry
Osadchii, V. O., Fedkin, M. V. and Osadchii, E. G. Meteoritics & Planetary Science. doi: 10.1111/maps.12919 LINK “High-temperature solid-state electrochemistry techniques (EMF method) were used to measure the oxygen fugacity (fO2) of the ordinary chondrites…
Valence of Ti, V, and Cr in Apollo 14 aluminous basalts 14053 and 14072
Simon, S. B. and Sutton, S. R. Meteoritics & Planetary Science. doi: 10.1111/maps.12908 LINK “The valences of Ti, V, and Cr in olivine and pyroxene, important indicators of the fO2 of the source region of…
Complex origins of silicate veinlets in HED meteorites: A case study of Northwest Africa 1109
Pang, R.-L., Zhang, A.-C. and Wang, R.-C. Meteoritics & Planetary Science. doi: 10.1111/maps.12920 LINK “We report on the petrography and mineralogy of three types of silicate veinlets in the brecciated eucrite Northwest Africa (NWA) 1109….
Titanium Stable Isotopic Variations in Chondrites, Achondrites and Lunar Rocks
Nicolas D. Greber, Nicolas Dauphas, Igor S. Puchtel, Beda A. Hofmann, Nicholas T. Arndt Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 30 June 2017 LINK “Titanium isotopes are potential tracers of processes…
Cosmogenic He and Ne in chondrules from clastic matrix and a lithic clast of Murchison: No pre-irradiation by the early sun
My E.I. Riebe, Liliane Huber, Knut Metzler, Henner Busemann, Stefanie M. Luginbuehl, Matthias M.M. Meier, Colin Maden, Rainer Wieler Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 29 June 2017 LINK “Whether or…
Identification of PAH Isomeric Structure in Cosmic Dust Analogs: The AROMA Setup
Hassan Sabbah, Anthony Bonnamy, Dimitris Papanastasiou, Jose Cernicharo, Jose-Angel Martín-Gago, and Christine Joblin The Astrophysical Journal, Volume 843, Number 1 LINK “We developed a new analytical experimental setup called AROMA (Astrochemistry Research of Organics with…
Coordinated mineralogical and isotopic analyses of a cosmic symplectite discovered in a comet 81P/Wild 2 sample.
Nguyen, A. N., Berger, E. L., Nakamura-Messenger, K., Messenger, S. and Keller, L. P. Meteoritics & Planetary Science. doi: 10.1111/maps.12905 LINK “We have discovered in a Stardust mission terminal particle a unique mineralogical assemblage of…
Geochemical and oxygen isotope perspective of a new R chondrite Dhofar 1671: Affinity with ordinary chondrites.
Ali, A., Nasir, S. J., Jabeen, I., Al Rawas, A., Banerjee, N. R. and Osinski, G. R. Meteoritics & Planetary Science. doi: 10.1111/maps.12903 LINK “Dhofar 1671 is a relatively new meteorite that previous studies suggest…
3.1 Ga crystallization age for magnesian and ferroan gabbro lithologies in the Northwest Africa 773 clan of lunar meteorites
B.J. Shaulis, M. Righter, T.J. Lapen, B.L. Jolliff, A.J. Irving Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 28 June 2017 LINK “The Northwest Africa (NWA) 773 clan of meteorites is a group…
An experimental study of chondrule formation from chondritic precursors via evaporation and condensation in Knudsen cell: Shock heating model of dust aggregates
Naoya Imae, Hiroshi Isobe Earth and Planetary Science Letters In Press, Corrected Proof, Available online 27 June 2017 LINK “Highlights • Type I chondrules were reproduced via the Fe evaporation and Si condensation in the…
Apparent meteorite fall in the Al-Abbasiya region (منطقة العباسية), south of Kosti (كوستي), White Nile (النيل الأبيض), Sudan on 21 June 2017
The bolide’s detonation booms and flares were seen and heard by many witnesses in Kosti, Rabak, Jabalin and Kenana in the early morning (about 00:05 a.m. EAT (UTC+3) ?) of 21 June 2017. The first…
Meteorite fall in Broek in Waterland, Waterland, Netherlands, at 5.09.39 p.m. (4.09.39 p.m. UTC) on 11 January 2017
Last update: 3 August 2017 According to Naturalis Biodiversity Center’s press release from 26 June 2017 the meteorite (530 g, L6,S3,W0 ~ 9.1 x 8.7 x 5.6 (max.) cm) hit a barn in the residential…
Nucleosynthetic molybdenum isotope anomalies in iron meteorites – new evidence for thermal processing of solar nebula materialOPEN ACCESS
Graeme M. Poole, Mark Rehkämper, Barry J. Coles, Tatiana Goldberg, Caroline L. Smith Earth and Planetary Science Letters In Press, Corrected Proof, Available online 20 June 2017 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Highlights •…
Improvement of the extraction method of faint signals in γ-activity measurements of meteorites⋆
D. Gardiol, D. Barghini, P. Colombetti, C. Taricco, S. Mancuso, S. Rubinetti, M. Di Martino The European Physical Journal Plus First Online:20 June 2017 DOI: 10.1140/epjp/i2017-11556-yJune 2017, 132:269 LINK “At the underground laboratory of Monte…
The role of phosphates for the Lu–Hf chronology of meteoritesOPEN ACCESS
Vinciane Debaille, James Van Orman, Qing-Zhu Yin, Yuri Amelin Earth and Planetary Science Letters, Volume 473, 1 September 2017, Pages 52-61 LINK “Highlights: • Preferential diffusion of Lu over Hf from phosphate can disturb Lu–Hf…
Rubidium isotopic composition of the Earth, meteorites, and the Moon: Evidence for the origin of volatile loss during planetary accretionOPEN ACCESS
Emily A. Pringle, Frédéric Moynier Earth and Planetary Science Letters, Volume 473, 1 September 2017, Pages 62-70 LINK “Highlights • We measured high-precision stable Rb isotope ratios in terrestrial samples, chondrites, HED meteorites, and lunar…
Age of Jupiter inferred from the distinct genetics and formation times of meteorites
Thomas S. Kruijer, Christoph Burkhardt, Gerrit Budde, and Thorsten Kleine PNAS2017 ; published ahead of print June 12, 2017, doi:10.1073/pnas.1704461114 LINK “The age of Jupiter, the largest planet in our Solar System, is still unknown….
In situ 60Fe-60Ni Systematics of Chondrules from Unequilibrated Ordinary Chondrites
Myriam Telus, Gary R. Huss, Kazuhide Nagashima, Ryan C. Ogliore, Shogo Tachibana Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 12 June 2017 LINK “The initial 60Fe/56Fe ratio of chondrules from unequilibrated ordinary…
Paris vs. Murchison: Impact of hydrothermal alteration on organic matter in CM chondrites
V. Vinogradoff, C. Le Guillou, S. Bernard, L. Binet, P. Cartigny, A.J. Brearley, L. Remusat Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 12 June 2017 LINK “Unravelling the origin of organic compounds…
Refractory materials in comet samples.OPEN ACCESS
Joswiak, D. J., Brownlee, D. E., Nguyen, A. N., Messenger, S. Meteorit Planet Sci. doi:10.1111/maps.12877 LINK “Transmission electron microscope examination of more than 250 fragments, >1 μm from comet Wild 2 and a giant cluster…
Carbonaceous meteorite fall (>2.23 kg) on 6 June 2017 at ~5:15 a.m. IST (UTC+05:30) in Mukundpurā (मुकुन्दपुरा), Jaipur (जयपुर), Rajastan, India (updated: 25 June)
Last update: 25 June 2017 On 6 June 2017 at about 5:10-20 a.m. IST (UTC+05:30) a carbonaceous meteorite, apparently weighing ~ 2.73 kg in total, fell on the farmland of Banśī Bāgaṛā (बंशी बागड़ा) in…
Geochemistry of Martian basalts with constraints on magma genesis
Justin Filiberto Chemical Geology Volume 466, 5 September 2017, Pages 1-14 LINK “Highlights • Review of geochemistry of Martian basalts and formation conditions • Martian basalts are more chemically more diverse than represented by meteorites….
Iron Isotope Compositions of Achondritic Meteorites
Ray S. * Rai V. K. Hines R. Romaniello S. Wadhwa M. 80th Annual Meeting of the Meteoritical Society 2017 [#6400] abstract (PDF) “Here, we report the iron isotope compositions of three ungrouped achondrites, North…
Northwest Africa 10463: A New Angrite Meteorite
Santos A. R. * Agee C. B. Bell A. S. Shearer C. K. 80th Annual Meeting of the Meteoritical Society 2017 [#6313] abstract (PDF) “NWA 10463 is a new angrite meteorite with several interesting textural…
Petrology, Mineralogy and In Situ U-Pb Dating of Northwest Africa 11042
Wu Y. * Hsu W. 80th Annual Meeting of the Meteoritical Society 2017 [#6190] abstract (PDF) “NWA 11042 was classified as a unique achondrite. Its mineralogy and petrology resemble those of martian meteorites, but the…
Primitive Achondrite Northwest Africa 11042: Melting of the L Chondrite Parent Body
Vaci Z. * Agee C. B. Ziegler K. Polyak V. J. Humayun M. 80th Annual Meeting of the Meteoritical Society 2017 [#6161] abstract (PDF) “NWA 11042 is an igneous primitive achondrite whose oxygen isotopes plot…
Insights into CAI Formation from Nickel Isotopic Signatures
Render J. * Brennecka G. A. Wang S. J. Wasylenki L. E. Kleine T. 80th Annual Meeting of the Meteoritical Society 2017 [#6327] abstract (PDF) “Refractory inclusions show isotopic variability in nickel, suggestive of a…
Andesitic-Dacitic Achondrite Northwest Africa 11119: Evidence for Extraterrestrial Silica-Rich Magmatism
Srinivasan P. * Agee C. B. McCubbin F. M. Ziegler K. 80th Annual Meeting of the Meteoritical Society 2017 [#6129] abstract (PDF) “Petrologic and isotopic results for ungrouped achondrite Northwest Africa 11119 shows a possible…
Calcium and Titanium Isotope Systematics in Refractory Inclusions from CM, CO, and CR Chondrites
Kööp L. * Davis A. M. Krot A. N. Nagashima K. Simon S. B. 80th Annual Meeting of the Meteoritical Society 2017 [#6280] abstract (PDF) “We studied a large number of CAIs from three different…
Reactions Along the Boundaries Between Plagioclase and Diopside of Ungrouped Achondrite Northwest Africa 7325
Yang J. * Lin Y. T. 80th Annual Meeting of the Meteoritical Society 2017 [#6240] abstract (PDF) “In order to clarify the late-stage processes after the crystallization of NWA 7325, we analysed chemical compositions and…
Correlations Among MicroStructure, Morphology, Chemistry, and Isotopic Systematics of Hibonite in CM Chondrites
Han J. * Liu M.-C. Kööp L. Keller L. P. Davis A. M. 80th Annual Meeting of the Meteoritical Society 2017 [#6380] abstract (PDF) ” We present TEM observations of CM hibonites to examine possible…
The Distinct Genetics of Carbonaceous and Non-Carbonaceous Meteorites Inferred from Molybdenum Isotopes
Budde G. * Burkhardt C. Kleine T. 80th Annual Meeting of the Meteoritical Society 2017 [#6271] abstract (PDF) “Mo isotope systematics manifest a fundamental dichotomy in the genetic heritage of carbonaceous and non-carbonaceous meteorites. We…
A Case for Nebula Scale Mixing Between Non-Carbonaceous and Carbonaceous Chondrite Reservoirs: Testing the Grand Tack Model with Chromium Isotopic Composition of Almahata Sitta Stone 91A
Sanborn M. E. * Yin Q.-Z. Goodrich C. A. Zolensky M. Fioretti A. M. 80th Annual Meeting of the Meteoritical Society 2017 [#6277] abstract (PDF) “We present new Cr isotopic composition results for Almahata Sitta…
A Breccia of Ureilitic and C2 Carbonaceous Chondrite Materials from Almahata Sitta: Implications for the Regolith of Ureilitic Asteroids
Goodrich C. A. * Fioretti A. M. Zolensky M. Fries M. Shaddad M. Kohl I. Young E. Jenniskens P. 80th Annual Meeting of the Meteoritical Society 2017 [#6214] abstract (PDF) “We report the first sample…
Oxygen, Magnesium, and Aluminum Isotopes in the Ivuna CAI: Re-Examining High-Temperature Fractionations in CI Chondrites
Frank D. R. * Huss G. R. Nagashima K. Zolensky M. E. Le L. 80th Annual Meeting of the Meteoritical Society 2017 [#6355] abstract (PDF) “The only whole CAI preserved in the aqueously altered CI…
Oxygen Isotope Ratios of Magnetite in CI-Like Clasts from a Polymict Ureilite
Kita N. T. * Defouilloy C. Goodrich C. A. Zolensky M. E. 80th Annual Meeting of the Meteoritical Society 2017 [#6153] abstract (PDF) “Magnetites in CI-like dark clasts in polymict ureilite show significant depletion in…
Pb-Pb and Rb-Sr Dates for Zagami and Northwest Africa 7034 Using CODEX
Anderson F. S. * Levine J. Whitaker T. J. 80th Annual Meeting of the Meteoritical Society 2017 [#6249] abstract (PDF) “We have produced new Pb-Pb dates of Zagami using CODEX, illustrating how in-situ dating can…
Shergottite lead Isotope Signature in Chassigny and the Nakhlites
Jones J. H. Simon J. I. * 80th Annual Meeting of the Meteoritical Society 2017 [#6331] abstract (PDF) “A model based on recent Pb isotopic analyses is presented that indicates interaction between shergottite and nakhlite/chassignite…
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…
Distinct Chlorine Isotope Reservoirs on Mars. Origins and Interactions
Shearer C. K. * Messenger S. Sharp Z. D. Burger P. V. Nguyen N. McCubbin F. M. 80th Annual Meeting of the Meteoritical Society 2017 [#6364] abstract (PDF) “Chlorine isotopes measured in Chassigny provide evidence…
Petrological and Petrofabric Study of Roberts Massif 04239 Compared to Tafassasset and Brachinites
Hasegawa H. * Mikouchi T. Yamaguchi A. 80th Annual Meeting of the Meteoritical Society 2017 [#6169] abstract (PDF) “The petrology and petrofabrics of Roberts Massif 04239 suggests that it has experienced differentiation processes similar to…
Multiple Igneous Bodies for Nakhlites and Chassignites as Inferred from Olivine Cooling Rates Using Calcium Zoning
Mikouchi T. * Takenouchi A. Zolensky M. E. 80th Annual Meeting of the Meteoritical Society 2017 [#6177] abstract (PDF) “We analyzed Ca zoning of olivine from nakhlites and chassignites to calculate their cooling rates. The…
Magma Emplacement on Mars Inferred from a Comprehensive Suite of Nakhlites and Chassignites
Udry A. * Day J. M. D. Moynier F. 80th Annual Meeting of the Meteoritical Society 2017 [#6027] abstract (PDF) “We combine quantitative textural and bulk rock geochemical observations on a suite of 15 nakhlites…
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…
Measurements of Silica Excess in Plagioclase in Chondrules from Primitive Carbonaceous Chondrites: Implications for 26Al-26Mg Systematics
Chaumard N. * Hertwig A. T. Kita N. T. Tenner T. J. Kimura M. 80th Annual Meeting of the Meteoritical Society 2017 [#6309] abstract (PDF) “Chondrules in 3.05–3.1 CCs contain plagioclases that retained silica excess,…
Nanoscale Imaging Analysis of Organic-Mineral Association in the Murchison Meteorite by NanoIR
Kebukawa Y. * Kobayashi H. Baden N. Urayama N. Kobayashi K. 80th Annual Meeting of the Meteoritical Society 2017 [#6093] abstract (PDF) “We demonstrate infrared imaging analysis of a carbonaceous chondrite with less than 100…
The Rise and Fall of Iron-60
Boehnke P. McKeegan K. D. * Stephan T. Steele R. C. J. Trappitsch R. Davis A. M. Pellin M. J. Liu M.-C. 80th Annual Meeting of the Meteoritical Society 2017 [#6243] abstract (PDF) “RIMS analyses…
Electron Energy-Loss Spectroscopy of Deuterium-Rich Organic Matter in the CM Chondrite Queen Alexandra Range 97990
Haenecour P. * Zega T. J. Bose M. Howe J. Y. 80th Annual Meeting of the Meteoritical Society 2017 [#6138] abstract (PDF) “We report electron energy-loss spectroscopy measurements of a D-rich hotspot identified in the…
Correlated Deuterium and Nitrogen Isotopic Enrichments in Meteoritic Organic Matter
Bose M. * Zega T. J. Haenecour P. Domanik K. 80th Annual Meeting of the Meteoritical Society 2017 [#6033] abstract (PDF) “Two hotspots with correlated N and H isotopic anomalies, as well as two C-rich…
Comparative Microanalytical Study of Solid Organic Material in the CR2 Grove Mountain 021710 and the Ungrouped Carbonaceous Chondrite Ningqiang
Changela H. G. * Zhao X. Miao B. Xia Z. Lin Y. 80th Annual Meeting of the Meteoritical Society 2017 [#6212] abstract (PDF) “Organic material has been characterized in situ using traditional polished thin sections…
Experimental Shock DeComposition of Siderite and the Origin of Magnetite in Martian Meteorite Allan Hills 84001
Bell M. S. * 80th Annual Meeting of the Meteoritical Society 2017 [#6261] abstract (PDF) “ALH 84001 martian meteorite was collected by an ANSMET team in 1984 and in 1996 researchers reported that it contained…
A Hypothesis to Explain the Presence of Amino Acids in the Tagish Lake Meteorite
Bassez M. P. * 80th Annual Meeting of the Meteoritical Society 2017 [#6035] abstract (PDF) “The Tagish Lake meteorite contains organic matter abiotically synthesized. An explanation is proposed on the basis of thermodynamic calculations and…
Formation Mechanism of Iron-Rich Olivine: Experimental Constrains into Early Fluid-Assisted Hydration and Dehydration Processes on Asteroids
Dobricǎ E. * Nuth J. A. Brearley A. J. 80th Annual Meeting of the Meteoritical Society 2017 [#6342] abstract (PDF) “We performed three new experiments in an attempt to synthesize FeO-rich olivine. This study shows…
Cosmogenic Nuclides in Antarctic Meteorites: Opportunities and Directions
Caffee M. W. * Herzog G. F. Jull A. J. T. Nishiizumi K. Welten K. C. 80th Annual Meeting of the Meteoritical Society 2017 [#6150] abstract (PDF) “Cosmogenic nuclide studies of Antarctic meteorites have allowed…
A New Method for Modal Abundance, Chemistry and Density Determination of Fine Grained Matrices of Primitive Chondrites
Zanetta P-M. * Leroux H. Le Guillou C. Zanda B. Hewins R. H. Lewin E. Pont S. 80th Annual Meeting of the Meteoritical Society 2017 [#6274] abstract (PDF) “Analyses of primitive chondrite matrices are not…
Fall and Recovery of the Dingle Dell Meteorite
Devillepoix H. A. R. Bland P. A. Towner M. C. Sansom E. K. Howie R. M. Cupak M. Benedix G. K. Jansen-Sturgeon T. Hartig B. A. D. Cox M. A. Paxman J. P. 80th Annual…
Chondrule Oxygen Isotope Systematics in Unequilibrated Ordinary Chondrites: Insights into Their Nebular Reservoir
Baeza L. Ireland T. R. Ávila J. N. Mallmann G. 80th Annual Meeting of the Meteoritical Society 2017 [#6166] abstract (PDF) “Ordinary chondrites (OCs) have distinct bulk O-isotope composition. The range of chondrule O-isotope composition…
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….
Constraints from Isotopic Dichotomy of Meteorites and from a Trans-Jovian Origin for Carbonaceous Chondrites on the Origin of Chondritic Components
Scott E. R. D. * Krot A. N. Sanders I. S. 80th Annual Meeting of the Meteoritical Society 2017 [#6395] abstract (PDF) “Formation of carbonaceous chondrites beyond Jupiter helps explain CAI abundances in chondrites, differences…
Chondrule Olivine Provenance in Carbonaceous Chondrites: Chemical and Oxygen Isotope Systematics
Bonning G. P. Ireland T. R. Ávila J. N. Mallmann G. 80th Annual Meeting of the Meteoritical Society 2017 [#6151] abstract (PDF) “Bulk chondrites have specific and distinct bulk O-isotopic compositions, yet they appear to…
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…
Cosmic-Ray Exposure Ages of Brachinites
Beard S. P. Swindle T. D. 80th Annual Meeting of the Meteoritical Society 2017 [#6388] abstract “Argon exposure ages have been measured for NWA 6077, NWA 595, NWA 7297, NWA 1500, NWA 4518, and RaS…
Dingle Dell Density and Other Physical Properties
Macke R. J. Benedix G. K. Bland P. A. Desert Fireball Network Team 80th Annual Meeting of the Meteoritical Society 2017 [#6197] abstract “We measure density, porosity, and magnetic susceptibility of the Dingle Dell meteorite…
Oxygen Isotopic Compositions of Fayalite in the CV Chondrite Kaba
Marrocchi Y. abstract (PDF) 80th Annual Meeting of the Meteoritical Society 2017 [#6179] “The oxygen isotopic compositions of fayalite grains in the CV3 carbonaceous chondrites Kaba bring information on the origin of water accreted by…
Microanalytical Investigation of Fine-Grained Matrix Material in Elephant Moraine 92042: Effects of Parent Body Processing on Primitive Components
Koch I. Floss C. * 80th Annual Meeting of the Meteoritical Society 2017 [#6013] abstract (PDF) “Aqueous alteration has affected presolar silicate abundances in the CR chondrite EET 92042 and has resulted in elemental changes…
A Speculative “Fiefdom” Model for Chondrite Origins
Melosh H. J. * Bland P. A. Collins G. S. Johnson B. C. 80th Annual Meeting of the Meteoritical Society 2017 [#6239] abstract (PDF) “Distinct chondrite classes, complementarity of chondrules and matrix, and chondrule ages…
In Situ Thermal Imagery of Antarctic Meteorites and Their Stability on the Ice Surface
Harvey R. P. Righter M. Karner J. M. Hynek B. Keller L. Meshik A. Mittlefehldt D. W. Radebaugh J. Rougeux B. Schutt J. W. 80th Annual Meeting of the Meteoritical Society 2017 [#6113] abstract (PDF)
Chondrule-Cored Aggregates in CV Chondrites: Origin by Chondrule Formation Followed by Olivine Condensation
Fagan T. J. Yasuda T. Nagashima K. Krot A. N. 80th Annual Meeting of the Meteoritical Society 2017 [#6202] abstract “Chondrule-cored aggregates (ChCAs) are a new component of CV chondrites, in which early-stage pyroxene crystallized…
Water-Bearing, Volatile-Rich Clasts in Howardites and Polymict Ureilites — Carriers of Deuterium-Enriched Waters not Sampled by Individual Meteorites
Patzek M. * Hoppe P. Bischoff A. Visser R. John T. abstract (PDF) 80th Annual Meeting of the Meteoritical Society 2017 [#6183] “D/H ratios of volatile-rich clasts from howardites and polymict ureilites are distinct from…
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 Evolution of the Protoplanetary Disk Recorded by Nucleosynthetic Isotope Variations of Variable Stellar Origin in Refractory Inclusions
Schönbächler M. * Lai Y.-J. Henshall T. Fehr M. A. Cook D. L. Bullock E. S. 80th Annual Meeting of the Meteoritical Society 2017 [#6222] abstract (PDF) “New CAI data confirm the homogeneous distribution of…
26Al Isotope in Pultusk Meteorite Fragments
Tymiński Z. Krzesińska A. M. Burakowska A. Stępisiewicz M. Tymińska K. Dziel T. Olech A. Żołądek P. 80th Annual Meeting of the Meteoritical Society 2017 [#6278] abstract “Low deviations in 26Al distribution between analysed Pultusk…
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…
Water on Asteroids: The Curious Case of R-Chondrite Miller Range 11207
Gross J. * Treiman A. H. Connolly H. C. Jr. 80th Annual Meeting of the Meteoritical Society 2017 [#6145] abstract (PDF) “MIL 11207 is a R-6 chondrite and contains ~12 vol% OH-bearing minerals — amphibole,…
Finding Meteorites on Improbable Grounds: The Western Europe Case
Rochette P., Gattacceca J., Laubenstein M. 80th Annual Meeting of the Meteoritical Society 2017 [#6021] abstract “We present the statistics of finds in Europe and the case of Abbans Dessous and Mercantour declared recently found…
50Ti Evidence for Different Refractory Precursors in Chondrules
Ebert S. Render J. Brennecka G. A. Burkhardt C. Bischoff A. Kleine T. 80th Annual Meeting of the Meteoritical Society 2017 [#6255] abstract “Different refractory precursors in chondrules are necessary to explain the different 50Ti…
Breccia Classification of CM Chondrites
Bischoff A., Ebert S., Metzler K., Lentfort S. 80th Annual Meeting of the Meteoritical Society 2017 [#6089] abstract “CM chondrites are heavily brecciated rocks. We suggest to classify CM chondrites in the same way as…
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…
Atmospheric Trajectory and Orbit of the Osceola Meteorite (January 24, 2016)
Gritsevich M., * Lyytinen E., Hankey M., Meier M. M. M., Matson R., Fries M. 80th Annual Meeting of the Meteoritical Society 2017 [#6188] abstract “We present a summary on the trajectory reconstruction, dark flight…
Insights into Parent Body Alteration from the Distribution of Water and Hydroxyl in Carbonaceous Chondrites
Hamilton V. E. * Abreu N. M. Connolly H. C. Jr. abstract (PDF) 80th Annual Meeting of the Meteoritical Society 2017 [#6263] “We are using µ-FTIR to characterize the spatial distribution of water and hydroxyl…
CM2 to CM1 Iron Sulfides, from Primary Nebular to Altered Asteroidal
Singerling S. A. * Corrigan C. M. Brearley A. J. abstract (PDF) 80th Annual Meeting of the Meteoritical Society 2017 [#6167] “This study synthesizes our observations of CM chondrite iron sulfides, from primary characteristics in…
Mineralogy, Petrology and Chronology of the Dingle Dell Meteorite
Benedix G. K. * Forman L. V. Daly L. Godel B. Esteban L. Meier M. M. M. Maden C. Busemann H. Yin Q.-Z. Sanborn M. Ziegler K. Friedrich J. M. Strasser J. W. Welten K….
The Effect of Aqueous Alteration on Primordial Noble Gases in CM Chondrites
Weimer D. * Busemann H. Alexander C. M. O’D. Maden C. abstract (PDF) 80th Annual Meeting of the Meteoritical Society 2017 [#6300] “We have analyzed 32 CM chondrites for their noble gas contents and isotopic…
Petrology and Bulk Composition of the Oudiyat Sbaa Fluororichterite-Bearing EH5 Chondrite: A Witnessed Fall from Eastern Morocco
Irving A. J., Kuehner S. M., Gao Y., Chen Y., Lapen T. J., Pitt D. 80th Annual Meeting of the Meteoritical Society 2017 [#6383] abstract “We characterize a recent Moroccan enstatite chondrite fall and report…
Mean Atomic Weight of Braunschweig Meteorite
Szurgot M., Wach R. A., Bartoschewitz R. 80th Annual Meeting of the Meteoritical Society 2017 [#6002] abstract “Mean atomic weight Amean, and atomic number of Braunschweig meteorite were determined and analyzed. Classification of Braunschweig, as…
Almahata Sitta Meteorite — Compilation of Magnetic Susceptibility Database
Hoffmann V. H. Funaki M. Wimmer K. Hochleitner R. Kaliwoda M. Mikouchi T. Zolensky M. E. 80th Annual Meeting of the Meteoritical Society 2017 [#6290] abstract “An overview of the magnetic susceptibility (MS) of all…
Petrographic and Isotopic C and O Survey of the Earliest Stages of Aqueous Alteration of CM Chondrites
Vacher L. G. * Marrocchi Y. Villeneuve J. Verdier-Paoletti M. J. Gounelle M. 80th Annual Meeting of the Meteoritical Society 2017 [#6031] abstract “CM Paris shows two populations of carbonates: T1a and a new T0….
Minerals as Markers of Fluid Alteration in Paris Chondrite
Pignatelli I. * Marrocchi Y. Mugnaioli E. Bourdelle F. Gounelle M. 80th Annual Meeting of the Meteoritical Society 2017 [#6189] abstract “This nanoscale study deals with tochilinite/cronstedtite intergrowths formed by pseudomorphism of anhydrous minerals in…
26Al-26Mg Systematics of the Ungrouped Achondrite Northwest Africa 11119: Timing of Extraterrestrial Silica-Rich Magmatism
Dunlap D. R. * Wadhwa M. Agee C. 80th Annual Meeting of the Meteoritical Society 2017 [#6268] abstract “Ungrouped achondrite NWA 11119 has an andesite-dacite bulk SiO2. The high precision 26Al-26Mg internal isochron age is…
The neutron capture process in the He shell in core-collapse supernovae: Presolar silicon carbide grains as a diagnostic tool for nuclear astrophysics
Marco Pignatari, Peter Hoppe, Reto Trappitsch, Chris Fryer, F.X. Timmes, Falk Herwig, Raphael Hirschi Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 8 June 2017 LINK “Carbon-rich presolar grains are found in primitive…
Do meteoritic silicon carbide grains originate from asymptotic giant branch stars of super-solar metallicity?
Maria Lugaro, Amanda I. Karakas, Mária Pető, Emese Plachy Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 8 June 2017 LINK “We compare literature data for the isotopic ratios of Zr, Sr, and…
Presolar Silicates in the Matrix and Fine-grained Rims Around Chondrules in Primitive CO3.0 Chondrites: Evidence for Pre-Accretionary Aqueous Alteration of the Rims in the Solar Nebula
Pierre Haenecour, Christine Floss, Thomas J. Zega, Thomas K. Croat, Alian Wang, Bradley L. Jolliff, Paul Carpenter Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 8 June 2017 LINK “To investigate the origin…
