Archive for July 2021

Distinguishing volcanic from impact glasses—The case of the Cali glass (Colombia)

31/07/2021 20:26 · by karmaka · in desert glass, impact / impact-structures, meteorite

Ludovic Ferrière, Alvaro P. Crósta, Wencke Wegner, Eugen Libowitzky, Fabio Iwashita, Christian Koeberl Geology (2021) LINK “Natural glass occurs on Earth in different geological contexts, mainly as volcanic glass, fulgurites, and impact glass. All these…

Evidence from phosphorus X-ray mapping for a multistep process in the formation of olivine phenocrysts in FeO-rich porphyritic chondrules

31/07/2021 11:16 · by karmaka · in chondrule, porphyritic (P)

Alan E. Rubin, Bastian Baecker Meteoritics & Planetary ScienceVersion of Record online: 31 July 2021 LINK “Phosphorus X-ray maps of olivine phenocrysts in many type II (FeO-rich) porphyritic chondrules in LL3.00 Semarkona and CO3.05 Y…

The composition of CI chondrites and their contents of chlorine and bromine: Results from instrumental neutron activation analysisOPEN ACCESS

31/07/2021 11:00 · by karmaka · in carbonaceous chondrite, CI

H. Palme, J. Zipfel Meteoritics & Planetary ScienceVersion of Record online: 30 July 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Between 1973 and 1994, 15 samples of CI chondrites were analyzed by neutron activation analysis at…

Chicxulub impact structure, IODP‐ICDP Expedition 364 drill core: Geochemistry of the granite basementOPEN ACCESS

29/07/2021 12:55 · by karmaka · in impact / impact-structures

Jean-Guillaume Feignon, Sietze J. de Graaff, Ludovic Ferrière, Pim Kaskes, Thomas Déhais, Steven Goderis, Philippe Claeys, Christian Koeberl Meteoritics & Planetary ScienceFirst Published: 29 July 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The IODP-ICDP Expedition 364…

Yilan crater, China: Evidence for an origin by meteorite impact

29/07/2021 12:52 · by karmaka · in crater, impact / impact-structures

Ming Chen, Christian Koeberl, Dayong Tan, Ping Ding, Wansheng Xiao, Ning Wang, Yiwei Chen, Xiande Xie Meteoritics & Planetary ScienceFirst Published: 29 July 2021 LINK “The Yilan crater is 1.85 km in diameter and is…

Review of synergic meteor observations: linking the results from cameras, ionosondes, infrasound and seismic detectors

29/07/2021 00:01 · by karmaka · in meteor/meteoroid/bolide, sightings & instrumental recordings

Á Kereszturi, V Barta, I Bondár, Cs Czanik, A Igaz, P Mónus, D Rezes, L Szabados, B D Pál Monthly Notices of the Royal Astronomical Society, Volume 506, Issue 3, September 2021, Pages 3629–3640 LINK…

Potassium elemental and isotope constraints on the formation of tektites and element loss during impacts

28/07/2021 17:14 · by karmaka · in desert glass, tektite / impact ejecta

Tomáš Magna, Yun Jiang, Roman Skála, Kun Wang, Paolo A.Sossi, Karel Žák Geochimica et Cosmochimica ActaAvailable online 28 July 2021 LINK “Potassium elemental and isotope systematics were investigated for a suite of central European tektites…

A model for evolving crust on 4 Vesta through combined compositional and thermal modelling

28/07/2021 11:26 · by karmaka · in diogenite, eucrite, HED achondrite, Vesta

Jennifer T. Mitchell, Andrew G. Tomkins, Christopher Newton, Tim E. Johnson Earth and Planetary Science LettersVolume 571, 1 October 2021, 11710 LINK “Highlights • pMELTS modelling suggests that diogenites require a Ca-poor source.• Early extraction…

The unique spectral and geomorphological characteristics of pitted impact deposits associated with Marcia crater on Vesta

28/07/2021 11:18 · by karmaka · in impact / impact-structures, reflectance spectra, tektite / impact ejecta, Vesta

T. Michalik, K.-D. Matz, S.E. Schröder, R. Jaumann, K. Stephan, K. Krohn, F. Preusker, C.A. Raymond, C.T. Russell, K.A. Otto IcarusIn Press, Journal Pre-proof, Available online 27 July 2021 LINK “Highlights • Pitted impact deposits…

Constraints on planetesimal accretion inferred from particle-size distribution in CO chondritesOPEN ACCESS

28/07/2021 10:13 · by karmaka · in accretion, asteroid, carbonaceous chondrite, chondrule, CO, refractory inclusions, thermal metamorphism

Gabriel A. Pinto, Yves Marrocchi, Alessandro Morbidelli, Sébastien Charnoz, Maria Eugenia Varela, Kevin Soto, Rodrigo Martínez, Felipe Olivares Accepted in ApJL PDF (OPEN ACCESS) “The formation of planetesimals was a key step in the assemblage…

The Reflectance Spectra of CV-CK Carbonaceous chondrites from the Near Infrared to the VisibleOPEN ACCESS

28/07/2021 10:05 · by karmaka · in carbonaceous chondrite, CK, CV, CV-CK, Hayabusa-2 / 162173 Ryugu, OSIRIS-REx / 101955 Bennu, reflectance spectra

Safoura Tanbakouei, J.M. Trigo-Rodriquez, J. Llorca, C.E. Moyano-Cambero, I.P. Williams, A.S. Rivkin Accepted for publication in MNRAS on July 19th, 2021 PDF (OPEN ACCESS) LINK “Carbonaceous chondrite meteorites are so far the only available samples…

Bolide fragment detection in Doppler weather radar data using artificial intelligence / machine learning

27/07/2021 21:42 · by karmaka · in meteor/meteoroid/bolide, meteorite search & recovery, sightings & instrumental recordings

Brendon Smeresky, Paul Abell, Marc Fries, Mike Hankey Meteoritics & Planetary ScienceFirst Published: 27 July 2021 LINK “Unsupervised machine learning methods present a promising approach for detecting fragments produced from meteors and bolides as distinct…

The Global Meteor Network — Methodology and First ResultsOPEN ACCESS

27/07/2021 12:29 · by karmaka · in meteor/meteoroid/bolide, sightings & instrumental recordings

Denis Vida, Damir Šegon, Peter S. Gural, Peter G. Brown, Mark J.M. McIntyre, Tammo Jan Dijkema, Lovro Pavletić, Patrik Kukić, Michael J. Mazur, Peter Eschman, Paul Roggemans, Aleksandar Merlak, Dario Zubović Accepted for publication in…

Evaluating urban micrometeorites as a research resource — A large population collected from a single rooftopOPEN ACCESS

27/07/2021 11:39 · by karmaka · in micrometeorites

M. D. Suttle, T. Hasse, L. Hecht Meteoritics & Planetary ScienceVersion of Record online: 27 July 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We report the recovery and characterization of a new urban micrometeorite collection derived…

Petrology and mineralogy of an igneous clast in the Northwest Africa 1685 (LL4) chondrite: Comparison with alkali-rich igneous clasts in LL-chondritic breccias

26/07/2021 20:50 · by karmaka · in clast, LL, ordinary chondrite

Takafumi Niihara, Tatsunori Yokoyama, Tomoko Arai, Keiji Misawa Meteoritics & Planetary ScienceFirst Published: 26 July 2021 LINK “We have conducted petrological and mineralogical studies on an igneous clast in the Northwest Africa (NWA) 1685 (LL4)…

Complicated pressure – temperature path recorded in the eucrite Padvarninkai

26/07/2021 15:17 · by karmaka · in eucrite, shock metamorphism

Masaaki Miyahara, Akira Yamaguchi, Eiji Ohtani, Naotaka Tomioka, Yu Kodama Meteoritics & Planetary ScienceFirst Published: 26 July 2021 LINK “High-pressure minerals in the eucrite Padvarninkai were investigated. Parts of anorthitic plagioclase and tridymite in the…

Identification and pairing reassessment of unequilibrated ordinary chondrites from four Antarctic dense collection areas

25/07/2021 12:41 · by karmaka · in chondrite classification, ordinary chondrite, UOC

Kevin Righter, John Schutt, Nicole Lunning, Ralph Harvey, James Karner Meteoritics & Planetary ScienceFirst Published: 24 July 2021 LINK “New analyses of Cr2O3 contents of olivines from type II chondrules in unequilibrated chondrites (UOC) from…

Nickel–manganese variability in olivine and Al‐in‐olivine thermometry for olivine‐phyric shergottites

25/07/2021 12:37 · by karmaka · in shergottite

Sierra R. Ramsey, Geoffrey H. Howarth, Arya Udry, Juliane Gross Meteoritics & Planetary ScienceFirst Published: 24 July 2021 LINK “Olivine-phyric shergottites represent primitive Martian magmas, but they commonly contain excess olivine and rarely represent primary…

Infrasound signals of fireballs detected by the Geostationary Lightning MapperOPEN ACCESS

25/07/2021 10:16 · by karmaka · in meteor/meteoroid/bolide, sightings & instrumental recordings

T. Ott, E. Drolshagen, D. Koschny, G. Drolshagen, C. Pilger, P. Gaebler, P. Hupe, P. Mialle, J. Vaubaillon and B. Poppe A&A 654, A98 (2021)Received 16 April 2021 / Accepted 19 July 2021 PDF (OPEN…

Trace Elemental Behavior in the Solar Nebula: Synchrotron X-ray Fluorescence Analyses of CM and CR Chondritic Iron Sulfides and Associated MetalOPEN ACCESS

24/07/2021 13:33 · by karmaka · in carbonaceous chondrite, chondrule, CM, CR

S.A. Singerling, S.R. Sutton, A. Lanzirotti, M. Newville, A.J. Brearley Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 24 July 2021 LINK PDF (OPEN ACCESS) “We have performed a coordinated focused ion beam (FIB)-scanning…

Infrasound detection and altitude estimation associated with the December 22, 2020 Yushu fireballOPEN ACCESS

24/07/2021 00:21 · by karmaka · in meteor/meteoroid/bolide, sightings & instrumental recordings

Wei Cheng, Pengxiao Teng, Jun Lyu, Yijing Dai Geoscience Letters, Volume 8, Article number: 26 (2021) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “A large bolide was reported at 23:23:33 UTC on December 22, 2020, at a…

53Mn-53Cr systematics of sphalerite in enstatite chondrites

23/07/2021 17:30 · by karmaka · in enstatite chondrite, radiometric dating

Jens Hopp, Julian-Christopher Storck, Thomas Ludwig, Smail Mostefaoui, Rainer Altherr, Ulrich Ott, Hans-Peter Meyer, Mario Trieloff Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 23 July 2021 LINK “Highlights • Mn-Cr systematics of sphalerite…

Ryugu’s observed volatile loss did not arise from impact heating aloneOPEN ACCESS

22/07/2021 14:18 · by karmaka · in asteroid, C-type, Hayabusa-2 / 162173 Ryugu, space missions

Kosuke Kurosawa, Ryota Moriwaki, Hikaru Yabuta, Ko Ishibashi, Goro Komatsu & Takafumi Matsui Communications Earth & Environment, Volume 2, Article number: 146 (2021) LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Carbonaceous asteroids, including Ryugu and Bennu, which…

AMBITION – comet nucleus cryogenic sample returnOPEN ACCESS

22/07/2021 10:53 · by karmaka · in comet, space missions

D. Bockelée-Morvan, Gianrico Filacchione, Kathrin Altwegg, Eleonora Bianchi, Martin Bizzarro, Jürgen Blum, Lydie Bonal, Fabrizio Capaccioni, Mathieu Choukroun, Claudio Codella, Hervé Cottin, Björn Davidsson, Maria Cristina De Sanctis, Maria N. Drozdovskaya, Cecile Engrand, Marina Galand,…

Exposure history, petrology, and shock-induced sulfidization reaction of Alatage Mountain 001 strewn field samples

22/07/2021 10:32 · by karmaka · in L, ordinary chondrite

Shijie Li, Ingo Leya, Shijie Wang, Thomas Smith, Huiming Bao, Yan Fan, Bing Mo Meteoritics & Planetary ScienceVersion of Record online: 22 July 2021 LINK “Several hundred meteorites with a total mass of over 100…

Quantitative shock measurement of olivine in ureilite meteorites

20/07/2021 09:54 · by karmaka · in shock metamorphism, ureilite

Yaozhu Li, Phil J. A. McCausland, Roberta L. Flemming Meteoritics & Planetary ScienceVersion of Record online: 19 July 2021 LINK “Ureilites are the second most abundant achondrite meteorite group, yet they are from an unknown…

Organic matter in carbonaceous chondrite lithologies of Almahata Sitta: Incorporation of previously unsampled carbonaceous chondrite lithologies into ureilitic regolith

19/07/2021 18:30 · by karmaka · in Almahata Sitta, carbonaceous chondrite, ureilite, witnessed fall

Yoko Kebukawa, Michael. E. Zolensky, Cyrena A. Goodrich, Motoo Ito, Nanako O. Ogawa, Yoshinori Takano, Naohiko Ohkouchi, Kento Kiryu, Motoko Igisu, Takazo Shibuya, Matthew A. Marcus, Takuji Ohigashi, James Martinez, Yu Kodama, Muawia H. Shaddad,…

IIE irons: Origin, relationship to ordinary chondrites, and evidence for siderophile-element fractionations caused by chondrule formation

19/07/2021 18:24 · by karmaka · in chondrule formation, IIE, iron, ordinary chondrite

Alan E. Rubin Meteoritics & Planetary ScienceVersion of Record online: 19 July 2021 LINK “IIE irons were derived from chondritic precursors that were the most reduced ordinary chondrites. The bulk chemical (e.g., Ir/Ni, Ir/Au, Au/Ni,…

Constraints on the origins of iron silicide spherules in ultrahigh-temperature distal impact ejectaOPEN ACCESS

19/07/2021 18:21 · by karmaka · in impact / impact-structures, tektite / impact ejecta

Sergei Batovrin, Boris Lipovsky, Yury Gulbin, Yury Pushkarev, Yury A. Shukolyukov Meteoritics & Planetary ScienceVersion of Record online: 19 July 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Terrestrially occurring iron silicide spherules, described in the geological…

Asteroid 16 Psyche: Shape, Features, and Global MapOPEN ACCESS

18/07/2021 11:29 · by karmaka · in asteroid, Psyche, space missions, surface

Michael K. Shepard, Katherine de Kleer, Saverio Cambioni, Patrick A. Taylor, Anne K. Virkki, Edgard G. Rívera-Valentin, Carolina Rodriguez Sanchez-Vahamonde, Luisa Fernanda Zambrano-Marin, Christopher Magri, David Dunham The Planetary Science Journal, Volume 2, Number 4Published:…

RAMÓN DE LAS YAGUAS meteorite fall at ~16.56 UTC on 10 July 2021 (L6, 2.76 kg) near El Ramón de las Yaguas, Santiago de Cuba province, Cuba

17/07/2021 13:14 · by karmaka · in L, meteorite, ordinary chondrite, Ramón de las Yaguas

Last update: 24 January 2026 On 16 July 2021 the Ciencia Tecnología y Medio Ambiente (CITMA) of Cuba reported that on 10 July a 2.76-kilogram meteorite (13.7 cm x 12.9 cm x 9.8 cm) was…

Modeling the Mechanisms of the Destruction of the Surface Layer of a Meteoroid under the Influence of a Thermal Factor

15/07/2021 18:00 · by karmaka · in meteor/meteoroid/bolide

V. A. Andrushchenko, V. A. Goloveshkin & N. G. Syzranova Mathematical Models and Computer Simulations, Volume 13, pages 698–704 (2021)Published: 14 July 2021 LINK “Based on the equations of the classical linear theory of elasticity,…

Ultrafast olivine-ringwoodite transformation during shock compressionOPEN ACCESS

14/07/2021 15:41 · by karmaka · in asteroid, shock metamorphism

Takuo Okuchi, Yusuke Seto, Naotaka Tomioka, Takeshi Matsuoka, Bruno Albertazzi, Nicholas J. Hartley, Yuichi Inubushi, Kento Katagiri, Ryosuke Kodama, Tatiana A. Pikuz, Narangoo Purevjav, Kohei Miyanishi, Tomoko Sato, Toshimori Sekine, Keiichi Sueda, Kazuo A. Tanaka,…

Petrology and classification of A-9003, A 09535, and Y-82094: A new type of carbonaceous chondrite

13/07/2021 16:41 · by karmaka · in carbonaceous chondrite, chondrite classification, ungrouped

M. Kimura, R. C. Greenwood, M. Komatsu, N. Imae, A. Yamaguchi, R. Sato Meteoritics & Planetary ScienceVersion of Record online: 12 July 2021 LINK “Most carbonaceous (C) chondrites are classified into eight major groups: CI,…

Geologic History and Crater Morphology of Asteroid (162173) Ryugu Crater morphology and chronology of asteroid Ryugu

12/07/2021 17:42 · by karmaka · in asteroid, Cb-type, crater, Hayabusa-2 / 162173 Ryugu, space missions

Y. Cho, T. Morota, M. Kanamaru, N. Takaki, K. Yumoto, C. M. Ernst, M. Hirabayashi, O. S. Barnouin, E. Tatsumi, K. A. Otto, N. Schmitz, R. J. Wagner, R. Jaumann, H. Miyamoto, H. Kikuchi, R….

Exploring the environments of Martian impact-generated hydrothermal systems and their potential to support lifeOPEN ACCESS

12/07/2021 13:35 · by karmaka · in impact / impact-structures, Mars

Nisha K. Ramkissoon, Stuart M. R. Turner, Michael C. Macey, Susanne P. Schwenzer, Mark H. Reed, Victoria K. Pearson, Karen Olsson-Francis Meteoritics & Planetary ScienceVersion of Record online: 12 July 2021 LINK (OPEN ACCESS)PDF (OPEN…

Melt inclusions in chassignite NWA 2737: A link between processes recorded in Martian meteorites and rocks at Gale crater

10/07/2021 17:24 · by karmaka · in chassignite, Mars, martian

Peiyu Wu, Esteban Gazel, Arya Udry, Jacob B. Setera, Amanda Ostwald Meteoritics & Planetary ScienceVersion of Record online: 10 July 2021 LINK “Northwest Africa (NWA) 2737, one of the only three discovered Martian chassignites, provides…

Survival of presolar p-nuclide carriers in the nebula revealed by stepwise leaching of Allende refractory inclusionsOPEN ACCESS

09/07/2021 22:07 · by karmaka · in CAI, early chronology, presolar grains, refractory inclusions, solar system

Bruce L. A. Charlier, François L. H. Tissot, Hauke Vollstaedt, Nicolas Dauphas, Colin J. N. Wilson, Ren T. Marquez Science Advances 09 Jul 2021:Vol. 7, no. 28, eabf6222 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The 87Rb-87Sr…

The astrophysical context of collision processes in meteorites

09/07/2021 21:55 · by karmaka · in asteroid, chondrite components, meteorite, ordinary chondrite, solar system, surface

Yves Marrocchi, Marco Delbo, Matthieu Gounelle Meteoritics & Planetary ScienceVersion of Record online: 09 July 2021 LINK “Chondrites are leftover solids from the early evolution of the solar protoplanetary disk that never experienced melting since…

Neutron capture 128Xe and 129Xe in the San Juan mass of the Campo del Cielo IAB iron meteorite: Evidence for a high fluence of thermalized neutronsOPEN ACCESS

09/07/2021 18:34 · by karmaka · in IAB, iron

O. Pravdivtseva, M. E. Varela, A. Meshik, A. J. Campbell, M. Saavedra, D. Topa, Meteoritics & Planetary ScienceVersion of Record online: 09 July 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The petrographic study of the San…

Revisiting the paleomagnetism of Muong Nong layered tektites: Implications for their formation processOPEN ACCESS

09/07/2021 18:31 · by karmaka · in tektite / impact ejecta

Jérôme Gattacceca, Pierre Rochette, Yoann Quesnel, Sounthone Singsoupho, Meteoritics & Planetary ScienceVersion of Record online: 09 July 2021 LINK PDF (OPEN ACCESS) Submitted: 22 October 2021 “Among Australasian tektites, the so-called Muong Nong tektites stand…

Impacts on Ceres and Vesta: Source regions, cratering, and fragmentationOPEN ACCESS

09/07/2021 14:27 · by karmaka · in asteroid, Ceres, crater, Vesta

Patricio Zain, Romina Di Sisto, Gonzalo de Elia Astronomy & AstrophysicsA&A, Forthcoming article, Accepted: 24 June 2021 PDF (OPEN ACCESS)LINK “We perform a study on the impacts on Ceres and Vesta. We aim to determine…

Spectral diversity of the inner belt primitive asteroid background population

09/07/2021 07:03 · by karmaka · in asteroid, Hayabusa-2 / 162173 Ryugu, reflectance spectra

Anicia Arredondo, Humberto Campins, Noemi Pinilla-Alonso, Julia de León, Vania Lorenzi, David Morate, Juan Luis Rizos, Mário De Prá IcarusIn Press, Journal Pre-proof, Available online 9 July 2021 LINK “Highlights • New NIR observations of…

Dark Primitive Asteroids Account for a Large Share of K/Pg-Scale Impacts on the EarthOPEN ACCESS

09/07/2021 06:56 · by karmaka · in asteroid, carbonaceous chondrite, impact / impact-structures

David Nesvorny, William F. Bottke, Simone Marchi Icarus PDF (OPEN ACCESS) LINK (Update: 15 July 2021) “Highlights • We develop a dynamical model for large near-Earth asteroids to understand the occurrence rate and nature of…

Calculation of a magnetic force acting on small superconducting celestial bodiesOPEN ACCESS

08/07/2021 21:19 · by karmaka · in asteroid, IAB, iron, ureilite

Lukasz Tomkow The European Physical Journal Plus volume 136, Article number: 730 (2021)Published: 08 July 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Recent discoveries of superconducting phases in the samples of meteorites suggest the possibility of…

Minimum perihelion distances and associated dwell times for near-Earth asteroidsOPEN ACCESS

08/07/2021 14:58 · by karmaka · in asteroid, carbonaceous chondrite, ordinary chondrite, parent body, parent body

Athanasia Toliou, Mikael Granvik, Georgios Tsirvoulis Monthly Notices of the Royal Astronomical Society, stab1934Published: 08 July 2021 LINK PDF (OPEN ACCESS) (preprint) “The observed near-Earth asteroid population contains very few objects with small perihelion distances,…

Oxygen and Al-Mg isotopic constraints on cooling rate and age of partial melting of an Allende Type B CAI, Golfball

08/07/2021 06:57 · by karmaka · in CAI, carbonaceous chondrite, CV, type A

Noriyuki Kawasaki, Shoichi Itoh, Naoya Sakamoto, Steven B. Simon, Daiki Yamamoto, Hisayoshi Yurimoto Meteoritics & Planetary ScienceVersion of Record online: 07 July 2021 LINK “Coarse-grained, igneous Ca-Al-rich inclusions (CAIs) in CV chondrites formed through multiple…

Interstellar Now! Missions to Explore Nearby Interstellar Objects

07/07/2021 22:16 · by karmaka · in asteroid, meteor/meteoroid/bolide, space missions

Andreas M. Hein, T. Marshall Eubanks, Manasvi Lingam, Adam Hibberd, Dan Fries, Jean Schneider, Pierre Kervella, Robert Kennedy, Nikolaos Perakis, Bernd Dachwald Advances in Space ResearchAvailable online 7 July 2021 LINK “The recently discovered first…

A preparation sequence for multi-analysis of µm-sized extraterrestrial and geological samples

07/07/2021 15:31 · by karmaka · in analysis techniques, curation, space missions

Alice Aléon-Toppani, Rosario Brunetto, Jérôme Aléon, Zelia Dionnet, Stefano Rubino, Dan Levy, David Troadec, François Brisset, Ferenc Borondics, Andrew King Meteoritics & Planetary ScienceVersion of Record online: 07 July 2021 LINK “With the recent and…

Tellurium isotope cosmochemistry: Implications for volatile fractionation in chondrite parent bodies and origin of the late veneer

06/07/2021 17:03 · by karmaka · in accretion, accretion, Earth, enstatite chondrite, ordinary chondrite, planets/planetesimals, R chondrite

Jan L. Hellmann, Timo Hopp, Christoph Burkhardt, Harry Becker, Mario Fischer-Gödde, Thorsten Kleine Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 6 July 2021 LINK “Tellurium stable isotope compositions and abundances (δ128/126Te relative to…

The Effect of a Strong Pressure Bump in the Sun’s Natal Disk: Terrestrial Planet Formation via Planetesimal Accretion Rather than Pebble Accretion

06/07/2021 16:53 · by karmaka · in accretion, accretion, early chronology, Earth, planets/planetesimals, solar system

André Izidoro, Bertram Bitsch, and Rajdeep Dasgupta The Astrophysical Journal, Volume 915, Number 1 LINK “Mass-independent isotopic anomalies of carbonaceous and noncarbonaceous meteorites show a clear dichotomy suggesting an efficient separation of the inner and…

Fingerprinting the Cretaceous-Paleogene boundary impact with Zn isotopesOPEN ACCESS

05/07/2021 14:40 · by karmaka · in carbonaceous chondrite, impact / impact-structures, meteor/meteoroid/bolide

Ryan Mathur, Brandon Mahan, Marissa Spencer, Linda Godfrey, Neil Landman, Matthew Garb, D. Graham Pearson, Sheng-Ao Liu & Francisca E. Oboh-Ikuenobe Nature Communications volume 12, Article number: 4128 (2021)Published: 05 July 2021 LINK (OPEN ACCESS)PDF…

Mineralogy of fine-grained matrix, fine-grained rim, chondrule rim, and altered mesostasis of a chondrule in Asuka 12169, one of the least altered CM chondrites

04/07/2021 16:27 · by karmaka · in aqueous alteration, carbonaceous chondrite, CM

Takaaki Noguchi, Masahiro Yasutake, Akira Tsuchiyama, Akira Miyake, Makoto Kimura, Akira Yamaguchi, Naoya Imae, Kentaro Uesugi, Akihisa Takeuchi Polar ScienceAvailable online 3 July 2021 LINK “Mineralogy of fine-grained matrix (FGM), fine-grained rim (FGR), chondrule rim,…

UV-visible-infrared spectral survey of Antarctic carbonaceous chondrite chips

04/07/2021 16:25 · by karmaka · in analysis techniques, asteroid, carbonaceous chondrite, reflectance spectra, space missions

T.Hiroi, H. Kaiden, N. Imae, K. Misawa, H. Kojima, S. Sasaki, M. Matsuoka, T. Nakamura, D.L. Bish, K. Ohtsuka, K.T. Howard, K.R. Robertson, R.E. Milliken Polar ScienceAvailable online 29 June 2021 LINK “Antarctic carbonaceous chondrite…

Laboratory Investigations Coupled to VIR/Dawn Observations to Quantify the Large Concentrations of Organic Matter on CeresOPEN ACCESS

04/07/2021 00:23 · by karmaka · in Ceres, Dawn, organic matter, space missions

Vassilissa Vinogradoff, Giovanni Poggiali, Andrea Raponi, Mauro Ciarniello, Simone De Angelis, Marco Ferrari, Julie C. Castillo-Rogez, John Brucato, Maria-Cristina De Sanctis Minerals 2021, 11(7), 719Published: 3 July 2021 LINK (OPEN ACCESS)PDF (download) “Organic matter directly…

Regional Photometric Modeling of Asteroid (101955) BennuOPEN ACCESS

03/07/2021 10:20 · by karmaka · in asteroid, OSIRIS-REx / 101955 Bennu, space missions, surface

D. R. Golish, J.-Y. Li, B. E. Clark, D. N. DellaGiustina, X.-D. Zou, J. L. Rizos, P. H. Hasselmann, C. A. Bennett, S. Fornasier, C. Drouet d’Aubigny, B. Rizk, M. G. Daly, O. S. Barnouin,…

Northwest Africa (NWA) 12563 and ungrouped C2 chondrites: Alteration styles and relationships to asteroidsOPEN ACCESS

03/07/2021 10:09 · by karmaka · in asteroid, carbonaceous chondrite, CM, K-type, OSIRIS-REx / 101955 Bennu, ungrouped

P.-M. Zanetta, B. Zanda, C.Le Guillou, J. Gattacceca, C. Sognzoni, S. Pont, L. Piani, T. Rigaudier, H. Leroux, R. Brunetto, R. Maupin, Z. Djouadi, S. Bernard, D. Deldicque, V. Malarewicz, Z. Dionnet, A. Aléon-Toppani, A….

Terrestrial planet compositions controlled by accretion disk magnetic fieldOPEN ACCESS

03/07/2021 00:22 · by karmaka · in accretion, planets/planetesimals

William F. McDonough & Takashi Yoshizaki Progress in Earth and Planetary Science, Volume 8, Article number: 39 (2021)Review LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Terrestrial planets (Mercury, Venus, Earth, and Mars) are differentiated into three layers:…

Campo del Cielo Strewn Field: Modeling and Comparison with Observations

02/07/2021 18:24 · by karmaka · in historic fall, IAB, iron, meteor/meteoroid/bolide

Schmalen A. *, Luther R., Artemieva N. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6044) PDF Reconstruction of the Campo del Cielo impact event, i.e., to estimate the minimal pre-atmospheric mass and…

Origin of Enstatite Chondrite Fragments in Almahata Sitta: Implications for the Enstatite Chondrite Parent Body

02/07/2021 18:21 · by karmaka · in Almahata Sitta, enstatite chondrite, witnessed fall

Downes H., Goodrich C. A., Greenwood R. C., Abernethy F. J. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6089) PDF Almahata Sitta contains as wide a range of enstatite chondrite fragments as…

Arpu Kuilpu, an Ordinary Chondrite on a Jupiter Family Cometary Orbit

02/07/2021 18:18 · by karmaka · in Arpu Kuilpu, H, meteorite search & recovery, ordinary chondrite, witnessed fall

Towner M. C., Sansom E. K., Devillepoix H. A. R., Cupak M., Bland P. A., Anderson S. L., Shober P. M. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6206) PDF We describe…

Statistical Chronometry: Anchors Away!

02/07/2021 18:11 · by karmaka · in angrite, CAI, early chronology, formation age, radiometric dating, solar system

Desch S. J., Dunlap D. R., Williams C. D., Torrano Z. A. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6231) PDF We fit 4 parameters (CAI Pb-Pb ages; solar system initial 53Mn/55Mn,…

O-Isotope Signatures of Olivine and Pyroxene Grains in C1 and CM-Like Clasts

02/07/2021 18:06 · by karmaka · in carbonaceous chondrite, CI, clast, CM, oxygen isotopes

Patzek M., Bischoff A., Ludwig T., Whitehouse M., Trieloff M., Visser R., John T. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6096) PDF The olivine and pyroxene grains in C1 clasts seem…

Microscale H, C, and N Isotopic Distributions in Three Pristine CM Chondrites

02/07/2021 18:04 · by karmaka · in carbonaceous chondrite, CM

Nittler L. R., Alexander C. M. O’D., Verdier-Paoletti M. J. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6063) PDF In 3 CM rocks / H, C, and N isotopes / Huge diversity.

Revising the Angrite Fractionation Line: New Insights from High-Precision Oxygen Isotope Studies

02/07/2021 17:59 · by karmaka · in angrite, oxygen isotopes

Rider-Stokes B. G., Greenwood R. C., Anand M., Franchi I. A., White L. F. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6071) PDF Here we present new oxygen isotope data for angrite…

CAIs in Ordinary and Enstatite Chondrites

02/07/2021 17:46 · by karmaka · in CAI, enstatite chondrite, ordinary chondrite

Dunham E. T. *, Liu M.-C., Matsuda N., McKeegan K. D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6133) PDF NC CAIs / Very small and rare, unlike / CC CAIs.

The Conspicuous Compound Chondrule-CAI Conundrum: A Case Study Within the Brecciated CM2.2 Lithology of the Carbonaceous Breccia Aguas Zarcas

02/07/2021 17:44 · by karmaka · in CAI, carbonaceous chondrite, chondrule, chondrule formation, CM, early chronology, refractory inclusions

Martin P. M. C., Lee M. R. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6190) PDF Discovery of a new Compound Chondrule-CAI (CCCAI) within the brecciated CM2.2 lithology of the carbonaceous breccia…

Thermal History and Structure of the Tafassite Parent Body

02/07/2021 17:38 · by karmaka · in achondrite classification, carbonaceous chondrite, CR, parent body, primitive achondrite, ungrouped

Neumann W. *, Ma N., Neri A., Schwarz W. H., Ludwig T., Trieloff M., Klahr H., Bouvier A. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6153) PDF We identified a first group…

A Temporal Shift of Chondrule Generation from the Inner to Outer Solar System

02/07/2021 17:29 · by karmaka · in carbonaceous chondrite, chondrule, chondrule formation, CM, CO, early chronology, solar system

84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6030) PDF The Al-Mg ages of chondrules from pristine CM and CO chondrites are systematically younger than those of the majority of ordinary chondrite chondrules,…

Timing and Environment of Chondrule Formation

02/07/2021 17:26 · by karmaka · in chondrule, chondrule formation

Kadlag Y. *, Leya I., Mezger K., Bouvier A.-S., Haberthür D., Hlushchuk R. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6060) PDF Combining temporal information (from Al-Mg relative ages) with environment (from…

The Non-Complementary Compositions of Chondrules and Matrices in CO, CM and CR Chondrites

02/07/2021 17:13 · by karmaka · in carbonaceous chondrite, chondrule, CM, CO, CR, matrix

Patzer A., Bullock E. S., Alexander C. M. O’D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6025) PDF Our results are inconsistent with chondrule-matrix complementarity but in line with the four-component model…

Investigating the Origin of Oxygen Isotopic Variations in Meteorites

02/07/2021 17:07 · by karmaka · in AOA, CAI, oxygen isotopes, refractory inclusions

Burbine T. H., Greenwood R. C. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6210) PDF We are currently undertaking modeling to investigate how the oxygen isotopic variations seen in meteorites can be…

Oxygen Isotope Reservoirs in the Solar Nebula

02/07/2021 17:04 · by karmaka · in CAI, chondrite components, early chronology, oxygen isotopes, solar system

Desch S. J., Mane P., Dunham E. T., Williams C. D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6244) PDF Our astrophysical model combining magnetic forces on dust during star formation and…

A Xenolith from an Early Formed Parent Body in the CM Carbonaceous Chondrite LaPaz Icefield 02239

02/07/2021 16:59 · by karmaka · in carbonaceous chondrite, clast, CM, early chronology, solar system

Lee M. R., Martin P. M. C., Floyd C. J., Jenkins L. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6176) PDF Why do so few xenoliths in CM carbonaceous chondrites have a…

Geochemical Characterization of Mukundpura Carbonaceous Chondrite (CM2): Insights into Planetary Processes

02/07/2021 16:56 · by karmaka · in carbonaceous chondrite, CM

Dutta A., Raychaudhuri D., Mishra M., Ram R., Bhattacharya A. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6106) PDF Partitioning of different trace elements and REEs among the various silicate phases, in…

Ungrouped Chondrite Chug-Chug 086

01/07/2021 20:41 · by karmaka · in chondrite classification, F chondrite, H, ungrouped

Ivanova M. A., Zinovieva N. G., Franchi I. A., Lorenz C. A., Teplyakova S. N. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6108) PDF A new ungrouped chondrite Chug-Chug 086 has affinities…

Mean Atomic Weight, Grain Density, and Porosity of Flensburg Unique Carbonaceous Condrite

01/07/2021 20:33 · by karmaka · in carbonaceous chondrite, Flensburg, ungrouped, witnessed fall

Szurgot M. A. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6006) PDF Mean atomic weight (Amean), grain density (dgr) and porosity of Flensburg unique carbonaceous chondrite were determined. It was shown that…

Detection of Incipient Aqueous Alteration in Carbonaceous Chondrites

01/07/2021 20:18 · by karmaka · in aqueous alteration, carbonaceous chondrite, thermal metamorphism, ungrouped

Krämer Ruggiu L., Devouard B., Gattacceca J., Bonal L., Leroux H., Eschrig J., Borschneck D., King A., Beck P., Marrocchi Y., Debaille V., Hanna R. D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract…

Magnetite-Rich C2-ung Chondrites and Their Asteroidal Parent Bodies

01/07/2021 20:14 · by karmaka · in carbonaceous chondrite, parent body, ungrouped

Hewins R. H., Zanetta P.-M., Zanda B., Le Guiillou C., Leroux H., Brunetto R., Maupin R., Djouadi Z., Gattacceca J., Sognzoni C., Pont S., Piani L., Rigaudier T., Bernard S., Deldicque D., Malarewicz V., Dionnet…

Initial Descriptions of Asteroid Ryugu Samples Returned by Hayabusa2

01/07/2021 19:29 · by karmaka · in Hayabusa-2 / 162173 Ryugu, space missions

Yada T., Abe M., Nakato A., Yogata K., Miyazaki A., Kumagai K., Hatakeda K., Okada T., Nishimura M., Furuya S., Yoshitake M., Iwamae A., Soejima H., Hitomi Y., Riu L., Lourit L., Pilorget C., Hamm…

Discovery of High-Pressure Polymorphs in the Recent Fall of Viñales (L6 Ordinary Chondrite): Implications for Collisions on its Parent Body

01/07/2021 19:19 · by karmaka · in L, ordinary chondrite, Viñales, witnessed fall

Baziotis I., Xydous S., Papoutsa A., Hu J., Ma C., Ferrière L., Klemme S., Berndt J., Asimow P. D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6115) PDF Viñales, a L6 ordinary…

Raman Spectroscopy of Freshy Fallen Mahadeva (H5/6) Chondrite

01/07/2021 19:16 · by karmaka · in H, Mahadeva, ordinary chondrite, witnessed fall

Panda D. K., Shukla A. D. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6156) PDF Study of a new chondrite meteorites always shades some insights on the understanding of the records of…

Madura Cave: A New Meteorite Fall Delivered from an Aten Orbit

01/07/2021 19:13 · by karmaka · in L, Madura Cave, ordinary chondrite, witnessed fall

Devillepoix H. A. R., Anderson S., Sansom E. K., Lagain A., Towner M. C., Bland P. A., Howie R. M., Cupak M., Benedix G. K., Forman L. V., Shober P., Hartig B. A. D. 84th…

Mean Atomic Weight, Grain Density, and Porosity of Cavezzo Chondrite

01/07/2021 19:10 · by karmaka · in Cavezzo, L, ordinary chondrite, witnessed fall

Szurgot M. A. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6009) PDF Mean atomic weight (Amean), grain density (dgr), and porosity (P) of anomaleous Cavezzo L5 chondrite were predicted. It was shown…

Reanalysis of the 24 November 1970 Fireball

01/07/2021 19:07 · by karmaka · in LL, meteor/meteoroid/bolide, ordinary chondrite, witnessed fall

Gritsevich M., Moilanen J., Visuri J., Heinlein D., Schweidler F., Flohrer J., Oberst J. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6216) PDF We demonstrate that the EN241170 fireball was the fall…

Newly Recognized Classes of Type 3 Carbonaceous Chondrites with Extreme Oxygen Isotopic Compositions Beyond the CCAM Trend

01/07/2021 19:04 · by karmaka · in carbonaceous chondrite, oxygen isotopes, parent body, ungrouped

Irving A. J., Garvie L. A. J., Carpenter P. K., Ziegler K. 84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6218) PDF Three new types of ungrouped carbonaceous chondrite from Northwest Africa have…

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