parent body

Iron Meteorites: Composition, Age, and OriginOPEN ACCESS

29/09/2020 15:02 · by karmaka · in iron, iron classification, parent body

Edward R. D. Scott LINK (OPEN ACCESS)PDF (DOWNLOAD) “Iron meteorites are thought to be samples of metallic cores and pools that formed in diverse small planetary bodies. Their great diversity offers remarkable insights into the…

Heavy iron isotope composition of iron meteorites explained by core crystallization

04/08/2020 01:08 · by karmaka · in IIIAB, iron, parent body

Peng Ni, Nancy L. Chabot, Caillin J. Ryan & Anat Shahar Nature Geoscience , 1–5Published: 03 August 2020 LINK “Similar to Earth, many large planetesimals in the Solar System experienced planetary-scale processes such as accretion,…

Early accretion of planetesimals unraveled by the thermal evolution of the parent bodies of magmatic iron meteorites

31/07/2020 23:44 · by karmaka · in accretion, asteroid, early chronology, iron, parent body, planets, solar system

Edouard Kaminski, Angela Limare, Balthasar Kenda, Marc Chaussidon Earth and Planetary Science LettersVolume 548, 15 October 2020, 116469 LINK “Highlights • Hf/W ages of magmatic iron meteorites define a common thermal evolution.• We propose a…

Meteorite evidence for partial differentiation and protracted accretion of planetesimalsOPEN ACCESS

24/07/2020 20:12 · by karmaka · in accretion, achondrite classification, asteroid, chondrite classification, differentiation, early chronology, IIE, iron, parent body, parent body, solar system

Clara Maurel, James F. J. Bryson, Richard J. Lyons, Matthew R. Ball, Rajesh V. Chopdekar, Andreas Scholl, Fred J. Ciesla, William F. Bottke, Benjamin P. Weiss Science Advances 24 Jul 2020:Vol. 6, no. 30, eaba1303DOI:…

Closure temperature of the Pd-Ag system and the crystallization and cooling history of IIIAB iron meteorites

15/07/2020 22:56 · by karmaka · in early chronology, IIIAB, iron, parent body, solar system

M. Matthes, J.A. van Orman, T. Kleine Geochimica et Cosmochimica ActaAvailable online 14 July 2020 LINK “To better constrain the crystallization and cooling history of the IIIAB iron meteorite parent body, we report new 107Pd-107Ag…

New implications for the origin of the IAB main group iron meteorites and the isotopic evolution of the noncarbonaceous (NC) reservoir

22/04/2020 18:10 · by karmaka · in IAB, iron, parent body

Connor D.Hilton, Richard J.Walker Earth and Planetary Science LettersVolume 540, 15 June 2020, 116248 LINK “Highlights • The IAB-MG iron meteorites have a μ182W value of −295 ± 3.• The IAB-MG are constrained to have…

Pb isotope evidence for rapid accretion and differentiation of planetary embryosOPEN ACCESS

13/08/2019 23:23 · by karmaka · in chondrule formation, early chronology, formation age, iron, IVA, parent body, radiometric dating, solar system

J.N. Connelly, M. Schiller, M. Bizzarro Earth and Planetary Science Letters Volume 525, 1 November 2019, 115722 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Highlights • We report a Pb-Pb age of 4565.47 ± 0.30 Ma…

Age and origin of IIE iron meteorites inferred from Hf-W chronology

29/07/2019 13:13 · by karmaka · in IIE, iron, parent body

Thomas S. Kruijer, Thorsten Kleine Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 29 July 2019 LINK “Non-magmatic iron meteorites, including the IIE group, can provide important insights into the history of metal-silicate…

Constraints on asteroid magnetic field evolution and the radii of meteorite parent bodies from thermal modelling

18/06/2019 19:36 · by karmaka · in accretion, angrite, asteroid, CV, IIE, iron, L, LL, ordinary chondrite, paleomagnetism, parent body, parent body

James F. J. Bryson, Jerome A. Neufeld, Francis Nimmo Earth and Planetary Science Letters Volume 521, 1 September 2019, Pages 68-78 LINK “Highlights • We predict the timing of asteroid magnetic field generation using thermal…

The effects of impacts on the cooling rates of iron meteorites

15/05/2019 13:25 · by karmaka · in iron, parent body

Richard J. Lyons, Timothy J. Bowling, Fred J. Ciesla, Thomas M. Davison, Gareth S. Collins Meteoritics & Planetary Science First Published: 14 May 2019 LINK “Iron meteorites provide a record of the thermal evolution of…

Genetics, crystallization sequence, and age of the South Byron Trio iron meteorites: New insights to carbonaceous chondrite (CC) type parent bodies

27/02/2019 21:05 · by karmaka · in carbonaceous chondrite, iron, pallasite, parent body, parent body, ungrouped

Connor D. Hilton, Katherine R. Bermingham, Richard J. Walker, Timothy J. McCoy Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 27 February 2019 LINK “The nucleosynthetic Mo, Ru, and W isotopic compositions of…

Origin of the non-carbonaceous–carbonaceous meteorite dichotomyOPEN ACCESS

03/02/2019 11:36 · by karmaka · in CAI, carbonaceous chondrite, early chronology, IC, IID, IIF, IIIE, IIIF, iron, IVA, ordinary chondrite, parent body, refractory inclusions, solar system

Josefine A. M. Nanne, Francis Nimmo, Jeffrey N.Cuzzi, Thorsten Kleine Earth and Planetary Science Letters Volume 511, 1 April 2019, Pages 44-54 LINK (OPEN ACCESS) “Highlights • New Ni isotopic data for iron meteorites confirm…

Meteorite cloudy zone formation as a quantitative indicator of paleomagnetic field intensities and cooling rates on planetesimalsOPEN ACCESS

01/02/2019 08:45 · by karmaka · in iron, IVA, main group, paleomagnetism, pallasite, parent body, parent body, stony-irons

Clara Maurel, Benjamin P. Weiss, James F. J. Bryson PDF (OPEN ACCESS) “Metallic microstructures in slowly-cooled iron-rich meteorites reflect the thermal and magnetic histories of their parent planetesimals. Of particular interest is the cloudy zone,…

Iron Isotope Constraints on Planetesimal Core Formation in the Early Solar System

13/12/2018 18:29 · by karmaka · in achondrite, aubrite, IIIAB, iron, parent body

Michelle K. Jordan, HaoLan Tang, Issaku E. Kohl, Edward D. Young Geochimica et Cosmochimica Acta LINK “We determined the Fe isotope fractionation between the metal and silicate phases of two aubrite meteorites, Norton County and…

Cation distribution in orthopyroxenes from São João Nepomuceno iron meteorite inferred from 57Fe Mössbauer spectroscopy: Implications for thermal history and origin of IVA parent body

11/06/2018 15:39 · by karmaka · in iron, IVA, parent body

Edivaldo Dos Santos, Rosa B. Scorzelli, Maria E. Varela Meteorit Planet Sci. . doi:10.1111/maps.13121 LINK “São João Nepomuceno (SJN) is an IVA iron meteorite, found in Minas Gerais state (Brazil) in 1960, that consists of…

Oxidized conditions in iron meteorite parent bodies

08/05/2018 00:41 · by karmaka · in iron, parent body

P. Bonnand & A. N. Halliday Nature Geoscience (2018) doi:10.1038/s41561-018-0128-2 Published: 07 May 2018 LINK “Magmatic iron meteorites are thought to originate from the cores of differentiated planetary embryos, but it is unclear where they…

Microstructural and Paleomagnetic Insight into the Cooling History of the IAB Parent Body

15/03/2018 08:42 · by karmaka · in IAB, iron, paleomagnetism, parent body

Claire I.O. Nichols, Robert Krakow, Julia Herrero-Albillos, Florian Kronast, Geraint Northwood-Smitha, Richard J. Harrisona Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 15 March 2018 LINK “The IABs represent one of only two…

Multi‐stage core formation in planetesimals revealed by numerical modeling and Hf‐W chronometry of iron meteorites

16/01/2018 23:31 · by karmaka · in iron, IVB, parent body

W. Neumann, T. S. Kruijer, D. Breuer, T. Kleine J. Geophys. Res., 123, doi:10.1002/2017JE005411 LINK “Iron meteorites provide some of the most direct insights into the processes and timescales of core formation in planetesimals. Of…

Late metal–silicate separation on the IAB parent asteroid: Constraints from combined W and Pt isotopes and thermal modellingOPEN ACCESS

28/11/2017 00:20 · by karmaka · in accretion, asteroid, IAB, iron, parent body

Alison C. Hunt, David L. Cook, Tim Lichtenberg, Philip M. Reger, Mattias Ek, Gregor J. Golabek, Maria Schönbächler Earth and Planetary Science Letters Volume 482, 15 January 2018, Pages 490–500 LINK (OPEN ACCESS) PDF (OPEN…

Thermal equilibration of iron meteorite and pallasite parent bodies recorded at the mineral scale by Fe and Ni isotope systematics

19/08/2017 09:21 · by karmaka · in IAB, iron, main group, pallasite, parent body

Stepan M. Chernonozhkin, Mona Weyrauch, Steven Goderis, Martin Oeser, Seann J. McKibbin, Ingo Horn, Lutz Hecht, Stefan Weyer, Philippe Claeys, Frank Vanhaecke Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 19 August 2017…

Tungsten Isotope Dichotomy Among Iron Meteorite Parent Bodies: Implications for the Timescales of Accretion and Core Formation

16/06/2016 13:44 · by karmaka · in accretion, asteroid, early chronology, iron, parent body

Kruijer T. S. * Kleine T. 79th Annual Meeting of the Meteoritical Society (2016) #6449 LINK

Formation of the Treysa quintet and the main-group pallasites by impact-generated processes in the IIIAB asteroid.

23/03/2016 09:38 · by karmaka · in IIIAB, iron, main group, pallasite, parent body, parent body

Wasson, J. T. Meteoritics & Planetary Science. doi: 10.1111/maps.12635 LINK “Treysa and Delegate have compositions closely similar to those of IIIAB irons but plot above the IIIAB field on Ir-Au diagrams; for this reason they…

A Core Dynamo on an Iron Meteorite Parent Body and the Magnetism of Metallic Asteroids

07/02/2016 01:20 · by karmaka · in asteroid, iron, IVA, paleomagnetism, parent body

B. P. Weiss, J. F. J. Bryson, R. J. Harrison, J. A. Neufeld, L. T. Elkins-Tanton, C. T. Russell, C. A. Raymond, F. Nimmo, J. Herrero-Albillos, F. Kronast 47th Lunar and Planetary Science Conference (2016),…

Oxygen isotope and petrological study of silicate inclusions in IIE iron meteorites and their relationship with H chondrites

28/10/2015 10:20 · by karmaka · in H, IIE, iron, ordinary chondrite, oxygen isotopes, parent body

Kathryn H. McDermott, Richard C. Greenwood, Edward R.D. Scott, Ian A. Franchi, Mahesh Anand Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 28 October 2015 doi:10.1016/j.gca.2015.10.014 LINK “The origin of silicate-bearing irons, especially…