Impact history of the HED parent body(ies) clarified by new 40Ar/39Ar analyses of four HED meteorites and one anomalous basaltic achondrite

2013 ◽  
Vol 115 ◽  
pp. 162-182 ◽  
Author(s):  
Trudi Kennedy ◽  
Fred Jourdan ◽  
Alex W.R. Bevan ◽  
M.A. Mary Gee ◽  
Adam Frew
Keyword(s):  
Parent Body ◽  
History Of ◽  
Basaltic Achondrite

scholarly journals Microstructural and paleomagnetic insight into the cooling history of the IAB parent body

2018 ◽  
Vol 229 ◽  
pp. 1-19 ◽  
Author(s):  
Claire I.O. Nichols ◽  
Robert Krakow ◽  
Julia Herrero-Albillos ◽  
Florian Kronast ◽  
Geraint Northwood-Smith ◽  
...  
Keyword(s):  
Parent Body ◽  
Cooling History ◽  
History Of ◽  
Insight Into

scholarly journals Hf–W thermochronometry: Closure temperature and constraints on the accretion and cooling history of the H chondrite parent body

2008 ◽  
Vol 270 (1-2) ◽  
pp. 106-118 ◽  
Author(s):  
Thorsten Kleine ◽  
Mathieu Touboul ◽  
James A. Van Orman ◽  
Bernard Bourdon ◽  
Colin Maden ◽  
...  
Keyword(s):  
Parent Body ◽  
Closure Temperature ◽  
Cooling History ◽  
History Of

Constitution of terrestrial planets

1981 ◽  
Vol 303 (1477) ◽  
pp. 287-302 ◽  
Keyword(s):  
Bulk Composition ◽  
Parent Body ◽  
The Moon ◽  
Volatile Elements ◽  
Earth’S Mantle ◽  
The Earth ◽  
History Of ◽  
Relationship Of ◽  
Reduced State

Reliable estimates of the bulk composition are so far restricted to the three planetary objects from which we have samples for laboratory investigation, i.e. the Earth, the Moon and the eucrite parent asteroid. The last, the parent body of the eucrite— diogenite family of meteorites, an object that like Earth and Moon underwent magmatic differentiations, seems to have an almost chondritic composition except for a considerable depletion of all moderately volatile (Na, K, Rb, F, etc.) and highly volatile (Cl, Br, Cd, Pb, etc.) elements. The Moon is also depleted in moderately volatile and volatile elements compared to carbonaceous chondrites of type 1 (Cl) and also compared to the Earth. Again normalized to Cl and Si the Earth’s mantle and the Moon are slightly enriched in refractory lithophile elements and in magnesium. It might be that this enrichment is fictitious and only due to the normalization to Si and that both Earth’s mantle and Moon are depleted in Si, which partly entered the Earth’s core in metallic form. The striking depletion of the Earth’s mantle for the elements V, Cr and Mn can also be explained by their partial removal into the core. The similar abundances of V, Cr and Mn in the Moon and in the Earth’s mantle indicate the strong genetic relationship of Earth and Moon. Apart from their contents of metallic iron, all siderophile elements, moderately volatile and volatile elements, Earth and Moon are chemically very similar. It might well be that, with these exceptions and that of a varying degree of oxidation, all the inner planets have a similar chemistry. The chemical composition of the Earth’s mantle, for which reliable and accurate data have recently been obtained from the study of ultramafic nodules, yields important information about the accretion history of the Earth and that of the inner planets. It seems that accretion started with highly reduced material, with all Fe as metal and even Si and Cr, V and Mn partly in reduced state, followed by the accretion of more and more oxidized matter.

Links between meteorites and asteroids

1981 ◽  
Vol 374 (1757) ◽  
pp. 271-279
Keyword(s):  
Physical Properties ◽  
Rapid Growth ◽  
Parent Body ◽  
The Past ◽  
History Of ◽  
The Way

During the past decade, there has been a rapid growth in studies of the physical properties of the asteroids. In consequence, there now exists a much better basis than there was hitherto for comparing the properties of meteorites, determined in the laboratory, with those of asteroids. The way in which recent measurements of asteroids and meteorites can be interrelated to determine the nature and history of a meteorite parent body is illustrated via a case study of the asteroid Vesta and the Ca-rich achondrite Kapoeta.

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