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Carbonaceous chondrite meteorites as a record of protoplanetary disk conditions

Published online by Cambridge University Press:  12 October 2020

Sara S. Russell
Affiliation:
Planetary Materials Group, Department of Earth Sciences, Natural History Museum Cromwell Road, London, SW7 5BD, UK email: [email protected]
Enrica Bonato
Affiliation:
Planetary Materials Group, Department of Earth Sciences, Natural History Museum Cromwell Road, London, SW7 5BD, UK email: [email protected]
Helena Bates
Affiliation:
Planetary Materials Group, Department of Earth Sciences, Natural History Museum Cromwell Road, London, SW7 5BD, UK email: [email protected]
Ashley J. King
Affiliation:
Planetary Materials Group, Department of Earth Sciences, Natural History Museum Cromwell Road, London, SW7 5BD, UK email: [email protected]
Natasha V. Almeida
Affiliation:
Planetary Materials Group, Department of Earth Sciences, Natural History Museum Cromwell Road, London, SW7 5BD, UK email: [email protected]
Paul F. Schofield
Affiliation:
Planetary Materials Group, Department of Earth Sciences, Natural History Museum Cromwell Road, London, SW7 5BD, UK email: [email protected]
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Abstract

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Chondritic meteorites, and especially the most volatile-rich chondrites, the carbonaceous chondrites, preserve a record of the solar protoplanetary disk dust component and how it has been changed both in the disk environment itself and in its asteroidal parent body. Here we review some of the key features of carbonaceous chondrites and report some new data on their organics component. These show that the nebula reached temperature of >10000C, but only very locally, to produce chondrules. Most meteoritic material underwent thermal and/or aqueous processing, but some retain delicate nebular components such as complex organic molecules and amorphous silicates.

Type
Contributed Papers
Copyright
© International Astronomical Union 2020

References

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