Large-scale melting and impact mixing on early-formed asteroids: evidence from high-precision oxygen isotope studies

Richard Greenwood; J.-A. Barrat; Edward Robert Dalton Scott; Ian A.  Franchi; Akira  Yamaguchi; J. M.  Gibson; Henning Haack; C. A.  Lorenz; Marina A.  Ivanova; Alex  Bevan

Large-scale melting and impact mixing on early-formed asteroids: evidence from high-precision oxygen isotope studies

Bidragets oversatte titel: Opsmeltning og Impact mixing af tidlige asteroider.

Richard Greenwood, J.-A. Barrat, Edward Robert Dalton Scott, Ian A. Franchi, Akira Yamaguchi, J. M. Gibson, Henning Haack, C. A. Lorenz, Marina A. Ivanova, Alex Bevan

Abstract

Large-scale melting of asteroids and planetesimals is now known to have taken place ex-tremely early in solar system history [1]. The first-generation bodies produced by this process would have been subject to rapid collisional reprocessing, leading in most cases to fragmentation and/or accretion into larger-sized bodies [2]. Achondritic meteorites provide a unique source of information about the nature of these early events. However, the fragmentary character of this record makes it difficult to interpret. High-precision oxygen isotope analysis has proved to be an important technique in understanding the relationship between the different groups of achondrites [3, 4].
Here we present new oxygen isotope evidence con-cerning the role of large-scale melting and subsequent impact mixing in the evolution of three important achondrite groups: the main-group pallasites, meso-siderites and HEDs.

Bidragets oversatte titel	Opsmeltning og Impact mixing af tidlige asteroider.
Originalsprog	Engelsk
Publikationsdato	15 mar. 2013
Antal sider	2
Status	Udgivet - 15 mar. 2013
Begivenhed	44th Lunar and Planetary Science Conference - Houston, USA Varighed: 18 mar. 2013 → 22 mar. 2013 Konferencens nummer: 44

Konference

Konference	44th Lunar and Planetary Science Conference
Nummer	44
Land/Område	USA
By	Houston
Periode	18/03/2013 → 22/03/2013

Adgang til dokumentet

http://www.lpi.usra.edu/meetings/lpsc2013/pdf/3048.pdf

Citationsformater

Greenwood, R., Barrat, J-A., Scott, E. R. D., Franchi, I. A., Yamaguchi, A., Gibson, J. M., Haack, H., Lorenz, C. A., Ivanova, M. A., & Bevan, A. (2013). Large-scale melting and impact mixing on early-formed asteroids: evidence from high-precision oxygen isotope studies. Afhandling præsenteret på 44th Lunar and Planetary Science Conference, Houston, USA. http://www.lpi.usra.edu/meetings/lpsc2013/pdf/3048.pdf

Large-scale melting and impact mixing on early-formed asteroids : evidence from high-precision oxygen isotope studies. / Greenwood, Richard; Barrat, J.-A.; Scott, Edward Robert Dalton; Franchi, Ian A. ; Yamaguchi, Akira ; Gibson, J. M. ; Haack, Henning; Lorenz, C. A. ; Ivanova, Marina A. ; Bevan, Alex .

2013. Afhandling præsenteret på 44th Lunar and Planetary Science Conference, Houston, USA.

Publikation: Konferencebidrag › Paper › Forskning

Greenwood, R, Barrat, J-A, Scott, ERD, Franchi, IA, Yamaguchi, A, Gibson, JM, Haack, H, Lorenz, CA, Ivanova, MA & Bevan, A 2013, 'Large-scale melting and impact mixing on early-formed asteroids: evidence from high-precision oxygen isotope studies', Paper fremlagt ved 44th Lunar and Planetary Science Conference, Houston, USA, 18/03/2013 - 22/03/2013. <http://www.lpi.usra.edu/meetings/lpsc2013/pdf/3048.pdf>

Greenwood, Richard ; Barrat, J.-A. ; Scott, Edward Robert Dalton ; Franchi, Ian A. ; Yamaguchi, Akira ; Gibson, J. M. ; Haack, Henning ; Lorenz, C. A. ; Ivanova, Marina A. ; Bevan, Alex . / Large-scale melting and impact mixing on early-formed asteroids : evidence from high-precision oxygen isotope studies. Afhandling præsenteret på 44th Lunar and Planetary Science Conference, Houston, USA.2 s.

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abstract = "Large-scale melting of asteroids and planetesimals is now known to have taken place ex-tremely early in solar system history [1]. The first-generation bodies produced by this process would have been subject to rapid collisional reprocessing, leading in most cases to fragmentation and/or accretion into larger-sized bodies [2]. Achondritic meteorites provide a unique source of information about the nature of these early events. However, the fragmentary character of this record makes it difficult to interpret. High-precision oxygen isotope analysis has proved to be an important technique in understanding the relationship between the different groups of achondrites [3, 4].Here we present new oxygen isotope evidence con-cerning the role of large-scale melting and subsequent impact mixing in the evolution of three important achondrite groups: the main-group pallasites, meso-siderites and HEDs.",

author = "Richard Greenwood and J.-A. Barrat and Scott, {Edward Robert Dalton} and Franchi, {Ian A.} and Akira Yamaguchi and Gibson, {J. M.} and Henning Haack and Lorenz, {C. A.} and Ivanova, {Marina A.} and Alex Bevan",

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T1 - Large-scale melting and impact mixing on early-formed asteroids

AU - Greenwood, Richard

AU - Barrat, J.-A.

AU - Scott, Edward Robert Dalton

AU - Franchi, Ian A.

AU - Yamaguchi, Akira

AU - Gibson, J. M.

AU - Haack, Henning

AU - Lorenz, C. A.

AU - Ivanova, Marina A.

AU - Bevan, Alex

N1 - Conference code: 44

PY - 2013/3/15

Y1 - 2013/3/15

N2 - Large-scale melting of asteroids and planetesimals is now known to have taken place ex-tremely early in solar system history [1]. The first-generation bodies produced by this process would have been subject to rapid collisional reprocessing, leading in most cases to fragmentation and/or accretion into larger-sized bodies [2]. Achondritic meteorites provide a unique source of information about the nature of these early events. However, the fragmentary character of this record makes it difficult to interpret. High-precision oxygen isotope analysis has proved to be an important technique in understanding the relationship between the different groups of achondrites [3, 4].Here we present new oxygen isotope evidence con-cerning the role of large-scale melting and subsequent impact mixing in the evolution of three important achondrite groups: the main-group pallasites, meso-siderites and HEDs.

AB - Large-scale melting of asteroids and planetesimals is now known to have taken place ex-tremely early in solar system history [1]. The first-generation bodies produced by this process would have been subject to rapid collisional reprocessing, leading in most cases to fragmentation and/or accretion into larger-sized bodies [2]. Achondritic meteorites provide a unique source of information about the nature of these early events. However, the fragmentary character of this record makes it difficult to interpret. High-precision oxygen isotope analysis has proved to be an important technique in understanding the relationship between the different groups of achondrites [3, 4].Here we present new oxygen isotope evidence con-cerning the role of large-scale melting and subsequent impact mixing in the evolution of three important achondrite groups: the main-group pallasites, meso-siderites and HEDs.

M3 - Paper

Y2 - 18 March 2013 through 22 March 2013

ER -