A unique glimpse into asteroidal melting processes in the early solar system from the Graves Nunatak 06128/06129 achondrites

C. K. Shearer; P. V. Burger; C. R. Neal; Z. Sharp; L. E. Borg; L. Spivak-Birndorf; M. Wadhwa; J. J. Papike; J. M. Karner; A. M. Gaffney; J. Shafer; B. P. Weiss; J. Geissman; V. A. Fernandes

doi:10.2138/am.2008.3056

A unique glimpse into asteroidal melting processes in the early solar system from the Graves Nunatak 06128/06129 achondrites

C. K. Shearer^*, P. V. Burger, C. R. Neal, Z. Sharp, L. E. Borg, L. Spivak-Birndorf, M. Wadhwa, J. J. Papike, J. M. Karner, A. M. Gaffney, J. Shafer, B. P. Weiss, J. Geissman, V. A. Fernandes

^*Corresponding author for this work

Research output: Contribution to journal › Letter › peer-review

Abstract

The recently recovered Antarctic achondrites Graves Nunatak 06128 and 06129 are unique meteorites that represent high-temperature asteroidal processes in the early solar system never before identified in any other meteorite. They represent products of early planetesimal melting (4564.25 ± 0.21 Ma) and subsequent metamorphism of an unsampled geochemical reservoir from an asteroid that has characteristics similar to the brachinite parent body. This melting event is unlike those predicted by previous experimental or geochemical studies, and indicates either disequilibrium melting of chondritic material or melting of chondritic material under volatile-rich conditions.

Original language	English
Pages (from-to)	1937-1940
Number of pages	4
Journal	American Mineralogist
Volume	93
Issue number	11-12
DOIs	https://doi.org/10.2138/am.2008.3056
Publication status	Published - 1 Nov 2008

Keywords

Achondrites
Al-Mg chronometer
Asteroids
Brachinites
Planetesimal melting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2138/am.2008.3056

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Shearer, C. K., Burger, P. V., Neal, C. R., Sharp, Z., Borg, L. E., Spivak-Birndorf, L., Wadhwa, M., Papike, J. J., Karner, J. M., Gaffney, A. M., Shafer, J., Weiss, B. P., Geissman, J., & Fernandes, V. A. (2008). A unique glimpse into asteroidal melting processes in the early solar system from the Graves Nunatak 06128/06129 achondrites. American Mineralogist, 93(11-12), 1937-1940. https://doi.org/10.2138/am.2008.3056

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title = "A unique glimpse into asteroidal melting processes in the early solar system from the Graves Nunatak 06128/06129 achondrites",

abstract = "The recently recovered Antarctic achondrites Graves Nunatak 06128 and 06129 are unique meteorites that represent high-temperature asteroidal processes in the early solar system never before identified in any other meteorite. They represent products of early planetesimal melting (4564.25 ± 0.21 Ma) and subsequent metamorphism of an unsampled geochemical reservoir from an asteroid that has characteristics similar to the brachinite parent body. This melting event is unlike those predicted by previous experimental or geochemical studies, and indicates either disequilibrium melting of chondritic material or melting of chondritic material under volatile-rich conditions.",

keywords = "Achondrites, Al-Mg chronometer, Asteroids, Brachinites, Planetesimal melting",

author = "Shearer, {C. K.} and Burger, {P. V.} and Neal, {C. R.} and Z. Sharp and Borg, {L. E.} and L. Spivak-Birndorf and M. Wadhwa and Papike, {J. J.} and Karner, {J. M.} and Gaffney, {A. M.} and J. Shafer and Weiss, {B. P.} and J. Geissman and Fernandes, {V. A.}",

year = "2008",

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doi = "10.2138/am.2008.3056",

language = "English",

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Shearer, CK, Burger, PV, Neal, CR, Sharp, Z, Borg, LE, Spivak-Birndorf, L, Wadhwa, M, Papike, JJ, Karner, JM, Gaffney, AM, Shafer, J, Weiss, BP, Geissman, J & Fernandes, VA 2008, 'A unique glimpse into asteroidal melting processes in the early solar system from the Graves Nunatak 06128/06129 achondrites', American Mineralogist, vol. 93, no. 11-12, pp. 1937-1940. https://doi.org/10.2138/am.2008.3056

TY - JOUR

T1 - A unique glimpse into asteroidal melting processes in the early solar system from the Graves Nunatak 06128/06129 achondrites

AU - Shearer, C. K.

AU - Burger, P. V.

AU - Neal, C. R.

AU - Sharp, Z.

AU - Borg, L. E.

AU - Spivak-Birndorf, L.

AU - Wadhwa, M.

AU - Papike, J. J.

AU - Karner, J. M.

AU - Gaffney, A. M.

AU - Shafer, J.

AU - Weiss, B. P.

AU - Geissman, J.

AU - Fernandes, V. A.

PY - 2008/11/1

Y1 - 2008/11/1

N2 - The recently recovered Antarctic achondrites Graves Nunatak 06128 and 06129 are unique meteorites that represent high-temperature asteroidal processes in the early solar system never before identified in any other meteorite. They represent products of early planetesimal melting (4564.25 ± 0.21 Ma) and subsequent metamorphism of an unsampled geochemical reservoir from an asteroid that has characteristics similar to the brachinite parent body. This melting event is unlike those predicted by previous experimental or geochemical studies, and indicates either disequilibrium melting of chondritic material or melting of chondritic material under volatile-rich conditions.

AB - The recently recovered Antarctic achondrites Graves Nunatak 06128 and 06129 are unique meteorites that represent high-temperature asteroidal processes in the early solar system never before identified in any other meteorite. They represent products of early planetesimal melting (4564.25 ± 0.21 Ma) and subsequent metamorphism of an unsampled geochemical reservoir from an asteroid that has characteristics similar to the brachinite parent body. This melting event is unlike those predicted by previous experimental or geochemical studies, and indicates either disequilibrium melting of chondritic material or melting of chondritic material under volatile-rich conditions.

KW - Achondrites

KW - Al-Mg chronometer

KW - Asteroids

KW - Brachinites

KW - Planetesimal melting

UR - http://www.scopus.com/inward/record.url?scp=58049102817&partnerID=8YFLogxK

U2 - 10.2138/am.2008.3056

DO - 10.2138/am.2008.3056

M3 - Letter

AN - SCOPUS:58049102817

SN - 0003-004X

VL - 93

SP - 1937

EP - 1940

JO - American Mineralogist

JF - American Mineralogist

IS - 11-12

ER -

A unique glimpse into asteroidal melting processes in the early solar system from the Graves Nunatak 06128/06129 achondrites

Abstract

Keywords

UN SDGs

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