Chondrulelike objects in short-period comet 81P/Wild 2

被引：227

作者：

Nakamura, Tomoki ^{[1
]}

Noguchi, Takaaki ^{[2
]}

Tsuchiyama, Akira ^{[3
]}

Ushikubo, Takayuki ^{[4
]}

Kita, Noriko T. ^{[4
]}

Valley, John W. ^{[4
]}

Zolensky, Michael E. ^{[5
]}

Kakazu, Yuki ^{[1
]}

Sakamoto, Kanako ^{[1
]}

Mashio, Etsuko ^{[3
]}

Uesugi, Kentaro ^{[6
]}

Nakano, Tsukasa ^{[7
]}

机构：

[1] Kyushu Univ, Fac Sci, Dept Earth & Planetary Sci, Fukuoka 8128581, Japan

[2] Ibaraki Univ, Coll Sci, Bunkyo Ku, Mito, Ibaraki 3108512, Japan

[3] Osaka Univ, Dept Earth & Space Sci, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

[4] Univ Wisconsin, Dept Geol & Geophys, Madison, WI 53706 USA

[5] NASA, Lyndon B Johnson Space Ctr, Astromat Res & Explorat Sci, Houston, TX 77058 USA

[6] Japan Synchrotron Radiat Res Inst, SPring 8, Sayo, Hyogo 6795198, Japan

[7] Natl Inst Adv Ind Sci & Technol, Geol Survey Japan, Tsukuba, Ibaraki 3058567, Japan

来源：

SCIENCE | 2008年 / 321卷 / 5896期

基金：

日本学术振兴会;

关键词：

D O I：

10.1126/science.1160995

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The Stardust spacecraft returned cometary samples that contain crystalline material, but the origin of the material is not yet well understood. We found four crystalline particles from comet 81P/ Wild 2 that were apparently formed by flash- melting at a high temperature and are texturally, mineralogically, and compositionally similar to chondrules. Chondrules are submillimeter particles that dominate chondrites and are believed to have formed in the inner solar nebula. The comet particles show oxygen isotope compositions similar to chondrules in carbonaceous chondrites that compose the middle- to- outer asteroid belt. The presence of the chondrulelike objects in the comet suggests that chondrules have been transported out to the cold outer solar nebula and spread widely over the early solar system.

引用

页码：1664 / 1667

页数：4

共 30 条

[1] Oxygen isotope heterogeneities in the earliest protosolar gas recorded in a meteoritic calcium-aluminum-rich inclusion
Aleon, Jerome
El Goresy, Ahmed
Zinner, Ernst
[J]. EARTH AND PLANETARY SCIENCE LETTERS, 2007, 263 (1-2) : 114 - 127
[2] Lead isotopic ages of chondrules and calcium-aluminum-rich inclusions
Amelin, Y
Krot, AN
Hutcheon, ID
Ulyanov, AA
[J]. SCIENCE, 2002, 297 (5587) : 1678 - 1683
[3] Brearley A. J., 1998, Planetary Materials, P1
[4] Comet 81P/Wild 2 under a microscope
Brownlee, Don
Tsou, Peter
Aleon, Jerome
Alexander, Conel M. O'D.
Araki, Tohru
Bajt, Sasa
Baratta, Giuseppe A.
Bastien, Ron
Bland, Phil
Bleuet, Pierre
Borg, Janet
Bradley, John P.
Brearley, Adrian
Brenker, F.
Brennan, Sean
Bridges, John C.
Browning, Nigel D.
Brucato, John R.
Bullock, E.
Burchell, Mark J.
Busemann, Henner
Butterworth, Anna
Chaussidon, Marc
Cheuvront, Allan
Chi, Miaofang
Cintala, Mark J.
Clark, B. C.
Clemett, Simon J.
Cody, George
Colangeli, Luigi
Cooper, George
Cordier, Patrick
Daghlian, C.
Dai, Zurong
D'Hendecourt, Louis
Djouadi, Zahia
Dominguez, Gerardo
Duxbury, Tom
Dworkin, Jason P.
Ebel, Denton S.
Economou, Thanasis E.
Fakra, Sirine
Fairey, Sam A. J.
Fallon, Stewart
Ferrini, Gianluca
Ferroir, T.
Fleckenstein, Holger
Floss, Christine
Flynn, George
Franchi, Ian A.
[J]. SCIENCE, 2006, 314 (5806) : 1711 - 1716
[5] Mineralogy and petrology of amoeboid olivine inclusions in CO3 chondrites: Relationship to parent-body aqueous alteration
Chizmadia, LJ
Rubin, AE
Wasson, JT
[J]. METEORITICS & PLANETARY SCIENCE, 2002, 37 (12) : 1781 - 1796
[6] Outward transport of high-temperature materials around the midplane of the solar nebula
Ciesla, Fred J.
[J]. SCIENCE, 2007, 318 (5850) : 613 - 615
[7] Clayton R. N., 1985, LUNAR PLANET SCI, VXVI, P142
[8] OXYGEN ISOTOPE STUDIES OF ORDINARY CHONDRITES
CLAYTON, RN
MAYEDA, TK
GOSWAMI, JN
OLSEN, EJ
[J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 1991, 55 (08) : 2317 - 2337
[9] CLAYTON RN, 1993, ANNU REV EARTH PL SC, V21, P115, DOI 10.1146/annurev.ea.21.050193.000555
[10] Fe-Mg diffusion in olivine II: point defect chemistry, change of diffusion mechanisms and a model for calculation of diffusion coefficients in natural olivine
Dohmen, Ralf
Chakraborty, Sumit
[J]. PHYSICS AND CHEMISTRY OF MINERALS, 2007, 34 (06) : 409 - 430

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