Iron oxides in comet 81P/Wild 2
Iron oxides in comet 81P/Wild 2
复制标题
彗星 81P/Wild 2 中的铁氧化物
DOI:
10.1111/j.1945-5100.2009.01005.x
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发表时间:
2010
影响因子:
2.2
通讯作者:
BRIDGES J
中科院分区:
文献类型:
--
作者:
BRIDGES J
We have used synchrotron Fe‐XANES, XRS, microRaman, and SEM‐TEM analyses of Stardust track 41 slice and track 121 terminal area slices to identify Fe oxide (magnetite‐hematite and amorphous oxide), Fe‐Ti oxide, and V‐rich chromite (Fe‐Cr‐V‐Ti‐Mn oxide) grains ranging in size from 200 nm to ∼10 μm. They co‐exist with relict FeNi metal. Both Fe‐XANES and microRaman analyses suggest that the FeNi metal and magnetite (Fe2O3FeO) also contain some hematite (Fe2O3). The FeNi has been partially oxidized (probably during capture), but on the basis of our experimental work with a light‐gas gun and microRaman analyses, we believe that some of the magnetite‐hematite mixtures may have originated on Wild 2. The terminal samples from track 121 also contain traces of sulfide and Mg‐rich silicate minerals. Our results show an unequilibrated mixture of reduced and oxidized Fe‐bearing minerals in the Wild 2 samples in an analogous way to mineral assemblages seen in carbonaceous chondrites and interplanetary dust particles. The samples contain some evidence for terrestrial contamination, for example, occasional Zn‐bearing grains and amorphous Fe oxide in track 121 for which evidence of a cometary origin is lacking.
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DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
Byeon‐Gak Choi;J. Wasson
通讯作者:
J. Wasson
影响因子:
56.9
作者:
G. Flynn;P. Bleuet;J. Borg;J. Bradley;F. Brenker;S. Brennan;J. Bridges;D. Brownlee;E. Bullock;M. Burghammer;B. Clark;Z. Dai;C. Daghlian;Z. Djouadi;S. Fakra;T. Ferroir;C. Floss;I. Franchi;Z. Gainsforth;J. Gallien;P. Gillet;P. Grant;G. Graham;S. Green;F. Grossemy;P. Heck;G. Herzog;P. Hoppe;F. Hörz;J. Huth;K. Ignatyev;H. Ishii;K. Janssens;D. Joswiak;A. Kearsley;H. Khodja;A. Lanzirotti;J. Leitner;L. Lemelle;H. Leroux;K. Luening;G. MacPherson;K. Marhas;M. Marcus;G. Matrajt;Tomoki Nakamura;K. Nakamura-messenger;T. Nakano;M. Newville;D. Papanastassiou;P. Pianetta;W. Rao;C. Riekel;F. Rietmeijer;D. Rost;C. Schwandt;T. See;J. Sheffield-Parker;A. Simionovici;I. Sitnitsky;C. Snead;F. Stadermann;T. Stephan;R. Stroud;J. Susini;Yoshio Suzuki;S. Sutton;S. Taylor;N. Teslich;D. Troadec;P. Tsou;A. Tsuchiyama;K. Uesugi;B. Vekemans;E. Vicenzi;L. Vincze;A. Westphal;P. Wozniakiewicz;E. Zinner;M. Zolensky
通讯作者:
G. Flynn;P. Bleuet;J. Borg;J. Bradley;F. Brenker;S. Brennan;J. Bridges;D. Brownlee;E. Bullock;M. Burghammer;B. Clark;Z. Dai;C. Daghlian;Z. Djouadi;S. Fakra;T. Ferroir;C. Floss;I. Franchi;Z. Gainsforth;J. Gallien;P. Gillet;P. Grant;G. Graham;S. Green;F. Grossemy;P. Heck;G. Herzog;P. Hoppe;F. Hörz;J. Huth;K. Ignatyev;H. Ishii;K. Janssens;D. Joswiak;A. Kearsley;H. Khodja;A. Lanzirotti;J. Leitner;L. Lemelle;H. Leroux;K. Luening;G. MacPherson;K. Marhas;M. Marcus;G. Matrajt;Tomoki Nakamura;K. Nakamura-messenger;T. Nakano;M. Newville;D. Papanastassiou;P. Pianetta;W. Rao;C. Riekel;F. Rietmeijer;D. Rost;C. Schwandt;T. See;J. Sheffield-Parker;A. Simionovici;I. Sitnitsky;C. Snead;F. Stadermann;T. Stephan;R. Stroud;J. Susini;Yoshio Suzuki;S. Sutton;S. Taylor;N. Teslich;D. Troadec;P. Tsou;A. Tsuchiyama;K. Uesugi;B. Vekemans;E. Vicenzi;L. Vincze;A. Westphal;P. Wozniakiewicz;E. Zinner;M. Zolensky
DOI:
--
发表时间:
2008
期刊:
Meteoritics & Planetary Science 43(In press)
影响因子:
--
作者:
A. Galatanu;et. al.;K. Tomeoka
通讯作者:
K. Tomeoka
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
F. Rietmeijer
通讯作者:
F. Rietmeijer
DOI:
--
发表时间:
2008
期刊:
Meteoritics and Planetary Sciences 43
影响因子:
--
作者:
S.Watanabe;Y.Tomikawa;Y.Kawatani;M.Takahashi;K.Sato;Rietmeijer F. J. M.
通讯作者:
Rietmeijer F. J. M.