Mineralogy of four Itokawa particles collected from the first touchdown site

Takaaki Noguchi, John C. Bridges, Leon J. Hicks, Steven J. Gurman, Makoto Kimura, Takahito Hashimoto, Mitsuru Konno, John P. Bradley, Ryuji Okazaki, Masayuki Uesugi, Toru Yada, Yuzuru Karouji, Masanao Abe, Tatsuaki Okada, Takuya Mitsunari, Tomoki Nakamura, Hiroyuki Kagi

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6 Citations (Scopus)

Abstract

Four Itokawa particles collected from the first touchdown site were mineralogically investigated by optical microscopy, micro-Raman (μ-Raman) spectrometry, scanning electron microscopy (SEM), electron microprobe analysis (EPMA), X-ray absorption spectroscopy (XAS), and transmission electron microscopy (TEM). Their mineralogy has an affinity to that of LL6 chondrites based on micro-Raman spectroscopy, EPMA, and XAS analyses. However, the space weathering rims on them are less developed than those observed on the Itokawa particles collected from the second touchdown site. Solar flare tracks are rarely observed in the four particles, whose number densities were lower than those observed in the Itokawa particles from the second touchdown site.

Original languageEnglish
Article number124
Journalearth, planets and space
Volume66
Issue number1
DOIs
Publication statusPublished - Dec 1 2014

All Science Journal Classification (ASJC) codes

  • Geology
  • Space and Planetary Science

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    Noguchi, T., Bridges, J. C., Hicks, L. J., Gurman, S. J., Kimura, M., Hashimoto, T., Konno, M., Bradley, J. P., Okazaki, R., Uesugi, M., Yada, T., Karouji, Y., Abe, M., Okada, T., Mitsunari, T., Nakamura, T., & Kagi, H. (2014). Mineralogy of four Itokawa particles collected from the first touchdown site. earth, planets and space, 66(1), [124]. https://doi.org/10.1186/1880-5981-66-124