TY - JOUR
T1 - Mineralogy of four Itokawa particles collected from the first touchdown site
AU - Noguchi, Takaaki
AU - Bridges, John C.
AU - Hicks, Leon J.
AU - Gurman, Steven J.
AU - Kimura, Makoto
AU - Hashimoto, Takahito
AU - Konno, Mitsuru
AU - Bradley, John P.
AU - Okazaki, Ryuji
AU - Uesugi, Masayuki
AU - Yada, Toru
AU - Karouji, Yuzuru
AU - Abe, Masanao
AU - Okada, Tatsuaki
AU - Mitsunari, Takuya
AU - Nakamura, Tomoki
AU - Kagi, Hiroyuki
N1 - Funding Information:
We thank the Hayabusa project team for the return sample. We express our thanks to N. Mori, I. Ohnishi, and K. Shimada for supporting to use FE-EPMA and FE-TEM at JEOL Corporation and Kyushu University. L. P. Keller was appreciated for the discussion on the track density at the Hayabusa symposium. We are grateful for T. Mikouchi’s and A. Tsuchiyama’s valuable referee comments. T. Noguchi was supported by JSPS KAKENHI grant number 2424408. J Bridges and L. Hicks were supported by STFC, UK.
Publisher Copyright:
© 2014 Noguchi et al.; licensee Springer.
PY - 2014/12/1
Y1 - 2014/12/1
N2 - 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.
AB - 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.
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U2 - 10.1186/1880-5981-66-124
DO - 10.1186/1880-5981-66-124
M3 - Article
AN - SCOPUS:84929658025
SN - 1343-8832
VL - 66
JO - earth, planets and space
JF - earth, planets and space
IS - 1
M1 - 124
ER -