@inproceedings{oai:jaxa.repo.nii.ac.jp:00020482,
 author = {宮本, 英昭 and 矢野, 創 and 佐々木, 晶 and Scheeres, Daniel J. and BarnouinJha, O. and Gaskell, Robert W. and 阿部, 新助 and 出村, 裕英 and 平田, 成 and 石黒, 正晃 and Miyamoto, Hideaki and Yano, Hajime and Sasaki, Sho and Scheeres, Daniel J. and BarnouinJha, O. and Gaskell, Robert W. and Abe, Shinsuke and Demura, Hirohide and Hirata, Naru and Ishiguro, Masateru},
 book = {第39回月・惑星シンポジウム, Proceedings of the 39th ISAS Lunar and Planetary Symposium},
 month = {Aug},
 note = {We propose that a global migration of gravel on the surface is a critical process for the evolution of regolith on a small asteroid. Series of evidence indicate that un-consolidated gravel had globally migrated on Itokawa and segregated to form well-sorted pebble ponds as sedimentary deposits. The migrations are due to fluidizations of gravels, likely induced by seismic shakings. These evidenced by characteristic morphologies of deposits, whose surface textures are clearly observed by close-up images up to 6 mm/pixel resolution. The reported processes become major on this asteroid due to its small size, and thus, should be expected on other small near earth asteroids. The estimated total volume of pebbles on Itokawa is consistent with size-distributions of boulders, supporting the view that Itokawa has a rubble-pile structure as an aggregate of a disrupted body., 資料番号: AA0063505020},
 pages = {78--81},
 publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)},
 title = {Regolith on Itokawa: Migrations and granular processes},
 year = {2006}
}