[P-PS13] 月の科学と探査

[PPS13-02] ハイパースペクトルリモートセンシングによる月火山性ガラスに富む領域の全球捜索

*山本 聡¹、中村 良介²、松永 恒雄¹、小川 佳子³、石原 吉明⁴、諸田 智克⁵、平田 成³、大竹 真紀子⁴、廣井 孝弘⁶、横田 康弘⁷、春山 純一⁴ (1.国環研、2.産総研、3.会津大、4.JAXA/ISAS、5.名古屋大、6.ブラウン大、7.筑波惑星研究会)

キーワード：リモートセンシング、ハイパースペクトル、 月、かぐや

Spectral Profiler (SP) onboard SELENE/Kaguya has obtained continuous spectral reflectance data (hyperspectral data) for about 70 million points on the Moon in the visible and near-infrared wavelength ranges. Using a data ming approach with all the SP data, global distributions of large area sites with exposed end-member of various lunar major minerals have been revealed: olivine-rich sites, purest anorthosite sites, high Ca pyroxene-rich sites, low Ca pyroxene-rich sites, and spinel-rich sites. In addition to these sites, it is expected that there are exposure sites of quenched glasses from volcanic eruptions on the lunar surface. Although several remote-sensing observations for the volcanic glasses on the Moon have been reported, the global distribution of the glass-rich sites on the Moon has been unknown. Thus, we conducted the global survey using SP data to reveal the global distribution of the glass-rich sites on the Moon. From the global distribution data, we will discuss the compositional variation of the lunar mantle and/or the distribution of the amount of volatiles in the mantle.