globalchange  > 科学计划与规划
DOI: 10.1002/2015GL067515
论文题名:
Mineralogical indicators of Mercury's hollows composition in MESSENGER color observations
作者: Vilas F.; Domingue D.L.; Helbert J.; D'Amore M.; Maturilli A.; Klima R.L.; Stockstill-Cahill K.R.; Murchie S.L.; Izenberg N.R.; Blewett D.T.; Vaughan W.M.; Head J.W.
刊名: Geophysical Research Letters
ISSN: 0094-9330
EISSN: 1944-9061
出版年: 2016
卷: 43, 期:4
起始页码: 1450
结束页码: 1456
语种: 英语
英文关键词: hollows ; Mercury (planet) ; Mercury surface composition ; MESSENGER ; spectral reflectance
Scopus关键词: Color image processing ; Hoppers ; Minerals ; Orbits ; Reflection ; Absorption features ; Hollows ; MErcury Surface ; MESSENGER ; Reflectance spectrum ; Spectral absorption features ; Spectral reflectances ; Spectral signature ; Mercury (metal) ; absorption ; color ; crater ; filter ; imaging method ; Mercury (planet) ; mineralogy ; research program ; slumping ; spectral reflectance
英文摘要: Early during MErcury Surface Space ENvironment GEochemistry, and Ranging (MESSENGER)'s orbital mission, the Mercury Dual-Imaging System imaged the landform called hollows on the two craters Dominici and Hopper, using its Wide-Angle Camera with eight narrowband color filters ranging from 433 to 996 nm. An absorption feature centered in the MDIS 629 nm filter is evident in reflectance spectra for Dominici's south wall/rim hollows. A different absorption feature found in photometry of Dominici's center hollows extends through the MDIS 828 nm filter. Hollows in Hopper exhibit a weaker spectral absorption feature than that observed in Dominici's center. At Dominici, we postulate that fresher hollows-hosting material in the wall/rim was exposed to the space environment through a process of slumping of the overlying material. With time, local and global processes darken the hollows and change or mix the surface mineralogy, so that the spectral signature evolves. The hollows could contain low-density MgS and an opaque component, potentially derived from background material. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977860295&doi=10.1002%2f2015GL067515&partnerID=40&md5=4badf183ab95dbc0d7a6cc87160ad326
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10293
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Planetary Science Institute, Tucson, AZ, United States

Recommended Citation:
Vilas F.,Domingue D.L.,Helbert J.,et al. Mineralogical indicators of Mercury's hollows composition in MESSENGER color observations[J]. Geophysical Research Letters,2016-01-01,43(4).
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