globalchange  > 科学计划与规划
DOI: 10.1002/2016GL071143
论文题名:
Timing of optical maturation of recently exposed material on Ceres
作者: Schmedemann N.; Kneissl T.; Neesemann A.; Stephan K.; Jaumann R.; Krohn K.; Michael G.G.; Matz K.D.; Otto K.A.; Raymond C.A.; Russell C.T.
刊名: Geophysical Research Letters
ISSN: 0094-8338
EISSN: 1944-8069
出版年: 2016
卷: 43, 期:23
起始页码: 11987
结束页码: 11993
语种: 英语
英文关键词: age ; Ceres ; crater ; maturation ; weathering
Scopus关键词: Timing circuits ; Weathering ; Ceres ; Crater ; Geologic process ; Maturation ; Multispectral imaging data ; Specific time ; Spectral properties ; Time-dependent changes ; Color ; Cereeae ; Ceres
英文摘要: On Ceres, multispectral imaging data from the Dawn spacecraft show a distinct bluish characteristic for recently exposed material from the subsurface in, for example, crater ejecta. Ejecta blankets of presumably old craters show a more reddish spectrum. We selected areas in which fresh material from the Cerean subsurface was exposed at a specific time in the past, and no later geologic process is expected to have changed its surface composition or its cratering record. For each area, we determined two color ratios and the crater retention age. The measured color ratios show an exponential diminishment of the bluish characteristic over time. Although the cause of the color change remains uncertain, the time-dependent change in spectral properties is evident, which could help identify the process. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007248790&doi=10.1002%2f2016GL071143&partnerID=40&md5=da30d6c72b017a1ec4e4b7234dcdc928
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9301
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: Institute of Geological Sciences, Freie Universität Berlin, Berlin, Germany

Recommended Citation:
Schmedemann N.,Kneissl T.,Neesemann A.,et al. Timing of optical maturation of recently exposed material on Ceres[J]. Geophysical Research Letters,2016-01-01,43(23).
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