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DOI | 10.1002/2018GL077544 |
Global Distribution and Spectral Properties of Low-Reflectance Material on Mercury | |
Klima, Rachel L.; Denevi, Brett W.; Ernst, Carolyn M.; Murchie, Scott L.; Peplowski, Patrick N. | |
2018-04-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:7页码:2945-2953 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We examine the global distribution and spectral properties of low-reflectance material (LRM) across Mercury to estimate the relative carbon abundance of prominent exposures and to test hypotheses for the origin of carbon in LRM. Our mapping demonstrates that LRM is consistently excavated from depth and that the spectral curvature attributed to carbon becomes more subdued as these surface deposits age. We find that the 600-nm band depth in LRM deposits is related to carbon content and can be used to estimate carbon enrichment. LRM deposits excavated by basins and large craters may be enriched with as much as 4 wt% carbon over the local mean. Regional deposits, associated with the most heavily cratered terrains, are enriched by an average of similar to 2.5 wt% carbon. The association of LRM with excavation from depth shows that the carbon in LRM is native to the planet, rather than deposited over time by impacts. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435743400009 |
WOS关键词 | X-RAY SPECTROMETER ; EXPLOSIVE VOLCANISM ; PLANETS FORMATION ; IMPACT CRATERS ; SMOOTH PLAINS ; MESSENGER ; SURFACE ; EVOLUTION ; HOLLOWS ; ORIGIN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27493 |
专题 | 气候变化 |
作者单位 | Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 21218 USA |
推荐引用方式 GB/T 7714 | Klima, Rachel L.,Denevi, Brett W.,Ernst, Carolyn M.,et al. Global Distribution and Spectral Properties of Low-Reflectance Material on Mercury[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(7):2945-2953. |
APA | Klima, Rachel L.,Denevi, Brett W.,Ernst, Carolyn M.,Murchie, Scott L.,&Peplowski, Patrick N..(2018).Global Distribution and Spectral Properties of Low-Reflectance Material on Mercury.GEOPHYSICAL RESEARCH LETTERS,45(7),2945-2953. |
MLA | Klima, Rachel L.,et al."Global Distribution and Spectral Properties of Low-Reflectance Material on Mercury".GEOPHYSICAL RESEARCH LETTERS 45.7(2018):2945-2953. |
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