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Effect of Topography Degradation on Crater Size-Frequency Distributions: Implications for Populations of Small Craters and Age Dating
Xie, Minggang1; Zhu, Meng-Hua1; Xiao, Zhiyong1,2; Wu, Yunzhao3,4; Xu, Aoao1
2017-10-28
Source PublicationGEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
Volume44Issue:20Pages:10171-10179
Corresponding AuthorXie, Minggang(xieminggang13@gmail.com) ; Zhu, Meng-Hua(mhzhu@must.edu.mo)
AbstractWhether or not background secondary craters dominate populations of small impact craters on terrestrial bodies is a half-century controversy. It has been suggested that small craters on some planetary bodies are dominated by background secondary craters based partly on the steepened slope of crater size-frequency distribution (CSFD) toward small diameters, such as the less than similar to 1 km diameter crater population on the lunar mare. Here we show that topography degradation enlarges craters and increases CSFD slopes with time. When topography degradation is taken into account, for various-aged crater populations, the observed steep CSFD at small diameters is uniformly consistent with an originally shallower CSFD, whose slope is undifferentiated from the CSFD slope estimated from near-Earth objects and terrestrial bolides. The results show that the effect of topography degradation on CSFD is important in dating planetary surfaces, and the steepening of CSFD slopes is not necessarily caused by secondary cratering, but rather a natural consequence of topography degradation.
DOI10.1002/2017GL075298
WOS KeywordINNER SOLAR-SYSTEM ; LUNAR IMPACT CRATERS ; SECONDARY CRATERS ; SURFACE ; MARS ; MOON ; MERCURY ; EQUILIBRIUM ; CONSTRAINTS ; VARIABILITY
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000416761600011
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22086
Collection中国科学院紫金山天文台
Corresponding AuthorXie, Minggang; Zhu, Meng-Hua
Affiliation1.Macau Univ Sci & Technol, Lunar & Planetary Sci Lab, Macau, Peoples R China
2.China Univ Geosci, Sch Earth Sci, Planetary Sci Inst, Wuhan, Hubei, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing, Jiangsu, Peoples R China
4.Jiangsu Ctr Collaborat Innovat Geog Informat Res, Nanjing, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Xie, Minggang,Zhu, Meng-Hua,Xiao, Zhiyong,et al. Effect of Topography Degradation on Crater Size-Frequency Distributions: Implications for Populations of Small Craters and Age Dating[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(20):10171-10179.
APA Xie, Minggang,Zhu, Meng-Hua,Xiao, Zhiyong,Wu, Yunzhao,&Xu, Aoao.(2017).Effect of Topography Degradation on Crater Size-Frequency Distributions: Implications for Populations of Small Craters and Age Dating.GEOPHYSICAL RESEARCH LETTERS,44(20),10171-10179.
MLA Xie, Minggang,et al."Effect of Topography Degradation on Crater Size-Frequency Distributions: Implications for Populations of Small Craters and Age Dating".GEOPHYSICAL RESEARCH LETTERS 44.20(2017):10171-10179.
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