DOI: 10.1002/2017JE005451
Scopus记录号: 2-s2.0-85044185317
论文题名: Ancient Bombardment of the Inner Solar System: Reinvestigation of the “Fingerprints” of Different Impactor Populations on the Lunar Surface
作者: Orgel C. ; Michael G. ; Fassett C.I. ; vanderBogert C.H. ; Riedel C. ; Kneissl T. ; Hiesinger H.
刊名: Journal of Geophysical Research: Planets
ISSN: 21699097
出版年: 2018
卷: 123, 期: 3 起始页码: 748
结束页码: 762
语种: 英语
英文关键词: absolute model age of lunar basins
; buffered nonsparseness correction
; impactor population
; lunar basin stratigraphy
; lunar crater population
; saturation equilibrium
Scopus关键词: basin
; crater
; geological record
; geostatistics
; impact
; lunar crust
; planetary surface
; solar system
; stratigraphy
英文摘要: The lunar cratering record provides valuable information about the late accretion history of the inner solar system. However, our understanding of the origin, rate, and timing of the impacting projectiles is far from complete. To learn more about these projectiles, we can examine crater size-frequency distributions (CSFDs) on the Moon. Here we reinvestigate the crater populations of 30 lunar basins (≥ 300 km) using the buffered nonsparseness correction technique, which takes crater obliteration into account, thus providing more accurate measurements for the frequencies of smaller crater sizes. Moreover, we revisit the stratigraphic relationships of basins based on N(20) crater frequencies, absolute model ages, and observation data. The buffered nonsparseness correction-corrected CSFDs of individual basins, particularly at smaller crater diameters are shifted upward. Contrary to previous studies, the shapes of the summed CSFDs of Pre-Nectarian (excluding South Pole-Aitken Basin), Nectarian (including Nectaris), and Imbrian (including Imbrium) basins show no statistically significant differences and thus provide no evidence for a change of impactor population. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114297
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Geological Sciences, Planetary Sciences and Remote Sensing, Freie Universität Berlin, Berlin, Germany; Heliophysics and Planetary Science Office, NASA Marshall Space Flight Center, Huntsville, AL, United States; Institut für Planetologie, Westfälische Wilhelms-Universität Münster, Münster, Germany
Recommended Citation:
Orgel C.,Michael G.,Fassett C.I.,et al. Ancient Bombardment of the Inner Solar System: Reinvestigation of the “Fingerprints” of Different Impactor Populations on the Lunar Surface[J]. Journal of Geophysical Research: Planets,2018-01-01,123(3)