DOI: 10.1016/j.epsl.2020.116272
论文题名: A catalogue of impact craters larger than 200 m and surface age analysis in the Chang'e-5 landing area
作者: Jia M. ; Yue Z. ; Di K. ; Liu B. ; Liu J. ; Michael G.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 541 语种: 英语
中文关键词: Chang'e-5
; craters
; surface age
英文关键词: Cameras
; Geologic models
; Landing
; Lunar landing
; Morphology
; Orbits
; Crater distribution
; Geological analysis
; Lunar reconnaissance orbiters
; Orthophoto maps
; Scientific researches
; Spectral characteristics
; Surface modeling
; Systematic analysis
; Lunar missions
; crater
; exploration
; geochronology
; geological survey
; impact structure
; lunar crust
; Moon
; research work
; satellite data
; satellite imagery
英文摘要: Chang'e-5 (CE-5) is the first sample-return mission of China's lunar exploration and will be launched in 2020. The planned landing area is near Mons Rümker in Oceanus Procellarum. It is important to have a detailed geological analysis of the landing area prior to the lunar sample collection. The crater size-frequency distribution curve, combined with radioisotope dating of components of the returned sample by CE-5, may allow a refinement of the lunar chronology function. Based on a digital orthophoto map with a pixel size of 1.5 m generated from more than 700 Lunar Reconnaissance Orbiter Camera Narrow Angle Camera images of the CE-5 landing area, all impact craters larger than 200 m in diameter were extracted. Using the resultant crater catalogue of 32,277 craters, a systematic analysis of the landing area including the crater distribution, morphology characteristics, and geologic model ages is conducted. The results show that craters smaller than 1,000 m are denser in the east and the west parts of the region, while those larger than 1,000 m tend to be more concentrated in the central part, particularly within the range of 61.5°W–64.5°W. Within nine geologic units divided using the spectral characteristics, the geologic unit of Em1 (Eratosthenian-aged mare, Em) near the Mons Rümker is the youngest with a model age of 2.02−0.16 +0.16 Ga. The three Rümker plateau (IR) units are the oldest parts of the landing area with the largest model age of 3.49−0.12 +0.073 Ga. The crater catalogue and the surface model age analysis results can contribute to the CE-5 mission as well as further scientific research. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165055
Appears in Collections: 气候变化与战略
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作者单位: State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China; State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Macau, China; Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550002, China; CAS Center for Excellence in Comparative Planetology, Hefei, 230026, China; Institute of Geological Sciences, Freie Unversitaet Berlin, Malteser Strasse 74-100, Haus D, Berlin, 12249, Germany
Recommended Citation:
Jia M.,Yue Z.,Di K.,et al. A catalogue of impact craters larger than 200 m and surface age analysis in the Chang'e-5 landing area[J]. Earth and Planetary Science Letters,2020-01-01,541