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DOI | 10.1029/2019GL084097 |
Time-Dependent Production Functions of Lunar Simple Craters on Layered Targets With Consideration of Topographic Degradation | |
Xie, Minggang1; Xiao, Zhiyong1,2,3; Xu, Aoao1 | |
2019-10-23 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Impact bombardment changes target properties, and topographic degradation increases crater diameters. These effects potentially change the shape of lunar production function (PF), which is usually assumed to be constant with time. Using crater scaling laws, we model PFs (MPFs) formed by near-Earth objects on two-layer target models that have increasing regolith thickness with time. Model-derived MPFs show a significantly elevated production rate for small lunar craters, which is consistent with a high regolith production rate during the last similar to 1 Ma. Further integrating the effect of topographic degradation, we model the time-dependent observable PFs (MOPFs) from the MPFs. Comparing among MOPFs, MPFs, and the prevailing Neukum PF suggests that, for D = 10-1,000 m simple craters, applying MPFs and Neukum PF may cause the derived cumulative density of D > 1 km craters (i.e., N(1)) to differ from its real value by a factor up to similar to 3 and similar to 10, respectively. |
英文关键词 | target properties production function topographic degradation chronology regolith impact craters |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000491855100001 |
WOS关键词 | REGOLITH THICKNESS ; MOON ; CHRONOLOGY ; SURFACE ; CONSTRAINTS ; VARIABILITY ; VOLCANISM ; EROSION ; DEPTHS ; CAMERA |
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/187765 |
专题 | 气候变化 |
作者单位 | 1.Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau, Peoples R China; 2.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai, Peoples R China; 3.CAS Ctr Excellence Comparat Planetol, Hefei, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Xie, Minggang,Xiao, Zhiyong,Xu, Aoao. Time-Dependent Production Functions of Lunar Simple Craters on Layered Targets With Consideration of Topographic Degradation[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Xie, Minggang,Xiao, Zhiyong,&Xu, Aoao.(2019).Time-Dependent Production Functions of Lunar Simple Craters on Layered Targets With Consideration of Topographic Degradation.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Xie, Minggang,et al."Time-Dependent Production Functions of Lunar Simple Craters on Layered Targets With Consideration of Topographic Degradation".GEOPHYSICAL RESEARCH LETTERS (2019). |
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