Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL096710 |
Rock abundance on the lunar mare on surfaces of different age: Implications for regolith evolution and thickness | |
Sashank Vanga; Caleb I. Fassett; Michael Zanetti; Cole Nypaver; Bradley J. Thomson; Masatoshi Hirabayashi | |
2022-02-11 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2022 |
英文摘要 | The growth of lunar regolith over time affects surface rock abundance, because larger, less frequent impacts are needed to penetrate thicker regolith developed on older surfaces and excavate rocks. On younger surfaces with thinner regolith, smaller, more frequent impacts are sufficient to excavate rocks. We quantify the correlation between observed rock abundances and age on the lunar surface by comparing Diviner rock abundance data to the surface ages of inter-crater parts on the maria. Our observations show the expected negative correlation between age and rock abundance. The commonality of non-zero rock abundance values on ancient surfaces, combined with a simple Monte Carlo model of the rock excavation process, suggest that rocks re-excavated from the regolith volume contribute to the presently observed rock population on the lunar surface. The half-life of meter-scale surface rocks most consistent with our observations is 80±20 Myr. |
领域 | 气候变化 |
URL | 查看原文 |
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/346748 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Sashank Vanga,Caleb I. Fassett,Michael Zanetti,et al. Rock abundance on the lunar mare on surfaces of different age: Implications for regolith evolution and thickness[J]. Geophysical Research Letters,2022. |
APA | Sashank Vanga,Caleb I. Fassett,Michael Zanetti,Cole Nypaver,Bradley J. Thomson,&Masatoshi Hirabayashi.(2022).Rock abundance on the lunar mare on surfaces of different age: Implications for regolith evolution and thickness.Geophysical Research Letters. |
MLA | Sashank Vanga,et al."Rock abundance on the lunar mare on surfaces of different age: Implications for regolith evolution and thickness".Geophysical Research Letters (2022). |
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