Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-020-16528-7 |
In situ evidence of thermally induced rock breakdown widespread on Bennu's surface | |
Molaro, J. L.1; 39;Aubigny, C. Drouet2 | |
2020-06-09 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2020 |
卷号 | 11期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Italy |
英文摘要 | Rock breakdown due to diurnal thermal cycling has been hypothesized to drive boulder degradation and regolith production on airless bodies. Numerous studies have invoked its importance in driving landscape evolution, yet morphological features produced by thermal fracture processes have never been definitively observed on an airless body, or any surface where other weathering mechanisms may be ruled out. The Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) mission provides an opportunity to search for evidence of thermal breakdown and assess its significance on asteroid surfaces. Here we show boulder morphologies observed on Bennu that are consistent with terrestrial observations and models of fatigue-driven exfoliation and demonstrate how crack propagation via thermal stress can lead to their development. The rate and expression of this process will vary with asteroid composition and location, influencing how different bodies evolve and their apparent relative surface ages from space weathering and cratering records. In their study, the authors discuss the potential of thermal weathering on airless bodies. As a case study, they use boulder and fracture morphologies on asteroid Bennu. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000542776400007 |
WOS关键词 | BOULDERS ; STRESSES ; EXFOLIATION ; GENERATION ; STRENGTH ; POROSITY ; CRACKING ; ORIGIN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/274432 |
专题 | 资源环境科学 |
作者单位 | 1.Planetary Sci Inst, 1700 E Ft Lowell Rd,STE 106, Tucson, AZ 85719 USA; 2.Southwest Res Inst, 1050 Walnut St 300, Boulder, CO 80302 USA; 3.Smithsonian Inst, Dept Mineral Sci, Natl Museum Nat Hist, POB 37012,MRC 119, Washington, DC 20013 USA; 4.Univ Arizona, Lunar & Planetary Lab, 1629 E Univ Blvd, Tucson, AZ 85721 USA; 5.Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, 2305 Speedway Stop C1160, Austin, TX 78712 USA; 6.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Dept Earth Sci, Post Bldg STE 701,1680 East West Rd, Honolulu, HI 96822 USA; 7.INAF Astron Observ Padova, Vic Osservatorio 5, I-35122 Padua, Italy; 8.Univ Cent Florida, Dept Phys, 4111 Libra Dr,Phys Sci Bldg 430, Orlando, FL 32816 USA |
推荐引用方式 GB/T 7714 | Molaro, J. L.,39;Aubigny, C. Drouet. In situ evidence of thermally induced rock breakdown widespread on Bennu's surface[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Molaro, J. L.,&39;Aubigny, C. Drouet.(2020).In situ evidence of thermally induced rock breakdown widespread on Bennu's surface.NATURE COMMUNICATIONS,11(1). |
MLA | Molaro, J. L.,et al."In situ evidence of thermally induced rock breakdown widespread on Bennu's surface".NATURE COMMUNICATIONS 11.1(2020). |
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