Global survey of lunar wrinkle ridge formation times
Z. Yue;  G.G. Michael;  K. Di;  J. Liu
刊名Earth and Planetary Science Letters
2017
卷号477期号:1页码:14-20
关键词Lunar Wrinkle Ridges Age Determination Buffered Crater Counting
英文摘要

Wrinkle ridges are a common feature of the lunar maria and record subsequent contraction of mare infill. Constraining the timing of wrinkle ridge formation from crater counts is challenging because they have limited areal extent and it is difficult to determine whether superposed craters post-date ridge formation or have alternatively been uplifted by the deformation. Some wrinkle ridges do allow determination to be made. This is possible where a ridge shows a sufficiently steep boundary or scarp that can be identified as deforming an intersecting crater or the crater obliterates the relief of the ridge. Such boundaries constitute only a small fraction of lunar wrinkle ridge structures yet they are sufficiently numerous to enable us to obtain statistically significant crater counts over systems of structurally related wrinkle ridges. We carried out a global mapping of mare wrinkle ridges, identifying appropriate boundaries for crater identification, and mapping superposed craters. Selected groups of ridges were analyzed using the buffered crater counting method. We found that, except for the ridges in mare Tranquilitatis, the ridge groups formed with average ages between 3.5 and 3.1 Ga ago, or 100–650 Ma after the oldest observable erupted basalts where they are located. We interpret these results to suggest that local stresses from loading by basalt fill are the principal agent responsible for the formation of lunar wrinkle ridges, as others have proposed. We find a markedly longer interval before wrinkle ridge formation in Tranquilitatis which likely indicates a different mechanism of stress accumulation at this site

语种英语
内容类型期刊论文
源URL[http://ir.gyig.ac.cn/handle/42920512-1/8022]  
专题地球化学研究所_月球与行星科学研究中心
作者单位1.Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550002, China
2.Institute of Geological Sciences, Freie Unversitaet Berlin, Malteser Strasse 74-100, Haus D, Berlin, 12249, Germany
3.State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100101, China
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GB/T 7714
Z. Yue;G.G. Michael;K. Di;J. Liu. Global survey of lunar wrinkle ridge formation times[J]. Earth and Planetary Science Letters,2017,477(1):14-20.
APA Z. Yue;G.G. Michael;K. Di;J. Liu.(2017).Global survey of lunar wrinkle ridge formation times.Earth and Planetary Science Letters,477(1),14-20.
MLA Z. Yue;G.G. Michael;K. Di;J. Liu."Global survey of lunar wrinkle ridge formation times".Earth and Planetary Science Letters 477.1(2017):14-20.
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