Did an impact blast away half of the martian crust?

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作者：
H. J. Melosh
机构：
[1] H. J. Melosh is at the Lunar and Planetary Lab,
[2] University of Arizona,undefined
[3] Tucson Arizona 85721,undefined
[4] USA. jmelosh@lpl.arizona.edu,undefined
来源：
Nature Geoscience | 2008年 / 1卷
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摘要：
The northern and southern hemispheres of Mars are topographically distinct. Crustal thickness analyses and numerical simulations suggest a giant impact just after the crust differentiated 4.4 billion years ago as a plausible cause for this dichotomy.
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页码：412 / 414
页数：2
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