Global survey of lunar regolith depths from LROC images

被引：106
|
作者：
Bart, Gwendolyn D. [1 ]
Nickerson, Ryan D. [1 ]
Lawder, Matthew T. [2 ]
Melosh, H. J. [3 ]
机构：
[1] Univ Idaho, Dept Phys, Moscow, ID 83843 USA
[2] Butler Univ, Dept Phys & Astron, Indianapolis, IN 46208 USA
[3] Purdue Univ, Dept Earth & Atmospher Sci, W Lafayette, IN 47907 USA
来源：
ICARUS | 2011年 / 215卷 / 02期
关键词：
Moon; Surface; Cratering; Impact processes; Regoliths; SURFACE LAYER; CRATERS; THICKNESS; CAMERA;
D O I：
10.1016/j.icarus.2011.07.017
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We performed the first global survey of lunar regolith depths using Lunar Reconnaissance Orbiter Camera (LROC) data and the crater morphology method for determining regolith depth. We find that on both the lunar farside and in the nearside, non-mare regions, the regolith depth is twice as deep as it is within the lunar maria. Our data compare favorably with previous studies where such data exist. We also find that regolith depth correlates well with density of large craters (>20 km diameter). This result is consistent with the gradual formation of regolith by rock fracture during impact events. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码：485 / 490
页数：6
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