Pingos on Earth and Mars

被引:69
|
作者
Burr, Devon M. [1 ,2 ]
Tanaka, Kenneth L. [3 ]
Yoshikawa, Kenji [4 ]
机构
[1] Univ Tennessee, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA
[2] SETI Inst, Carl Sagan Ctr, Mountain View, CA 94043 USA
[3] US Geol Survey, Astrogeol Team, Flagstaff, AZ 86001 USA
[4] Univ Alaska, Inst No Engn, Fairbanks, AK 99775 USA
关键词
Mars; Surface; Ground ice; Periglacial; Terrestrial analogues; WESTERN-ARCTIC-COAST; ATHABASCA VALLES; GROUND ICE; GROWTH; PALSAS; UTOPIA; CANADA; GEOMORPHOLOGY; PERMAFROST; GENESIS;
D O I
10.1016/j.pss.2008.11.003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Pingos are massive ice-cored mounds that develop through pressurized groundwater flow mechanisms. Pingos and their collapsed forms are found in periglacial and paleoperiglacial terrains on Earth, and have been hypothesized for a wide variety of locations on Mars. This literature review of pingos on Earth and Mars first summarizes the morphology of terrestrial pingos and their geologic contexts. That information is then used to asses hypothesized pingos on Mars. Pingo-like forms (PLFs) in Utopia Planitia are the most viable candidates for pingos or collapsed pingos. Other PLFs hypothesized in the literature to be pingos may be better explained with other mechanisms than those associated with terrestrial-style pingos. (C) 2008 Elsevier Ltd, All rights reserved.
引用
收藏
页码:541 / 555
页数:15
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