Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.pss.2013.05.019 |
The high elevation Dry Valleys in Antarctica as analog sites for subsurface ice on Mars | |
Heldmann, J. L.1; Pollard, W.2; McKay, C. P.1; Marinova, M. M.1,3; Davila, A.1,4; Williams, K. E.1,5; Lacelle, D.6; Andersen, D. T.4 | |
通讯作者 | Heldmann, J. L. |
来源期刊 | PLANETARY AND SPACE SCIENCE
![]() |
ISSN | 0032-0633 |
出版年 | 2013 |
卷号 | 85页码:53-58 |
英文摘要 | The high elevation valleys of the McMurdo Dry Valleys of Antarctica are the only locations on Earth known to contain dry permafrost. The Dry Valleys are a hyper-arid polar desert environment and above 1500 m elevation, air temperatures do not exceed 0 degrees C and thus, similarly to Mars, liquid water is largely absent and instead the hydrologic cycle is dominated by frozen ice and vapor phase processes such as sublimation. These conditions make the high elevation Dry Valleys a key Mars analog location where periglacial processes and geomorphic features, and their use as a diagnostic for subsurface ice, can be studied in situ. Two valleys in the upper Dry Valleys show a diversity of subsurface ice; University Valley is dominated by dry permafrost overlying ice-cemented to ice-bonded ground and nearby middle Beacon Valley is dominated by massive ground ice. In both cases the ice is 10-60 cm below the surface. Here we compare the surface features in these two valleys to assess any correlation with the nature of the subsurface ice and compare these features to similar features seen at the Phoenix landing site on Mars. We conclude that while surface features may be indicative of ground ice, no specific correlations are possible and more direct methods are required to determine the nature of subsurface ice on Mars. (C) 2013 Published by Elsevier Ltd. |
英文关键词 | Ice Mars Polar regions Antarctica Drilling |
类型 | Article |
语种 | 英语 |
国家 | USA ; Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000324364100005 |
WOS关键词 | SOUTHERN VICTORIA LAND ; ROCK TEMPERATURE DATA ; MIOCENE GLACIER ICE ; BEACON VALLEY ; GROUND ICE ; LOW RATES ; SUBLIMATION ; PERMAFROST ; STABILITY ; SURFACE |
WOS类目 | Astronomy & Astrophysics |
WOS研究方向 | Astronomy & Astrophysics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/179251 |
作者单位 | 1.NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA; 2.McGill Univ, Dept Geog, Montreal, PQ H3A 2T5, Canada; 3.BAER Inst, West Sonoma, CA 95476 USA; 4.SETI Inst, Mountain View, CA 94041 USA; 5.Montana State Univ, Dept Earth Sci, Bozeman, MT 59717 USA; 6.Univ Ottawa, Dept Geog, Ottawa, ON K1N 6N5, Canada |
推荐引用方式 GB/T 7714 | Heldmann, J. L.,Pollard, W.,McKay, C. P.,et al. The high elevation Dry Valleys in Antarctica as analog sites for subsurface ice on Mars[J],2013,85:53-58. |
APA | Heldmann, J. L..,Pollard, W..,McKay, C. P..,Marinova, M. M..,Davila, A..,...&Andersen, D. T..(2013).The high elevation Dry Valleys in Antarctica as analog sites for subsurface ice on Mars.PLANETARY AND SPACE SCIENCE,85,53-58. |
MLA | Heldmann, J. L.,et al."The high elevation Dry Valleys in Antarctica as analog sites for subsurface ice on Mars".PLANETARY AND SPACE SCIENCE 85(2013):53-58. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。