DOI: 10.1002/2014GL060302
论文题名: Experimental evidence for the formation of liquid saline water on Mars
作者: Fischer E. ; Martínez G.M. ; Elliott H.M. ; Rennõ N.O.
刊名: Geophysical Research Letters
ISSN: 0094-10014
EISSN: 1944-9745
出版年: 2014
卷: 41, 期: 13 起始页码: 4456
结束页码: 4462
语种: 英语
英文关键词: brines
; deliquescence
; Mars
; Raman spectroscopy
; water on Mars
Scopus关键词: Brines
; Ice
; Inorganic compounds
; Raman spectroscopy
; Salts
; Water vapor
; deliquescence
; Environmental conditions
; Experimental evidence
; Laboratory experiments
; Mars
; Martian polar regions
; Shallow subsurface
; Water on Mars
; Liquids
英文摘要: Evidence for deliquescence of perchlorate salts has been discovered in the Martian polar region while possible brine flows have been observed in the equatorial region. This appears to contradict the idea that bulk deliquescence is too slow to occur during the short periods of the Martian diurnal cycle during which conditions are favorable for it. We conduct laboratory experiments to study the formation of liquid brines at Mars environmental conditions. We find that when water vapor is the only source of water, bulk deliquescence of perchlorates is not rapid enough to occur during the short periods of the day during which the temperature is above the salts' eutectic value, and the humidity is above the salts' deliquescence value. However, when the salts are in contact with water ice, liquid brine forms in minutes, indicating that aqueous solutions could form temporarily where salts and ice coexist on the Martian surface and in the shallow subsurface. Key Points The formation of brines at Martian conditions was studied experimentally Bulk deliquescence from water vapor is too slow to occur diurnally on Mars Brines form in minutes when salts are placed in direct contact with ice ©2014. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903671829&doi=10.1002%2f2014GL060302&partnerID=40&md5=70762f53c87a34c2fcf1ac3fd91869ce
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7278
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor MI, United States
Recommended Citation:
Fischer E.,Martínez G.M.,Elliott H.M.,et al. Experimental evidence for the formation of liquid saline water on Mars[J]. Geophysical Research Letters,2014-01-01,41(13).