Stability field and phase transition pathways of hydrous ferric sulfates in the temperature range 50 degrees C to 5 degrees C: Implication for martian ferric sulfates
文献类型：期刊论文
| 作者 | Wang, Alian; Ling, Zongcheng; Freeman, John J.; Kong, Weigang |
| 刊名 | ICARUS
 |
| 出版日期 | 2012 |
| 卷号 | 218期号:1页码:622-643 |
| 关键词 | Mars Mars Mineralogy Spectroscopy Geological processes Surface |
| ISSN号 | 0019-1035 |
| 通讯作者 | Wang, AA (reprint author), Washington Univ, Dept Earth & Planetary Sci, McDonnell Ctr Space Sci, 1 Brookings Dr, St Louis, MO 63130 USA. |
| 中文摘要 | We report the results from a systematic laboratory investigation on the fundamental properties of hydrous ferric sulfates. The study involves 150 experiments with duration of over 4 years on the stability field and phase transition pathways under Mars relevant environmental conditions for five ferric sulfates: ferricopiapite [Fe-4.67(SO4)(6)(OH)(2)center dot 20H(2)O], kornelite [Fe-2(SO4)(3)center dot 7H(2)O], a crystalline and an amorphous pentahydrated ferric sulfate [Fe-2(SO4)(3)center dot 5H(2)O], and rhomboclase [FeH(SO4)(2)center dot 4H(2)O]. During the processes of phase transitions, we observed the phenomena that reflect fundamental properties of these species and the occurrence of other common hydrous ferric sulfates, e.g. paracoquimbite [Fe-2(SO4)(3)center dot 9H(2)O]. Based on the results of this set of experiments, we have drown the boundaries of deliquescence zone of five hydrous ferric sulfates and estimated the regions of their stability field in temperature (T) - relative humidity (RH) space. Furthermore, we selected the experimental parameters for a next step investigation, which is to determine the location of the phase boundary between two solid ferric sulfates, kornelite [Fe-2(SO4)(3)center dot 7H(2)O] and pentahydrated ferric sulfate [Fe-2(SO4)(3)center dot 5H(2)O]. The experimental observations in ferricopiapite dehydration processes were used to interpret the observed spectral change of Fe-sulfate-rich subsurface soils on Mars after their exposure by the Spirit rover to current martian atmospheric conditions. (C) 2012 Elsevier Inc. All rights reserved. |
| 英文摘要 | We report the results from a systematic laboratory investigation on the fundamental properties of hydrous ferric sulfates. The study involves 150 experiments with duration of over 4 years on the stability field and phase transition pathways under Mars relevant environmental conditions for five ferric sulfates: ferricopiapite [Fe-4.67(SO4)(6)(OH)(2)center dot 20H(2)O], kornelite [Fe-2(SO4)(3)center dot 7H(2)O], a crystalline and an amorphous pentahydrated ferric sulfate [Fe-2(SO4)(3)center dot 5H(2)O], and rhomboclase [FeH(SO4)(2)center dot 4H(2)O]. During the processes of phase transitions, we observed the phenomena that reflect fundamental properties of these species and the occurrence of other common hydrous ferric sulfates, e.g. paracoquimbite [Fe-2(SO4)(3)center dot 9H(2)O]. Based on the results of this set of experiments, we have drown the boundaries of deliquescence zone of five hydrous ferric sulfates and estimated the regions of their stability field in temperature (T) - relative humidity (RH) space. Furthermore, we selected the experimental parameters for a next step investigation, which is to determine the location of the phase boundary between two solid ferric sulfates, kornelite [Fe-2(SO4)(3)center dot 7H(2)O] and pentahydrated ferric sulfate [Fe-2(SO4)(3)center dot 5H(2)O]. The experimental observations in ferricopiapite dehydration processes were used to interpret the observed spectral change of Fe-sulfate-rich subsurface soils on Mars after their exposure by the Spirit rover to current martian atmospheric conditions. (C) 2012 Elsevier Inc. All rights reserved. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 资助信息 | NASA [NNX07AQ34G, NNX10AM89G, 09-030]; NASA MoO Project for ExoMars mission [1295053]; Shandong University in China; China Scholarship Council |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3142]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Wang, Alian,Ling, Zongcheng,Freeman, John J.,et al. Stability field and phase transition pathways of hydrous ferric sulfates in the temperature range 50 degrees C to 5 degrees C: Implication for martian ferric sulfates[J]. ICARUS,2012,218(1):622-643. |
| APA | Wang, Alian,Ling, Zongcheng,Freeman, John J.,&Kong, Weigang.(2012).Stability field and phase transition pathways of hydrous ferric sulfates in the temperature range 50 degrees C to 5 degrees C: Implication for martian ferric sulfates.ICARUS,218(1),622-643. |
| MLA | Wang, Alian,et al."Stability field and phase transition pathways of hydrous ferric sulfates in the temperature range 50 degrees C to 5 degrees C: Implication for martian ferric sulfates".ICARUS 218.1(2012):622-643. |
入库方式： OAI收割
来源：国家空间科学中心
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