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Article: Geomorphologic Characteristics of Polygonal Features on Chloride-Bearing Deposits on Mars: Implications for Martian Hydrology and Astrobiology

TitleGeomorphologic Characteristics of Polygonal Features on Chloride-Bearing Deposits on Mars: Implications for Martian Hydrology and Astrobiology
Authors
KeywordsChlorides
Polygonal feature
Playa
Hydrology
Astrobiology
Mars
Issue Date2019
PublisherChina University of Geosciences. The Journal's web site is located at http://en.earth-science.net/index.aspx
Citation
Journal of Earth Science, 2019 How to Cite?
AbstractOver 600 chloride-bearing deposits (chlorides) have been identified on the southern highlands of Mars. These chlorides have critical implications for hydrology and astrobiology: they are indicators of an evaporating super saturated solution, and they could have provided habitat environments for halophilic microorganisms and preserved organic matter. One of the prominent geomorphology characteristics of these chloride-bearing regions is the polygonal features within them. The origin of these polygonal features is still in debate. In this study, we have surveyed 153 locations of chlorides using 441 high resolution imaging science experiment (HiRISE) images to characterize the geomorphology of polygonal features. We identified 3 types of polygonal features of distinct geomorphologic characteristics: fractures, raised ridges, and transitional polygons between fractures and raised ridges. We evaluate previously proposed hypotheses of the formation of the polygonal features, and suggest that the 3 types of polygonal features are indicators of different stages of salt crust formation. Salt crust is usually formed through multiple groundwater activities, and it often occurs in playa environment on Earth. The unique hydrological and astrobiological implications of the chlorides with polygonal features make these deposits of high priority for future landed on and/or sample return exploration missions of Mars.
Persistent Identifierhttp://hdl.handle.net/10722/272166
ISSN
2017 Impact Factor: 1.5
2015 SCImago Journal Rankings: 0.483

 

DC FieldValueLanguage
dc.contributor.authorYe, B-
dc.contributor.authorHuang, J-
dc.contributor.authorMichalski, J-
dc.contributor.authorXiao, L-
dc.date.accessioned2019-07-20T10:36:58Z-
dc.date.available2019-07-20T10:36:58Z-
dc.date.issued2019-
dc.identifier.citationJournal of Earth Science, 2019-
dc.identifier.issn1674-487X-
dc.identifier.urihttp://hdl.handle.net/10722/272166-
dc.description.abstractOver 600 chloride-bearing deposits (chlorides) have been identified on the southern highlands of Mars. These chlorides have critical implications for hydrology and astrobiology: they are indicators of an evaporating super saturated solution, and they could have provided habitat environments for halophilic microorganisms and preserved organic matter. One of the prominent geomorphology characteristics of these chloride-bearing regions is the polygonal features within them. The origin of these polygonal features is still in debate. In this study, we have surveyed 153 locations of chlorides using 441 high resolution imaging science experiment (HiRISE) images to characterize the geomorphology of polygonal features. We identified 3 types of polygonal features of distinct geomorphologic characteristics: fractures, raised ridges, and transitional polygons between fractures and raised ridges. We evaluate previously proposed hypotheses of the formation of the polygonal features, and suggest that the 3 types of polygonal features are indicators of different stages of salt crust formation. Salt crust is usually formed through multiple groundwater activities, and it often occurs in playa environment on Earth. The unique hydrological and astrobiological implications of the chlorides with polygonal features make these deposits of high priority for future landed on and/or sample return exploration missions of Mars.-
dc.languageeng-
dc.publisherChina University of Geosciences. The Journal's web site is located at http://en.earth-science.net/index.aspx-
dc.relation.ispartofJournal of Earth Science-
dc.subjectChlorides-
dc.subjectPolygonal feature-
dc.subjectPlaya-
dc.subjectHydrology-
dc.subjectAstrobiology-
dc.subjectMars-
dc.titleGeomorphologic Characteristics of Polygonal Features on Chloride-Bearing Deposits on Mars: Implications for Martian Hydrology and Astrobiology-
dc.typeArticle-
dc.identifier.emailMichalski, J: jmichal@hku.hk-
dc.identifier.authorityMichalski, J=rp02225-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s12583-019-1212-2-
dc.identifier.scopuseid_2-s2.0-85066505151-
dc.identifier.hkuros299205-
dc.publisher.placeChina-

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