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dc.contributor.authorDundas, C.M.
dc.contributor.authorMellon, M.T.
dc.contributor.authorPosiolova, L.V.
dc.contributor.authorMiljković, Katarina
dc.contributor.authorCollins, G.S.
dc.contributor.authorTornabene, L.L.
dc.contributor.authorRangarajan, V.G.
dc.contributor.authorGolombek, M.P.
dc.contributor.authorWarner, N.H.
dc.contributor.authorDaubar, I.J.
dc.contributor.authorByrne, S.
dc.contributor.authorMcEwen, A.S.
dc.contributor.authorSeelos, K.D.
dc.contributor.authorViola, D.
dc.contributor.authorBramson, A.M.
dc.contributor.authorSpeth, G.
dc.date.accessioned2024-10-16T01:35:22Z
dc.date.available2024-10-16T01:35:22Z
dc.date.issued2023
dc.identifier.citationDundas, C.M. and Mellon, M.T. and Posiolova, L.V. and Miljković, K. and Collins, G.S. and Tornabene, L.L. and Rangarajan, V.G. et al. 2023. A Large New Crater Exposes the Limits of Water Ice on Mars. Geophysical Research Letters. 50 (2).
dc.identifier.urihttp://hdl.handle.net/20.500.11937/96130
dc.identifier.doi10.1029/2022GL100747
dc.description.abstract

Water ice in the Martian mid-latitudes has advanced and retreated in response to variations in the planet's orbit, obliquity, and climate. A 150 m-diameter new impact crater near 35°N provides the lowest-latitude impact exposure of subsurface ice on Mars. This is the largest known ice-exposing crater and provides key constraints on Martian climate history. This crater indicates a regional, relatively pure ice deposit that is unstable and has nearly vanished. In the past, this deposit may have been tens of meters thick and extended equatorward of 35°N. We infer that it is overlain by pore ice emplaced during temporary stable intervals, due to recent climate variability. The marginal survival of ice here suggests that it is near the edge of shallow ice that regularly exchanges with the atmosphere.

dc.languageEnglish
dc.publisherAMER GEOPHYSICAL UNION
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/FT210100063
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectGeosciences, Multidisciplinary
dc.subjectGeology
dc.subjectMars
dc.subjectice
dc.subjectsubsurface
dc.subjectmidlatitudes
dc.subjectclimate
dc.subjectSOUTHERN-HEMISPHERE
dc.subjectSUBSURFACE ICE
dc.subjectIMPACT CRATERS
dc.subjectNEAR-SURFACE
dc.subjectGROUND ICE
dc.subjectDEFORMATION
dc.subjectSUBLIMATION
dc.subjectDIFFUSION
dc.subjectGLACIERS
dc.subjectHYDROGEN
dc.titleA Large New Crater Exposes the Limits of Water Ice on Mars
dc.typeJournal Article
dcterms.source.volume50
dcterms.source.number2
dcterms.source.issn0094-8276
dcterms.source.titleGeophysical Research Letters
dc.date.updated2024-10-16T01:35:22Z
curtin.departmentSchool of Earth and Planetary Sciences (EPS)
curtin.accessStatusOpen access
curtin.contributor.researcheridMiljkovic, Katarina [D-4844-2013]
dcterms.source.eissn1944-8007
curtin.contributor.scopusauthoridMiljkovic, Katarina [35219281700]
curtin.repositoryagreementV3


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