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dc.contributor.authorRodriguez, J. Alexis P.
dc.contributor.authorFairén, Alberto G.
dc.contributor.authorTanaka, Kenneth L.
dc.contributor.authorZarroca, Mario
dc.contributor.authorLinares, Rogelio
dc.contributor.authorPlatz, Thomas
dc.contributor.authorKomatsu, Goro
dc.contributor.authorMiyamoto, Hideaki
dc.contributor.authorKargel, Jeffrey S.
dc.contributor.authorYan, Jianguo
dc.contributor.authorGulick, Virginia
dc.contributor.authorHiguchi, Kana
dc.contributor.authorBaker, Victor R.
dc.contributor.authorGlines, Natalie
dc.date.accessioned2016-06-29T00:29:59Z
dc.date.available2016-06-29T00:29:59Z
dc.date.issued2016-05-19
dc.identifier.citationRodriguez, J. A. P. et al. Tsunami waves extensively resurfaced the shorelines of an early Martian ocean. Sci. Rep. 6 , 25106; doi: 10.1038/srep25106 (2016).en
dc.identifier.issn2045-2322
dc.identifier.doi10.1038/srep25106
dc.identifier.urihttp://hdl.handle.net/10150/614978
dc.description.abstractIt has been proposed that similar to 3.4 billion years ago an ocean fed by enormous catastrophic floods covered most of the Martian northern lowlands. However, a persistent problem with this hypothesis is the lack of definitive paleoshoreline features. Here, based on geomorphic and thermal image mapping in the circum-Chryse and northwestern Arabia Terra regions of the northern plains, in combination with numerical analyses, we show evidence for two enormous tsunami events possibly triggered by bolide impacts, resulting in craters similar to 30 km in diameter and occurring perhaps a few million years apart. The tsunamis produced widespread littoral landforms, including run-up water-ice-rich and bouldery lobes, which extended tens to hundreds of kilometers over gently sloping plains and boundary cratered highlands, as well as backwash channels where wave retreat occurred on highland-boundary surfaces. The ice-rich lobes formed in association with the younger tsunami, showing that their emplacement took place following a transition into a colder global climatic regime that occurred after the older tsunami event. We conclude that, on early Mars, tsunamis played a major role in generating and resurfacing coastal terrains.
dc.description.sponsorshipFunding for JAPR was provided by NASA’s Planetary Geologic and Geophysics Program, NASA NPP and KAKENHI 25120006. KLT was also funded by NASA’s Planetary Geologic and Geophysics Program. AGF was supported by the Project “icyMARS”, funded by the European Research Council, Starting Grant No. 307496. TP was supported by a DFG Grant (PL613/2-1). VCG was funded by MRO HiRISE Co-Investigator funds. HM was funded by KAKENHI 25120006. Publications costs were covered by the Project “icyMARS”, funded by the European Research Council, Starting Grant No. 307496. We are thankful to Alexander Cox for his valuable editing.en
dc.language.isoenen
dc.publisherNATURE PUBLISHING GROUPen
dc.relation.urlhttp://www.nature.com/articles/srep25106en
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License.en
dc.titleTsunami waves extensively resurfaced the shorelines of an early Martian oceanen
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Dept Hydrol & Water Resourcesen
dc.identifier.journalScientific Reportsen
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
refterms.dateFOA2018-09-11T14:03:05Z
html.description.abstractIt has been proposed that similar to 3.4 billion years ago an ocean fed by enormous catastrophic floods covered most of the Martian northern lowlands. However, a persistent problem with this hypothesis is the lack of definitive paleoshoreline features. Here, based on geomorphic and thermal image mapping in the circum-Chryse and northwestern Arabia Terra regions of the northern plains, in combination with numerical analyses, we show evidence for two enormous tsunami events possibly triggered by bolide impacts, resulting in craters similar to 30 km in diameter and occurring perhaps a few million years apart. The tsunamis produced widespread littoral landforms, including run-up water-ice-rich and bouldery lobes, which extended tens to hundreds of kilometers over gently sloping plains and boundary cratered highlands, as well as backwash channels where wave retreat occurred on highland-boundary surfaces. The ice-rich lobes formed in association with the younger tsunami, showing that their emplacement took place following a transition into a colder global climatic regime that occurred after the older tsunami event. We conclude that, on early Mars, tsunamis played a major role in generating and resurfacing coastal terrains.


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