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oai:docta.ucm.es:20.500.14352/590542024-07-16T15:29:44Zcom_20.500.14352_14col_20.500.14352_15

Chasma Boreale, Mars: A Sapping and Outflow Channel with a Tectono-thermal Origin Benito, G. Mediavilla, F. Márquez González, Álvaro Martínez, J. Anguita Virella, Francisco A detailed geomorphological study of Chasma Boreale, a widely known feature of Mars’ north polar cap, has been carried out for the first time, along with a quantitative paleohydro logical model. It is concluded that the chasma was eroded by a flow whose discharge was on the order of magnitude of 109 m sec21. This catastrophic flow is thought to have been preceded by a powerful sapping process, caused by a tectonic control in the distribution and present aspect of most of the polar troughs. This tectonic forcing probably played a major role in the inception of not only Chasma Boreale but also other polar reentrants as well 2023-06-20T18:59:19Z 2023-06-20T18:59:19Z 1997 journal article 0019-1035 ARTICLE NO. IS975771 https://hdl.handle.net/20.500.14352/59054 http://www.journals.elsevier.com/icarus/ eng open access Elsevier Science B.V., Amsterdam