%0 Journal Article
%A Benito, G.
%A Mediavilla, F.
%A Márquez González, Álvaro
%A Martínez, J.
%A Anguita Virella, Francisco
%T Chasma Boreale, Mars: A Sapping and Outflow Channel with aTectono-thermal Origin
%D 1997
%@ 0019-1035
%U https://hdl.handle.net/20.500.14352/59054
%X 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 precededby 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 alsoother polar reentrants as well
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