Comment on "Athabasca Valles, Mars: a lava-draped channel system".
نویسنده
چکیده
Jaeger et al. (Reports, 21 September 2007, p. 1709) presented images of the Athabasca Valles channel system on Mars and asserted that the observed deposits are composed of thin, fluid lavas. However, all the features they described are secondary and postdate the surface by many millions of years, as documented by structural relationships with small, young impact craters.
منابع مشابه
Athabasca Valles, Mars: a lava-draped channel system.
Athabasca Valles is a young outflow channel system on Mars that may have been carved by catastrophic water floods. However, images acquired by the High-Resolution Imaging Science Experiment camera onboard the Mars Reconnaissance Orbiter spacecraft reveal that Athabasca Valles is now entirely draped by a thin layer of solidified lava-the remnant of a once-swollen river of molten rock. The lava e...
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ورودعنوان ژورنال:
- Science
دوره 320 5883 شماره
صفحات -
تاریخ انتشار 2008