Mathematics – Logic
Scientific paper
Apr 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pggp.rept..188f&link_type=abstract
In NASA. Washington Rept. of Planetary Geol. Programs p 188-190 (SEE N84-23431 13-91)
Mathematics
Logic
4
Landforms, Mars (Planet), Mars Surface, Topography, Aquifers, Ice, Mars Photographs, Mars Volcanoes, Melting, Photointerpretation, Streams, Surface Water, Viking Spacecraft
Scientific paper
High-resolution pictures of talus slopes on Mars show small, dark streaks that characteristically widen downward. These streaks are different from the thin and even streaks of various albedos that stream from cliffs on talus slopes, but gradations between the two streak types occur and not all streaks can be classified with confidence. In order to study the nature and origin of the small, widening, dark streaks, all Viking pictures with a resolution of less than 100 m/pixel were surveyed. To date several hundred streaks were located, but only few are of high enough resolution to be confidently identified as widening downwards. The approximate dimensions of the streaks were measured and their shapes, numbers, position, and spacing on slopes were noted. They were plotted on a topographic map, and their relation to topography, geologic units, and regions of distinct thermal inertia and albedo were studied. Also noted was the season at which images containing streaks were acquired and the direction of illumination. Albedo measurements are in progress. Several streaks can be seen stereoscopically, but none are observed on color images. The observation of small dark streaks on talus slopes on Mars is compatible with an interpretation of their origin as eruptions of small masses of wet debris in places where steep walls intersect aquifers or where seasonal equatorial warming permits the local melting of ground ice.
Ferguson H. M.
Lucchitta Baerbel Koesters
No associations
LandOfFree
Dark streaks on talus slopes, Mars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dark streaks on talus slopes, Mars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dark streaks on talus slopes, Mars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1501309