: See this thread for background on this project: Moon Zoo ChallengeLocation
:Site: Montes Alpes, NW of Vallis Alpes (3.6W-1.4W, 48.9N-50.1N).Images
: Anthony Cook and Moon Zoo Forum Moderator: Jules, on 6 Jul 2010
: Dark slightly branching features, often on the shaded side of slopes. Boulders associated with these. Also appears as an exposed strata layer in a nearby rill rim.Interest
: Is this “dark stuff” an exposed dark material black volcanic glass, a deep branching crack with shadow, dark boulders, or a combination? Either way we need to find more of these and their geographical distribution. Could be worth monitoring these from orbit and at different sun angles to see if the darkness is related to shadow.
And a word of warning from Anthony:"Some of the LROC candidate small crater pits with black markings on the floors could equally be some of this black volcanic glass that was suggested for the "Black Stuff" that we found."
So make sure you check out those too.
Section of LROC NAC image M122218486RC. The Sun is 37° above the local horizon so there should not be too much shadow except in deep areas. Illumination is from the bottom right.
A wider field view of a section of LROC NAC image M122232056RC. Sun angle also 37° above the local horizon.
Please post any "black stuff" you find in this thread. Don't forget a picture, the strip reference (LROC / NAC reference) and the approximate latitude and longitude.