Mountains In The Middle Of Nicholson Crater, Mars
Clicky-2 ESA - Mars Express - Nicholson Crater on Mars
-- Oops! Guess you can't post direct links to photos on the Net....... :)
Instead go to this new link, and scroll down to the photo that is next to last.
Click on the roughly 300K photo. That is the one I am discussing below.
Although the origins of the erosion in this computer-generated photo haven't been established with 100% certainty --- this photo just screams to me of ancient snow-capped peaks on Mars. I don't think wind blown erosion caused this, nor do I think artesian wells of water sprouted on the mountains.
To me, the strips or small rivulets that sort of parallel, imaginary contour lines drawn on the right side of the largest peak in this photo, might have been created as the sun melted the snow pack on the mountain. The rivulets would mark the edge of the pack as it retreated down the shoulder of the mountain, on the right side. This interface between the mountain and the snow pack, would be where the sun heated the soil the most, (in relation to the reflective snow itself), and created a melt at the interface. Other slow melt water coming off the top of the snow, could migrate down the pack to this edge.
Instead go to this new link, and scroll down to the photo that is next to last.
Click on the roughly 300K photo. That is the one I am discussing below.
Although the origins of the erosion in this computer-generated photo haven't been established with 100% certainty --- this photo just screams to me of ancient snow-capped peaks on Mars. I don't think wind blown erosion caused this, nor do I think artesian wells of water sprouted on the mountains.
To me, the strips or small rivulets that sort of parallel, imaginary contour lines drawn on the right side of the largest peak in this photo, might have been created as the sun melted the snow pack on the mountain. The rivulets would mark the edge of the pack as it retreated down the shoulder of the mountain, on the right side. This interface between the mountain and the snow pack, would be where the sun heated the soil the most, (in relation to the reflective snow itself), and created a melt at the interface. Other slow melt water coming off the top of the snow, could migrate down the pack to this edge.
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