North Polar "Unconformity" (Original NASA/MGS/MSSS b/w Frame)

Caption NASA originale:"This MGS-MOC image shows layered material exposed on a slope in the North Polar Region.
An "unconformity" is visible in the middle/lower left of the image, where layers are abruptly truncated. Unconformities are indicators of drastic change in the Region � the lower layers were deposited first, then eroded, then the upper layers were deposited".

Location near: 81,1� North Lat. and 75,2� West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring