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> Old impact crater on Mars

Old impact crater on Mars

author: Nasa/JPL/MSSS/Novapix

reference: a-mar06-00020

Image Size 300 DPI: 40 * 50 cm

This old meteor impact crater in northwestern Schiaparelli Basin exhibits a spectacular view of layered, sedimentary rock. The 2.3 kilometer (1.4 miles) wide crater may have once been completely filled with sediment; the material was later eroded to its present form. The uniform physical properties and bedding of these layers might indicate that they were originally deposited in a lake (it is possible that the crater was at the bottom of a much larger lake, filling Schiaparelli Basin); alternatively, the layers were deposited by settling out of the atmosphere in a dry environment. This picture was acquired on June 3, 2003, and is located near 0.9°S, 346.2°W. False colors.

Keywords for this photo:

2003 - ASTRONOMY - CRATER - IMPACT CRATER - MARS - MARS GLOBAL SURVEYOR - PLANET - POSTER - SCHIAPARELLI -