Memnonia quadrangle

Memnonia quadrangle
Elevation map of Memnonia quadrangle from Mars Orbiter Laser Altimeter (MOLA) data.
Coordinates15°00′S 157°30′W / 15°S 157.5°W / -15; -157.5

The Memnonia quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Memnonia quadrangle is also referred to as MC-16 (Mars Chart-16).

The quadrangle is a region of Mars that covers latitude -30° to 0° and longitude 135° to 180°. The western part of Memnonia is a highly cratered highland region that exhibits a large range of crater degradation.

Memnonia includes the Arcadia Planitia, Amazonis Planitia, Lucus Planum, Terra Sirenum, Daedalia Planum, and Terra Cimmeria regions.

Many ancient river valleys including Mangala Vallis, have been found in the Memnonia quadrangle. Mangala appears to have begun with the formation of a graben, a set of faults that may have exposed an aquifer.

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