USGS IMAP 996: Geologic map of the Arabia Quadrangle of Mars

The Arabia quadrangle is located in the northern hemisphere of Mars; it extends 30˚ N. from the equator and 45˚ E. from the prime meridian. It is within the area of unmantled terrain defined by Soberblom and others (1973) and the planet-encircling band of old cratered deposits shown on the preliminary geologic map of Mars (Carr and others, 1973). Crater density in the Arabia quadrangle...