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Geologic map of South America Geologic map of South America
No abstract available.
Geologic map of the Arabia Quadrangle of Mars 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...