Publisher's Synopsis
This work deals separately with different regions of Mars - such as the ancient cratered highlands, the volcanic plains and the polar regions.;He then demonstrates how the development of each is part of a gradual evolutionary process that included: an early bombardment of the ancient crust, subsequent development of rivers and streams (even shallow oceans), widespread volcanism, periglacial activity, and Martian winds. This story concludes with a detailed summary of the planet's geological development as scientists now believe it to have occurred.