Precambrian Sedimentary Environments - W Altermann - Bog

The motivation for this volume came from the idea that the Precambrian is the key, both to the present, and to the understanding of the Earth as a whole. The Precambrian constitutes about 85% of Eartha s history, and of that, about 3. 75 billion years of Precambrian time, represented by rocks, are accessible to geoscientists.