THIS account of the geological history of North America ... believes that a knowledge of the major events in the history of the earth should be part of a liberal education. Since a new edition ...
Its central theme is an illuminating hypothesis, according to which the radioactivity of the rocks has been the dominant influence in controlling geological history. The search for adequate causes ...
The world's oldest rocks are spread across the globe and paint a picture of Earth's turbulent early history. Here are some of the most notable and important formations scientists have discovered.
Everything has its pecking order, and geology is no exception ... since the Triassic began. The history of man is but an eyeblink compared with that of Earth, and humans will eventually pass.