If Earth's history were a calendar year, humans would not appear until the last few minutes before midnight on Dec. 31.

Earth surface is covered with rigid plates that move, crash into each other and dive into the planet's interior. But when did ...

All Earth Science students need to understand the origins, environments, and basic processes that produce igneous and metamorphic rocks. This concise introductory textbook provides students with the ...

It integrates a systematic account of the mineralogical changes accompanying metamorphism of the major rock types with discussion of the conditions and settings in which they formed. The use of ...

The Moine Schist, the puzzling old rock found on top of younger rock here, is called a metamorphic rock. Metamorphic rocks are created when other types of rock become very hot or are squeezed ...