Sedimentary rocks are formed by small rock pieces which are transported by rivers and laid down in layers. Chalk is a sedimentary rock. Metamorphic rocks are formed when another rock is under heat ...

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 ...

Find out more about available formats and browse any associated online resources. All Earth Science students need to understand the origins, environments, and basic processes that produce igneous and ...

The history of life on our planet is a long and winding path. Much of what we know about how life has evolved comes from fossils. The physical remains of organisms and the evidence of behaviors, such ...

Stewart's work has revealed evidence that carbon dioxide emitted by metamorphic rocks generated the insulating effect necessary for organisms to survive. "By studying the ways ancient geologic ...