They are usually resistant to weathering and erosion and are therefore very hard-wearing. Examples of metamorphic rocks include marble, which originates from limestone and slate, which originates ...

The layer was subsequently covered. Around 1.7 billion years ago, by then deep underground, the layer was transformed into schist (a hard metamorphic rock) through heat and pressure.

The Atlas of Minerals and Igneous and Metamorphic Rocks in Thin-section provides the geology student and geoscientist with a stunning new color atlas of the main rock-forming minerals and igneous and ...

There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such ...

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 ...

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 ...