The basalt which makes up the Giant’s causeway is an igneous rock. Sedimentary rocks are formed by small rock pieces which are transported by rivers and laid down in layers. Chalk is a ...

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 ...

Different plate tectonic settings produce distinctive basin environments where sedimentary rocks are deposited. Download a chart to use in class and an activity for practicing with these concepts: ...

This ocean is entirely gone today, although the sedimentary rocks that settled on its ocean floor and the volcanoes that fringed its edges remain to tell the tale of its existence. To understand ...