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 ...

There are three main types of rock — igneous, sedimentary and metamorphic — with varying mineral mixes depending on where and how the rock came to be. Igneous rocks — which form as magma ...

If an organism completely dissolves in sedimentary rock, it can leave an impression ... sediments or inorganic material — seems to be the best type of environment for preserving organic material ...

This is a beginner's guide to identifying UK rock types. The guide has two main sections ... of rock samples commonly found in the United Kingdom, detailing igneous, sedimentary and metamorphic rocks ...