Chapter 8 Rocks And Mining

Factors that cause erosion Some examples are: -water -wind -gravity -ice

The top layer of the mantle, composed of ‘plastic’ rock

Sedimentary rock formed mainly from dead organisms

Living things and their products breaking down rock

Natural chemicals found in water that can bind sediments together

Sedimentary rock that forms when dissolved materials precipitate from solution

Water, or chemicals in water or air, reacting and breaking down rock

Sedimentary rock formed mainly from small rock particles

A type of metamorphism where rock is altered mostly by heat

The innermost layer of the earth

The outermost layer of the earth, composed of solid rock

The settling of broken rock material to form sediments

A type of metamorphism where rock is altered mostly by pressure

Use of an electric current to extract minerals from solution

Removal of weathered rock particles from the site of the weathering

The chemical process of separating metals from the compounds in which they occur

Igneous rock that forms on the surface of the earth

Light coloured rocks

A process where minerals under pressure realign and the rock develops layers or bands

Any interaction that will change the motion of an object when unopposed. For example a push or a pull

The preserved remains of living organisms

A process for extracting material from water (and chemicals) by producing air bubbles which the material sticks to and floats

The study of rocks, their history and the processes that form and change them

Superheated fluids that circulate through the earths crust, picking up minerals such as gold