Find it at Geevor:

View map of the site

Related to:

Rock types at Geevor

Rocks

Cornish Geology

The Rock Cycle: how rocks are formed

Link to Workshops:

Click here

Downloads:

The Rock Cycle.pdf

The Rock Cycle

The Earth’s rocks do not stay the same forever. 

They are always changing. Rocks are constantly being formed, changing type and wearing away in a continuous cycle. Rocks are eroded by the weather and worn away by running water, ice, wind, waves, plants and people. Mountains and hills are gradually broken down or eroded into tiny grains. These grains are washed into the sea, compacted together, heated or compressed deep underground and turned back into rock again. The rocks are being gradually recycled over millions of years.

 

Photograph reproduced with the kind permission of the Geevor Archive