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Oldest at the bottom

Geologist working below a cliff near Whanganui, New Zealand.

The geologist working below this cliff near Whanganui uses the principle of superposition to work out that the bottom layer is the oldest, the top layer is the youngest.

Glossary

Rights: The University of Waikato Te Whare Wānanga o Waikato
Published: 11 May 2011Updated: 2 April 2025Size: 5.95 MB
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