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Little Barrier Island

Little Barrier Island, an extinct andesite cone.

An extinct andesite cone. The lava was thick so it formed a steep-sided cone, which has been weathered over time to form the present shape of the island. Last erupted between 1 and 3 million years ago.

Acknowledgement: Dick Veitch

Glossary

Rights: Dick Veitch
Published: 12 July 2017Size: 52.16 KB
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