Enfield dikes

The dikes seen here are basaltic in nature, and are one of the best inland exposures of igneous dikes in the Ōamaru region and belong to the wider Waiareka Volcanic group.

These are located behind the village of Enfield in a disused quarry which has more recently been used as a landfill site. This site is fenced off to the public. You can however view the Geosite from behind the gates.


The quarry exposes several near-vertical dikes. Dikes are formed when volcanic activity pushes magma up through a crack or a weakness in the crust. This magma cuts across older material and cools in place as an igneous intrusion (i.e. it cools and ‘sets’ below the surface).



Follow the Weston-Ngapara Rd from Weston towards Enfield for 6km. Just before the township of Enfield, park your car in the parking bay on the left and follow the signage.

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