Story: Geology – overview

Bedding in Greenland Group (2nd of 2)

Bedding in Greenland Group

These steeply tilted beds of Greenland Group greywacke and argillite are exposed on the coast north of Greymouth. The beds are cut by almost vertical cleavage, which appears as closely-spaced cracks on the outcrop. Geologists can measure the angle between the bedding and cleavage to analyse the way that the rocks have been deformed.

Using this item

Private collection
Photograph by Judith Nathan

This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.

All images & media in this story

How to cite this page:

Eileen McSaveney and Simon Nathan, 'Geology – overview - New Zealand’s oldest rocks', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/photograph/8299/bedding-in-greenland-group (accessed 27 September 2021)

Story by Eileen McSaveney and Simon Nathan, published 12 Jun 2006