Coloured cliff face

I'd love to know the geology of this fascinating area.What's the orange stuff. The lower part of the cliff face would be under water at high tide. Any ideas out there?
Whitecliffs area, West Coast, North Island, new Zealand. File# 280058; Photographer: Christine



more New Zealand Pictures  | more Pukearuhe pictures  | pictures of New Zealand's thermal areas
   Coromandel pictures  |    South Island pictures |    siteindex

Please enjoy browsing our pictures of the remote and unusually beautiful west coast area area known as Pukearuhe.
See here
for information regarding use of these pictures. JustOurPictures.com, Stock Photography