The Marlborough Sounds, at the north-eastern end of the South Island, is a mountainous area that is now subsiding. The land is slowly sinking, and river valleys are becoming drowned by the sea. Because the land is sinking, either beaches have not formed, or they are at best very narrow.
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GNS Science
Reference:
CN15225/26
Photograph by Lloyd Homer
Permission of GNS Science must be obtained before any use of this image.
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