Kōrero: Rock, limestone and clay

Limestone cliffs, Waitomo (2 o 3)

Limestone cliffs, Waitomo

Limestone is slightly soluble in water. Over millions of years it is dissolved by rain, which has absorbed carbon dioxide from the atmosphere, forming a very weak acid. This results in strange outcrops known as karst. The cliffs at Waitomo in the King Country show a distinct weathering pattern, or fluting, caused by surface water slowly dissolving the rock into little valleys. This type of outcrop is also prominent in the Tākaka valley on the road to Golden Bay, near Nelson.

Te whakamahi i tēnei tūemi

GNS Science
Reference: CN33052/11
Photograph by Lloyd Homer

Permission of GNS Science must be obtained before any use of this image.

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Carl Walrond, 'Rock, limestone and clay - Limestone', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/photograph/5224/limestone-cliffs-waitomo (accessed 28 May 2024)

He kōrero nā Carl Walrond, i tāngia i te 12 Jun 2006