Clay CliffsIn the middle of New Zealand’s South Island, near the tiny town of Omarama lies a hidden
Clay CliffsIn the middle of New Zealand’s South Island, near the tiny town of Omarama lies a hidden and widely unknown geological sight. Sharp pinnacles, ridges and narrow ravines make up the clay cliffs which are towering above the surrounding bush.The bizarre cliffs are made up of layers of gravel and silt that were deposited by rivers about a million years ago. These rocks of the Hawkdun Group sediments were uplifted and tilted along the so-called Ostler Fault Line. The Hawkdun Group sediments consist of coarsening-upward sandstone and conglomerate. This means that the grain size of the rocks increases from the lower lying layers to the higher layers of this group. After the uplift, these relatively soft sediments were subjected to natural erosion by wind and weather which gave them their present look.XandiSources: https://bit.ly/2NJSSVk https://bit.ly/2yjyENk http://www.waitakinz.com/explore/clay-cliffsImage Credits:https://bit.ly/2CL97k2https://bit.ly/2IWAUyd https://bit.ly/2CK9jjj -- source link
#new zealand#geology#sediment#sedimentary#erosion#ostler fault#moarama#travel#pinnacles#ravine