Wednesday 9 January 2019

Purnululu National Park

The Purnululu National Park is particularly famous for the sandstone domes of the Bungle Bungle Range

Bungle Bungle Range
This postcard was sent by Penny

The 239,723 ha Purnululu National Park is located in the State of Western Australia. It contains the deeply dissected Bungle Bungle Range composed of Devonian-age quartz sandstone eroded over a period of 20 million years into a series of beehive-shaped towers or cones, whose steeply sloping surfaces are distinctly marked by regular horizontal bands of dark-grey cyanobacterial crust (single-celled photosynthetic organisms). These outstanding examples of cone karst owe their existence and uniqueness to several interacting geological, biological, erosional and climatic phenomena. - inhttp://whc.unesco.org/en/list/1094

Bungle Bungle Range
This postcard was sent by Penny

Bungle Bungle Range is the landform that is the major component of the Purnululu National Park in Western Australia.

Bungle Bungle Range
This postcard was sent from England by Miguel

The distinctive beehive-shaped towers are made up of sandstones and conglomerates (rocks composed mainly of pebbles and boulders and cemented together by finer material). These sedimentary formations were deposited into the Red Basin 375 to 350 million years ago, when active faults were altering the landscape. The combined effects of wind from the Tanami Desert and rainfall over millions of years shaped the domes. Weathering also helped create this marvel. Water seeps into the rock, and at night it expands as it gets colder. This creates small cracks which eventually wears out the rock. - in: wikipedia

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