Thursday, 18 April 2013

Unusual rock in Australia

 Unusual rocks - one of the most famous symbols of Kangaroo Island in Australia. They rise up to 60 meters above the crashing waves at Flinders Chase National Park, on the western side of Kangaroo Island. This collection of huge granite boulders, erosion corroded, that rise above the lava dome. The shape of the boulders gave wind, rain and sea water for over 500 million years. Golden-orange lichen covering some of the stones, and a variety of forms offer visitors plenty of opportunities for photos at any time of the day. Rocks are composed of granite, which appeared in the Earth's crust during the Ordovician Period, about 500 million years ago.

While Kangaroo Island was part of the Gondwana - the supercontinent in the southern hemisphere, which also includes Australia, South America, Africa, India and Antarctica. About 150 million years ago, Gondwana began to divide exists now continents. Australia moved to the north, and along with it the Ordovician granite. After a pre-formed slots and some important wear minerals such as feldspar and mica, the process of deterioration. A further erosion of the wind in such a relatively dry climate like this has led to the bizarre rock formations.

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