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The Petermann Ranges were an impressive 9 kilometer high range formed by the collision of South Australia, with the Northern parts of it, some 550 million years ago. What occurred during this continent to continent collision was exactly the same as what occurred during the formation of the Himalayan Mountain Ranges, and thus, as a result of this, the height of this astonishing mountain range more or less reached the same height of the present day Himalayan Mountains. Erosion was disastrous to this primordial landscape, however, with no land plants existing to anchor the soils, the Petermann Ranges rapidly crumbled via erosion and weathering.
The byproducts of this, though, went on to form the incredible present day landmarks, known as Uluru and Kata Tjuta, which were derived from the alluvial fans that occurred on the slopes of the Petermanns.
Uluru (Ayer's Rock) and Kata Tjuta (The Olgas) are large and famous monolithic rocks that exist in the southern part of the Northern Territory in Central Australia. Both of these beautiful rocks owe their origin from the The Petermann Ranges, which was a mountain range that was as high as the Himalayas in its peak and was lengthwise similar to the whole Himalayan mountain range. As the Petermann Ranges eroded, large alluvial deposits formed, and at least two of these alluvial fans would, in time, become Uluru and Kata Tjuta in present day. In this video, I will cover how this came to be, and we will dive into how Uluru and Kata Tjuta formed.
Uluru was formally known as Ayres Rock and Kata Tjuta was known as The Olgas and the origin of both of these Australian landmarks is truly extraordinary, stretching for over 600 million years when the mountain that created these two landforms begun its existence.
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OzGeology is an Australian-based YouTube channel that specializes in creating high-quality documentaries on Earth sciences and natural disasters. The content is designed to be easy to digest and covers a wide range of topics, not only focusing on geology but occasionally exploring other scientific areas as well.
