Recent study by group of Australia scientist from Australian National University and the Queensland University of Technology. They claimed formation of the two mountain ranges on the Earth, also known as Supermountains, the first between 2 and 1.8 billion years ago and the second between 650 and 500 million years ago. They are three to four times larger than the Himalayas.
The research was published in 15 February issue of journal ‘Earth and Planetary Science Letters’. Researchers claimed formation and destruction of these ranges contributed in biggest evolutionary boom.
Ziyi Zhu, a PhD student from Australian National University who is author of research said, “There’s nothing like these two supermountains today. It is not just their height, if you can imagine the 1500 miles (2,400km) long Himalayas repeated three or four times, you get an idea of scale.” Scientists have used low lu- zircons for documenting.
Mountain are formed when Earth’s ever shifting tectonic plates collide with each other and pushing surface rocks up. They grow for millions of years but they also become extinct due to various erosional works by wind, water and other natural forces.
These mountain resulted in high rates of erosion and sedimentation. They increased supply of phosphorus and iron to Ocean helping in biological cycle and evolution process.Erosion may have increased atmospheric O² and nutrient level.
Nuna supermountain discovery is new. It divided the super continent in two parts. Prior studies have suggested Transgondwanan supermountain, stretching over parts of Gondwana land(Africa, South America, Australia, Antartica, Indian subcontinent and Arabian peninsula).