New research has revealed that the Ninetyeast Ridge -- the Earth's longest straight underwater mountain chain -- formed through a different process than previously believed.
New research has revealed that the Ninetyeast Ridge -- the Earth's longest straight underwater mountain chain -- formed through a different process than previously believed. Stretching 5000 km along the Indian Ocean's 90-degree east longitude and nearly matching the length of North America's Rocky Mountains, the ridge offers crucial new insights into the movement of the Earth's tectonic plates.
Co-author Dr Hugo Olierook from Curtin's School of Earth and Planetary Sciences said high-precision dating of minerals extracted from the ridge shows it formed between 83 and 43 million years ago as a massive volcanic chain, with its oldest sections in the north, near India. This discovery not only revises the estimated age and origin of the ridge but also helps scientists to create more accurate models of how Earth's tectonic plates have shifted over millions of years.
"By using high-precision dating we can refine these models significantly, leading to better insights into ancient continental movements."
Natural Disasters Earth Science Earthquakes Near-Earth Object Impacts Volcanoes Geography Tsunamis
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