5/12/2023 0 Comments Yellow stone flood basaltsOne of these is Old Faithful, Yellowstone National Park's famous geyser, which has erupted jets of boiling water every 44 to 125 minutes into the air continuously for the last 800 years.Įrupting an average of 130 feet into the air at 200☏ the thermal attraction could prove fatal to anyone in close proximity when it blows. ![]() 'As hot material rises buoyantly, it decompresses and melts near the surface, generating magma that feeds the magma chambers beneath Yellowstone and provides the heat that powers the many geysers and hot springs.' 'This hotspot is powered by a plume of hot (but not molten) material that may extend as deep as the boundary between the planet's mantle and core,' the USGS experts explain. The park sits above a melting anomaly within the Earth, called a 'hotspot'. Yellowstone National Park (indicated here in red) spans 8,991 square kilometres, largely in the northwest corner of Wyoming but extending into Montana and Idaho It's already known Yellowstone hotspot has moved over the course of millions of years due to the ever-shifting tectonic plates, but its traces even further afield than previously thought vastly pushes back its possible date of origin. The geologists claim there are chemical and physical traces of Yellowstone hotspot in the ocean waters of the Pacific Northwest many hundreds of miles away. ![]() 'A growing volume of geological evidence', however, suggests Yellowstone hotspot has been around much longer – at least 50 million years and maybe even earlier, US experts now reveal. This includes one of the park's most famous geothermal features, the Old Faithful geyser, which spews jets of boiling water every 44-125 minutes, as well as the Yellowstone Caldera, a dormant 'supervolcano'. It's responsible for Yellowstone National Park's famous volcanic activity that draws swarms of tourists from around the world. Known as Yellowstone hotspot, this vast volcanic system has long been thought to have initiated about 17 million years ago. The source of heat that powers the volcanic system of Yellowstone National Park in the western US dates back to at least 50 million years ago, scientists say.
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