Scientists discover new details about Yellowstone with a giant flying electromagnet

is a geologic feature that barely needs an introduction. Millions of visitors travel to this site every year to see bubbling mud cauldrons, crystal clear waters, and the brilliant colors of the Grand Prismatic Spring.

To find out, the team used a unique instrument called SkyTEM which is a large loop of wire towed below a helicopter. The loop's diameter was 80 feet and by sending electricity through it, the researchers created electromagnetic pulses that were sent towards the subsurface and received responses from electrically conductive bodies therein.

Since a helicopter can travel at speeds of 40-50 mph, the researchers were able to quickly survey large swaths of the 3,500-mile national park. The data they gathered consists of more than 2,500 miles of helicopter lines that not only look beneath the hydrothermal features in the park but also how these features are connected over great distances.Data captured by the team of scientists shows that the hot springs at the park are a result of the site's geology.

The new research also sheds light on different chemistries and temperatures that have been seen at different sites within the Park. While these were earlier thought to be a result of unknown deep processes, subsurface data from the site has shown that the differences are just a result of variations in the mixing of shallow groundwater. Interestingly, the data shows that hydrothermal systems in the Park that are up to six miles apart are also linked to each other.

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