Scientists have updated this image of Yellowstone volcano's underground magma chamber. Instead of two big yellow blobs, they have a clearer picture that looks like a knobby banana.<br />

Scientists have updated this image of Yellowstone volcano's underground magma chamber. Instead of two big yellow blobs, they have a clearer picture that looks like a knobby banana.<br />

The bottom of the volcano: Lurie stands in front of the wonderfully-coloured rocks. The extraordinary Thrihnukagigur is situated southeast of Reykjavik in Iceland hasn't gone off for 4,000 years.

The bottom of the volcano: Lurie stands in front of the wonderfully-coloured rocks. The extraordinary Thrihnukagigur is situated southeast of Reykjavik in Iceland hasn't gone off for 4,000 years.

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Fingels Cave in Scotland (apparently was misrepresented by name and location when I repinned it from another user.)

Fingels Cave in Scotland (apparently was misrepresented by name and location when I repinned it from another user.)

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Grímsvötn is a volcano in South-East Iceland. It is in the highlands of Iceland at the northwestern side of the Vatnajökull ice-cap. The caldera is at 64°25′N 17°20′W, at an elevation of 1,725 m (5,659 ft). Beneath the caldera is the magma chamber of the Grímsvötn volcano.

Grímsvötn is a volcano in South-East Iceland. It is in the highlands of Iceland at the northwestern side of the Vatnajökull ice-cap. The caldera is at 64°25′N 17°20′W, at an elevation of 1,725 m (5,659 ft). Beneath the caldera is the magma chamber of the Grímsvötn volcano.

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This picture show the magma chamber below Yellowstone. Computers show that there are no separate chambers and this chamber is much larger than previous beliefs. The magma chamber is the source of all the hydrothermal springs and geysers. According to researchers yellowstone erupted about 640,000 years ago making the caldera 30 by 40 miles wide. -- Caitlin Wolf

This picture show the magma chamber below Yellowstone. Computers show that there are no separate chambers and this chamber is much larger than previous beliefs. The magma chamber is the source of all the hydrothermal springs and geysers. According to researchers yellowstone erupted about 640,000 years ago making the caldera 30 by 40 miles wide. -- Caitlin Wolf

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Yellowstone national park: far below the Grand Prismatic hot spring a huge magma reservoir has been discovered beneath the previously known magma chamber.

Yellowstone national park: far below the Grand Prismatic hot spring a huge magma reservoir has been discovered beneath the previously known magma chamber.

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