Kondyor Massif, Khabarovsk Krai, Russia, composite satellite image. This circular rock formation is called an intrusion. It forms when the molten magma of igneous rock crystallises below the Earth's surface and is slowly pushed up through the mantle, a process that can take over a billion years. The Kondyor Massif intrusion has slowly made its way through over 8000 km of mantle and is now visible on the surface of the Earth.

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Size: 3200px × 3200px
Location:
Photo credit: © GSFC/METI/ERSDAC/JAROS & ASTER Science Team & NASA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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