What do you think the origin of the broad, flat surface is above the coastal cliffs shown below?2/23/2024 "Our research raises the possibility that the opposite happens on Mars a plume might move beneath the stationary crust." "On Earth, the Hawaiian islands were built from volcanoes that erupted as the Earth's crust slid over a hot spot - a plume of rising magma," said Jacob Bleacher, a planetary scientist at Arizona State University and NASA's Goddard Space Flight Center in Greenbelt, Md, told. As such, Olympus Mons may still be an active volcano with the potential to erupt. Although it has taken billions of years to form, some regions of the mountain may be only a few million years old, relatively young in the lifetime of the solar system. Olympus Mons is still a relatively young volcano. (The cliff alone is about as tall as Mauna Loa.) A wide depression surrounds the base of the volcano as its immense weight presses into the crust. As magma chambers beneath the calderas emptied of lava, most likely during an eruption, the chambers collapsed, no longer able to support the weight of the ground above.Ī cliff, or escarpment, surrounds the outer edge of the volcano, reaching as high as 6 miles (10 km) above the surrounding area. Six collapsed craters, known as calderas, stack on top of one another to create a depression at the summit that is 53 miles wide (85 km). Related: Origins, variants and eruptions of space volcanoes This raises the intriguing possibility that the volcano is still active, and may erupt again in the future. This indicates that the uppermost layer of lava is relatively young, with the last eruption occurring as recently as 25 million years ago. When compared to Martian terrain in general, there aren't many impact craters on Olympus Mons' surface. The black outline of Arizona over this image of Olympus Mons shows the similar surface areas.
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