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Shield volcano
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A shield volcano is a type of volcano named for its low profile, resembling a shield lying on the ground. It is formed by the eruption of highly fluid lava, which travels farther and forms thinner flo
Mauna Loa, a shield volcano in Hawaii
Mauna Loa, a shield volcano in Hawaii
An Ancient Greek warrior's shield—its circular shape and gently sloping surface, with a central raised area, is a shape shared by many shield volcanoe
An Ancient Greek warrior's shield—its circular shape and gently sloping surface, with a central raised area, is a shape shared by many shield volcanoes
ʻAʻa advances over solidified pāhoehoe on Kīlauea, Hawaiʻi
ʻAʻa advances over solidified pāhoehoe on Kīlauea, Hawaiʻi
A pāhoehoe lava fountain on Kīlauea erupts
A pāhoehoe lava fountain on Kīlauea erupts
Olympus Mons
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Olympus Mons is a large shield volcano on Mars. As measured by the Mars Orbiter Laser Altimeter, it is 21.287 kilometres high, about 2.5 times the elevation of Mount Everest above sea level. It is Mar
Shield volcano
…They include the largest active volcanoes on Earth, such as Mauna Loa. Giant shield volcanoes are found on other planets of the Solar System, including Olympus Mons on Mars and Sapas Mons on Venus. The term 'shield volcano' is taken from the German term Schildvulkan, coined by the Austrian geologist Eduard Suess…
Mars Global Surveyor image showing lava flows of different ages at the base of Olympus Mons. The flat plain is the younger flow. The older flow has la
Mars Global Surveyor image showing lava flows of different ages at the base of Olympus Mons. The flat plain is the younger flow. The older flow has lava channels with levees along the edges. Levees are quite common to lava flows on Mars.
Lava flows on Olympus Mons with older and younger flows labeled, as viewed by HiRISE during the HiWish program
Lava flows on Olympus Mons with older and younger flows labeled, as viewed by HiRISE during the HiWish program
Calderas on the summit of Olympus Mons. The youngest calderas form circular collapse craters. Older calderas appear as semicircular segments because t
Calderas on the summit of Olympus Mons. The youngest calderas form circular collapse craters. Older calderas appear as semicircular segments because they are transected by the younger calderas.
Oblique view of Olympus Mons, from a Viking image mosaic overlain on MOLA altimetry data, showing the volcano's asymmetry. The view is from the NNE; v
Oblique view of Olympus Mons, from a Viking image mosaic overlain on MOLA altimetry data, showing the volcano's asymmetry. The view is from the NNE; vertical exaggeration is 10×. The wider, gently sloping northern flank is to the right. The more narrow and steeply sloping southern flank (left) has low, rounded terraces, features interpreted as thrust faults. The volcano's basal escarpment is prominent.