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Olympus Mons (/ ə ˌ l ɪ m p ə s ˈ m ɒ n z, ... It last erupted 25 million years ago. [9] Olympus Mons is the youngest of the large volcanoes on Mars, ...
However, the largest volcano on the planet, Olympus Mons, is thought to have formed when the plates were not moving. Olympus Mons may have formed just after the plate motion stopped. The mare-like plains on Mars are roughly 3 to 3.5 billion years old. [72] The giant shield volcanoes are younger, formed between 1 and 2 billion years ago.
Olympus Mons and its associated lava flows and aureole deposits form another distinct subprovince of the Tharsis region. This subregion is about 1,600 kilometres (990 mi) across. It lies off the main topographic bulge, but is related to the volcanic processes that formed Tharsis. [10] Olympus Mons is the youngest of the large Tharsis volcanoes.
The three Tharsis Montes volcanoes are enormous by terrestrial standards, ranging in diameter from 375 km (233 mi) (Pavonis Mons) to 475 km (295 mi) (Arsia Mons). [1] Ascraeus Mons is the tallest with a summit elevation of over 18 km (59,000 ft), [ 2 ] or 15 km (49,000 ft) base-to-peak.
The main part of Tamu's rounded dome extends over an area of 450 km × 650 km (280 mi × 400 mi), totaling more than 292,500 km 2 (112,900 sq mi), many times larger than Mauna Loa, which has an area of 5,000 km 2 (1,900 sq mi), and about half the area of the Martian volcano Olympus Mons. [a] The entire mass of Tamu consists of basalt.
Animation of eruption from Tvashtar Paterae (Io), taken from imagery from the New Horizons probe in 2007 Lava flow at Tvashtar Paterae. Io, a moon of the planet Jupiter, is the most volcanically active body in the Solar System. [1] Its volcanoes are believed to eject sulfur and sulfur dioxide, as well as basaltic and ultramafic silicate lavas. [2]
Tharsis is a land of great volcanoes. Olympus Mons is the tallest known volcano in the Solar System; it is 100 times larger than any volcano on Earth. Ascraeus Mons and Pavonis Mons are at least 200 miles across and are over six miles above the plateau that they sit on—and, the plateau is three to four miles above the zero altitude of Mars. [4]
Olympus Mons (Latin, "Mount Olympus"), located on the planet Mars, is the tallest known mountain in the Solar System. (from Volcanism ) Image 42 A gentle, or effusive , volcanic eruption, in which liquid material (lava) gently flows from a vent, in this case in south-eastern Hawai’i island (from Volcanism )