It was found that the latest flow dated almost 50 million years back. When the Martian volcano Arsia Mons exploded long ago, it sent lava spewing out everywhere. Arsia Mons is one of the youngest volcanoes on Mars. Arsia Mons is located just south of the planet Mars’ equator and is part of the Tharsis Montes group together with Pavonis Mons and Ascraeus Mons. Arsia Mons is the southernmost of the Tharsis volcanoes. New NASA research reveals that the giant Martian volcano Arsia Mons produced one new lava flow at its summit every 1 to 3 million years during the final peak of activity. 0 comments. It’s a shield volcano, so named for its shape due to a very fluid lava that gets deposited farther than in other types of volcanoes that have a much denser lava. You can see it more fully in the context image to the right. These collapse features likely occur over lava tubes that served as conduits for flows from within the volcano. Scientists say the curious plume is not linked to volcanic activity, but forms as airflow is influenced by the side of the volcano that does not face the wind. It is 270 miles (450km) in diameter, almost 12 miles (20km) high, and the summit caldera is 72 miles (120km) wide. Arsia Mons, Pavonis Mons and Ascraeus Mons, are gigantic volcano triplets of a youthful age with evidence of recent volcanism (Hartmann et al., 1999). While Arsia Mons may be larger than any volcano on Earth, it pales in comparison to the largest volcano yet discovered in the solar system, Olympus Mons, which measures 22km (16mi) high. Please see the THEMIS Data Citation Note for details on crediting THEMIS images. As a result of this rather strange encounter it became known as the Arsia Mons Elongated Cloud and it was listed off as unexplained and unknown by the team of … Arsia Mons volcano in black and white The total height difference in the land surfaces in these scenes is about 7 kilometres, and some individual collapse pits have a depth of 2 kilometres. Adam Smith @adamndsmith. The massive extinct volcano that is home to the cloud is Arsia Mons, a 20 km high (12.4 miles) landmark on Mars’ surface. Mars is too cold for liquid water, so the cloud is made of water ice. The volcano was discovered by the Mariner 9 spacecraft in 1971, and was originally called Middle Spot. In the search for lost water on this planet the areas of most recent volcanic activity are probably most likely to reveal the still existing sources of water ice. The volcano Arsia Mons, located in the Tharsis region of Mars, was chosen as study region (Figure 1). Arsia Mons (ar -see-ă) A 14-km-high 400-km-wide volcano at the southern edge of the Tharsis Ridge of Mars.It is located just south of the Martian equator at the aerographic coordinates 8.4° S latitude, 121.1° longitude (see areography).It appears to be older than the other Tharsis volcanoes and has the largest summit caldera, 140 km across. They form a chain trending from northeast to southwest where Ascraeus Mons is northernmost and Arsia Mons is located at the south end of this chain (5 S–230 E). Two distinct levels (‘‘a’’ and ‘‘b’’) can be seen within this 1.0 km-high cliff section (top of cliff is towards Since it is also made up of water ice, this completely checks out the volcano as the possible culprit behind this cloud. Today’s VIS image is located on the lower flank of Arsia Mons. With the removal of this molten material, the volcano then collapsed at its opening (the top of its cone) to form a sunken volcanic crater known as a caldera. For comparison, the largest volcano on Earth is Mauna Loa. Dykes arrange in typical patterns within a given stress-field as e.g. Pavonis Mons is a large shield volcano located in the Tharsis region of the planet Mars. The plume above the Arsia Mons volcano on Mars. Click here for an annotated version of this image, which is via ESA. Mons, Pavonis Mons and Arsia Mons. These flows are located at … It’s made up of water ice, and while it may look like a smoke plume linked to volcanic activity, its airflow is directly influenced by the volcano’s ‘leeward’ slope, or the non wind-facing side. The item Geologic map of Arsia Mons Volcano, Mars, U.S. Department of the Interior, U.S. Geological Survey ; by David H. Scott and James R. Zimbelman ; prepared for the National Aeronautics and Space Administration represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in Indiana State Library. This image from NASA's 2001 Mars Odyssey spacecraft shows part of the southeastern flank of Arsia Mons, including the flat lying flows around the base of the volcano. This VIS image is located on the SE flank of Arsia Mons volcano where it meets the plains. regional dykes, The Visual Monitoring Camera (VMC) attached to Mars Express captured a mysteriously long, thin cloud over the 20 km (12 miles) high Arsia Mons volcano on July 17 and 19, 2020. Its name formally became Pavonis Mons in 1973. Image Credit: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO In 2018, when the news of the “oddly-shaped cloud” went viral, Dr. Tanya Harrison from NASA explained that the odd feature was not a plume of smoke, but rather water ice clouds condensing out over the summit of the Arsia Mons volcano. Image is located on the lower flank of Arsia Mons is the southernmost of planet. ( 270 mi ) high the largest volcano on Earth is Mauna Loa one of Tharsis... 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