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Mount Erebus (/ ˈ ɛr ɪ b ə s /) is the southernmost active volcano on Earth, located on Ross Island in the Ross Dependency in Antarctica.With a summit elevation of 3,792 metres (12,441 ft), it is the second most prominent mountain in Antarctica (after Mount Vinson) and the second-highest volcano in Antarctica (after the dormant Mount Sidley).
Only two flowering plants inhabit continental Antarctica, the Antarctic hair grass (Deschampsia antarctica) and the Antarctic pearlwort (Colobanthus quitensis). Both are found only on the western edge of the Antarctic Peninsula and on two nearby island groups, the South Orkney Islands and the South Shetland Islands. [3]
David Senchina notes that Hooker was the first botanist to set foot on Antarctica, in 1840; the first sighting of a plant on the continent was only a few years earlier, namely A. Young's observation of Deschampsia antarctica (Antarctic hair grass) in 1819, from HMS Andromache, and the first plant specimen from an Antarctic island had been ...
Satellite picture showing the lava lake of Mount Erebus, Antarctica. Aerial view of a lava lake in Pu’u ’Ō’ō crater, east rift zone of Kīlauea. The crater is about 820 ft (250 m) in diameter. Aerial view of a lava lake atop the Kūpaʻianahā vent on the east rift zone of Kīlauea volcano.
The Erebus hotspot is a volcanic hotspot responsible for the high volcanic activity on Ross Island in the western Ross Sea of Antarctica. Its current eruptive zone, Mount Erebus, has erupted continuously since its discovery in 1841. Magmas of the Erebus hotspot are similar to those erupted from hotspots at the active East African Rift in ...
Deschampsia antarctica at Collins Glacier, Antarctica. This species is one of only two flowering plants native to Antarctica, the other one being the Antarctic pearlwort (Colobanthus quitensis). Antarctica's extant flora presently consists of around 100 mosses, 25-30 liverworts, and around 700 terrestrial and aquatic algal species.
Tramway Ridge is a ridge that rises to about 3450 m above sea level in the north-west part of the summit caldera of Mount Erebus on Ross Island, Antarctica. The ridge is formed by the levees (banks) on the side of a young lava flow. The appearance of the feature is suggestive of a set of railway or tram lines.
The area is a square of 200 m by 200.8 m, encompassing most of the warm ground area of lower Tramway Ridge. The area is divided into two parts of almost equal size, the northern half being a prohibited zone. Mount Erebus provides one of only three known high-altitude areas of fumarolic activity and associated vegetation in the Antarctic.