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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).
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 ...
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]
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 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 ...
Ross, a captain of the Royal Navy, commanded HMS Erebus.Its sister ship, HMS Terror, was commanded by Ross' close friend, Captain Francis Crozier. [4]The botanist Joseph Dalton Hooker, then aged 23 and the youngest person on the expedition, was assistant-surgeon to Robert McCormick, and responsible for collecting zoological and geological specimens.
Fumarolic ice tower on Mount Erebus. A fumarolic ice tower is a tower of ice produced by fumaroles of volcanic activity in an environment whose ambient temperature is below the freezing point of water. They are often underlain by large ice caves. Mount Erebus, the world's southernmost active volcano, is one producer of these ice towers. The ...