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Episode 1893             Episode 1895
Episode 1894

Mount Melbourne
Tue, 2022-Jul-12 00:07 UTC
Length - 2:27

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Welcome to featured Wiki of the Day where we read the summary of the featured Wikipedia article every day.

The featured article for Tuesday, 12 July 2022 is Mount Melbourne.

Mount Melbourne is a 2,733-metre-high (8,967 ft) ice-covered stratovolcano in Victoria Land, Antarctica, between Wood Bay and Terra Nova Bay. It is an elongated mountain with a summit caldera filled with ice with numerous parasitic vents; a volcanic field surrounds the edifice. Mount Melbourne has a volume of about 180 cubic kilometres (43 cu mi) and consists of tephra deposits and lava flows; tephra deposits are also found encased within ice and have been used to date the last eruption of Mount Melbourne to 1892 ± 30 CE. The volcano is fumarolically active.

The volcano is part of the McMurdo Volcanic Group, and together with The Pleiades, Mount Overlord, Mount Rittmann and the Malta Plateau forms a subprovince, the Melbourne volcanic province. The volcanism is related both to the West Antarctic Rift and to local tectonic structures such as faults and grabens. Mount Melbourne has mainly erupted trachyandesite and trachyte, which formed within a magma chamber; basaltic rocks are less common.

Geothermal heat flow on Mount Melbourne has created a unique ecosystem formed by mosses and liverworts that grow between fumaroles, ice towers, and ice hummocks. This type of vegetation is found at other volcanoes of Antarctica and develops when volcanic heat generates meltwater from snow and ice, thus allowing plants to grow in the cold Antarctic environment. These mosses are particularly common in a protected area known as Cryptogam Ridge within and south of the summit caldera.

This recording reflects the Wikipedia text as of 00:07 UTC on Tuesday, 12 July 2022.

For the full current version of the article, see Mount Melbourne on Wikipedia.

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This has been Emma Neural. Thank you for listening to featured Wiki of the Day.


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