Hudson Mountains in the context of "Ellsworth Land"

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⭐ Core Definition: Hudson Mountains

The Hudson Mountains are a mountain range in western Ellsworth Land just east of Pine Island Bay at the Walgreen Coast of the Amundsen Sea. They are of volcanic origin, consisting of low scattered mountains and nunataks that protrude through the West Antarctic Ice Sheet. The Hudson Mountains are bounded on the north by Cosgrove Ice Shelf and on the south by Pine Island Glacier. The mountains were volcanically active during the Miocene and Pliocene, but there is evidence for an eruption about two millennia ago and uncertain indications of activity in the 20th century.

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👉 Hudson Mountains in the context of Ellsworth Land

Ellsworth Land is a portion of the Antarctic continent bounded on the west by Marie Byrd Land, on the north by the Bellingshausen Sea, on the northeast by the base of the Antarctic Peninsula, and on the east by the western margin of the Filchner–Ronne Ice Shelf. It extends between 103°24'W and 79°45'W. The area west of 90°W is unclaimed, the area between 84°W and 90°W is claimed by Chile only, and the remainder by Chile and the United Kingdom as a part of the British Antarctic Territory. Eights Coast stretches between 103°24'W and 89°35'W, and Bryan Coast between 89°35'W and 79°45'W.

It is largely a high ice plateau, but includes the Ellsworth Mountains and a number of scattered mountain groups: Hudson, Jones, Behrendt, Hauberg, Merrick, Sweeney and Scaife Mountains.

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Hudson Mountains in the context of Pine Island Glacier

Pine Island Glacier (PIG) is a large ice stream, and the fastest melting glacier in Antarctica. responsible for about 13% of Antarctica's ice loss. The glacier flows west-northwest along the south side of the Hudson Mountains into Pine Island Bay, part of the Amundsen Sea. The area drained by Pine Island Glacier comprises about 10% of the West Antarctic Ice Sheet. Satellite measurements have shown that the Pine Island Glacier Basin has a greater net contribution of ice to the sea than any other ice drainage basin in the world and this has increased due to recent acceleration of the ice stream. In recent years, the flow of the glacier has accelerated and the grounding line has retreated.

Since 2015, the calving of very large icebergs from the Pine Island Glacier has become a roughly annual event. The largest such iceberg, Iceberg B-46, had an initial size of 226 square kilometres (87 sq mi).

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LINKED FROM (PARENTS)
← Pine Island Glacier ← Ellsworth Land
LINKS TO (CHILDREN)
Mountain range → Ellsworth Land → Amundsen Sea → Walgreen Coast → Amundsen Sea → Nunatak → West Antarctic Ice Sheet → Cosgrove Ice Shelf → Pine Island Glacier → Miocene → Pliocene →