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Geological Formation

Stawamus Chief

Inselbergs and Crystalline Monoliths

The Stawamus Chief is a granite monolith rising about 700 meters above Howe Sound near Squamish, British Columbia, formed from a body of granodiorite, part of the Coast Mountains Batholith, that intruded and cooled underground roughly 100 million years ago during a long period of volcanic and tectonic activity along the region's ancient continental margin. Its exposed granite face was shaped chiefly by glacial erosion during the last ice age, when thick valley glaciers scoured away overlying and surrounding rock, plucking along natural joints in the granite to leave the steep cliff faces seen today, further refined since by rockfall and exfoliation. Known to the Squamish Nation as Siyam Smanit, the formation is one of the largest exposed granite monoliths in North America and a major destination for rock climbing.

Facts
Classification
Protected Status
Locally or Regionally Protected 1
Connections

Associated With

Cretaceous, Eras
Source Wikipedia: Stawamus Chief, Wikipedia
Granite, Materials
Source Wikipedia: Stawamus Chief, Wikipedia

Caused By

Erosion, Processes
Source Wikipedia: Stawamus Chief, Wikipedia
Glaciation, Processes
Source Wikipedia: Stawamus Chief, Wikipedia

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Also in Geography Atlas: where this subject is found.

Sources
1. Wikipedia: Stawamus Chief, Wikipedia
  • Section: The park
    In 1997, the Stawamus Chief Provincial Park was established by the British Columbia Ministry of the Environment.
  • Associated With: Granite, Lead paragraph
    It is one of the largest granite monoliths in the world.
  • Associated With: Cretaceous, Article text, age Cretaceous
    The Chief is part of a medium-sized pluton of a granitic rock (granodiorite) that was initially formed in the early Cretaceous (approximately 100 million years ago) by the slow cooling and solidification of molten magma deep below the surface of the Earth.
  • Associated With: Granite, Article text, rock Granite
    The Chief is part of a medium-sized pluton of a granitic rock (granodiorite) that was initially formed in the early Cretaceous (approximately 100 million years ago) by the slow cooling and solidification of molten magma deep below the surface of the Earth.
  • Caused By: Glaciation, Article text, process Glaciation
    Once exposed at the surface, the original granodiorite body was shaped by glacial erosion, which is responsible for the tall steep walls that define the Chief, as well as the excavation of Howe Sound, a fjord.
  • Caused By: Erosion, Article text, process Erosion
    Once exposed at the surface, the original granodiorite body was shaped by glacial erosion, which is responsible for the tall steep walls that define the Chief, as well as the excavation of Howe Sound, a fjord.
View the Source
Wikidata: Stawamus Chief
Wikidata Q7604891, class allow-list match (w-wdresolver-0926)View the Source
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