Bella Bella and Gale Passage dike swarms

The Bella Bella and Gale Passage dike swarms are two parallel dike swarms on the Central Coast of British Columbia, Canada.

[1][2] They are both chemically bimodal, consisting of rocks such as basalt, trachyte and comendite.

[3] The Bella Bella and Gale Passage dike swarms are petrographically similar to the shield complexes in the central Anahim Volcanic Belt.

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Map showing the location of an east–west trending zone of related volcanoes extending from the British Columbia Coast to the Interior.
The extent of the Anahim Volcanic Belt , including the Bella Bella and Gale Passage dike swarms