Question

The volcanoes of northeastern California — Lassen Peak, Mount Shasta, and Medicine Lake volcano — along with the rest of the Cascade Mountains of the Pacific Northwest, are the result of subduction of the Juan de Fuca plate beneath the North American plate.
What type of plate boundary is this?
Identify the type of crusts at this plate boundary.

Answer 1

The type of plate boundary referred here is defined as an ocean-Continent Convergent Plate Boundary.

What is an ocean-continent convergent plate boundary?

An ocean-continent convergent boundary is a limit in which the oceanic plate is forced underneath the continental plate.

This type of boundary occurs when an oceanic lithospheric plate crashes against to a continental plate.

In conclusion, the type of plate boundary here is defined as an ocean-Continent Convergent Plate Boundary.

Learn more about Convergent Plate Boundaries here:

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