Question

In which region is there most likely to be a volcano?

a = african plate; b = north american plate; c = south american plate; d = pacific plate

O a
O b
O c
O d

Answer 1

Volcanoes are most likely to be found in the d. Pacific Plate region due to its subduction zones and hotspots, especially Hawaii. Yellowstone has more volcanism than Anahim, partially due to the continental crust.

Step-by-step explanation:

The region where a volcano is most likely to be found is d) the Pacific Plate. This is because the Pacific Plate encompasses the "Ring of Fire," which is an area with a high concentration of volcanoes due to subduction zones around the oceanic plate boundaries. Additionally, it includes the Hawaiian islands, known for their volcanic activity due to a mantle hotspot underneath.

Comparing the Yellowstone and Anahim hotspots, the Yellowstone hotspot track has more volcanism. The size of the calderas, especially the one created by the enormous Gray's Landing eruption 8.72 million years ago, indicates more significant volcanic activity in Yellowstone than in Anahim. The larger eruptions can be attributed to the tectonic history and the composition of the crust above these hotspots, with Yellowstone being under a continental crust that allows for bimodal volcanism.

The Yellowstone hotspot, still considered active, provides heat for the geysers and hot springs within Yellowstone National Park. The Anahim hotspot in central British Columbia forms a northern chain of volcanoes and plutons. Among these hotspots, particularly the Hawaiian hotspot showcases extensive volcanic activity, including creating the long chain of the Hawaiian Islands.