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Shield volcanoes are formed from the extrusive igneous rock basalt.basalt
Continental: granite oceanic: basalt
Granite
Basalt is the dominant rock in the ocean crust. And I assume Granite is dominant for continental crust.
Shield cones
Shield volcanoes are formed from the extrusive igneous rock basalt.basalt
Continental: granite oceanic: basalt
basalt forms in oceanic crust granite forms in continental
All three rock types are found in continental crust, with a preponderance of granitic type igneous rock.
Igneous.
shield volcano
The continental crust is composed largely of granite.
it is made up of the type of rock that is called the ciarra rock its mostly made in purto rico and france
Granite.
Granite
Basalt is the dominant rock in the ocean crust. And I assume Granite is dominant for continental crust.
Shield cones