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The Pacaya volcano is a part of the Central American Volcanic Arc, a chain of volcanoes stretching from the northwest to the southeast along the Pacific coast of Central America, formed by the tectonic subduction of the Cocos Tectonic Plate beneath the Caribbean Plate.
Best Answer: Shield volcanoes are formed primarily by lava flows. This results in smooth sloping sides that resemble a convex shield laying down, facing up. Cinder Cone Volcanoes are formed primarily by ejected solid matter. This makes steep sides that make the volcano more conical. Composite volcanoes exhibit a mixture of ejected rock and lava flows. So they are something in between, a volcano not as steep as cinder cone volcanoes but still somewhat conical.