Springdale Caldera


The Springdale Caldera is a large Early Silurian caldera in west-central Newfoundland, Canada. It is at least long and wide with an area more than. It is one of the few calderas in Newfoundland that form a large Silurian age volcanic field and consists of basalt, andesite, rhyolite, pyroclastic rocks, debris flows, breccias, and red sandstone.