What are ten characteristics of a cinder cone volcano?
Cinder Cone is a 700 ft (213 m) high cone of loose scoria. Scoria forms when blobs of gas-charged lava are thrown into the air during an eruption and cool in flight, falling as dark volcanic rock containing cavities created by trapped gas bubbles. The summit of Cinder Cone has a crater with a double rim (photo), probably created by fluctuating eruptive activity late in its formation. The cone also has several associated blocky lava flows, and a related, widespread ash deposit identifiable for 8 to 10 miles (13 to 16 km) from the cone. There are actually two scoria cones at Cinder Cone—the remnants of a nearly completely buried earlier cone can be seen on the larger cone’s south side. Much of the earlier cone was probably destroyed by lava flows erupting from its base. Blocks of red, cemented scoria within the Painted Dunes lava flows (photo) are pieces of this earlier cone, which were carried away by the flowing lava. During its formation, the composition of the molten rock (magma) fee
