stratovolcano, or composite volcano
A volcano that is fairly symmetrical and has both layers of lava and pyroclastic deposits is a stratovolcano, also known as a composite volcano. These volcanoes are characterized by their steep-sided conical shape and alternating layers of lava flows, volcanic ash, and pyroclastic debris. They are capable of explosive eruptions due to their viscous magma composition.
As Mount St. Helens is a volcano the slopes would be covered in layers of volcanic dust and lava.
A composite cone is the type of volcano that consists of layers of lava flows and pyroclastic material. A stratovolcano is an example of a composite cone.
In a cinder cone volcano, layers of ejected lava are combined with "pyroclastic" layers, formed of "tephra" : hot gas and rock that flow from the cone. The classic volcanic cones are composed of several parts : * Cone - the mound of ash and cinder * Crater * - the main opening, usually at the peak or summit * Vents - openings from the cone * Conduits - the lava channels connected to the vents * Magma chamber - the underground source of the liquid rock for the volcano *A "caldera" is a collapsed area, usually formed when a magma chamber empties. This is distinct from the term crater.
Composite
Composite
stratovolcano, or composite volcano
A volcano that is fairly symmetrical and has both layers of lava and pyroclastic deposits is a stratovolcano, also known as a composite volcano. These volcanoes are characterized by their steep-sided conical shape and alternating layers of lava flows, volcanic ash, and pyroclastic debris. They are capable of explosive eruptions due to their viscous magma composition.
stratovolcano, or composite volcano
As Mount St. Helens is a volcano the slopes would be covered in layers of volcanic dust and lava.
A composite cone is the type of volcano that consists of layers of lava flows and pyroclastic material. A stratovolcano is an example of a composite cone.
A rock composed of layers of sediment.
The three layers are the retina, sclera, and the choroid.
Volcanic mountains form as layers of lava flows and/or pyroclastic material pile up from successive eruptions.
The atmosphere.
Dermis and Epidermis