Types of Volcanoes
Describe the characterisitics of a composite volcano!
What are cone-shaped with concave slopes, & are much larger than cinder cone volcanoes & Are very explosive?
What mineral group causes lava to be viscous & causes explosive eruptions?
What is silica?
When magma reaches Earth's surface its called?
What is lava?
What is the definition of a batholith?
What is large irregularly shaped masses & are formed from course grained igneous rocks?
What is the processes associated with the discharge of magma, hot fluids, ash, & gases?
What is volcanism?
Describe the characteristics of a shield volcano!
What are a mountain with broad, gently sloping sides that have non-explosive eruptions?
Describe what pyroclastic flows are!
What are rapidly moving clouds of tephra mixed with hot, suffocating gases?
What is the definition of the conduit?
What is a tube-like structure that lava travels through to get to the surface?
What is the definition of a stock?
What are similar to batholiths & are irregularly shaped, but smaller?
What is erupted material from a volcano?
What is tephra?
Describe the characteristics of a cinder cone volcano!
What are small cone-shaped volcanoes that are explosive?
Describe what basaltic magma is!
What is magma with low silica content & produces low viscosity & causes quiet eruptions?
What is the definition of the vent?
What is the opening through which lava exits out of?
What is the definition of a laccolith?
What are lens-shaped plutons with a round top & flat bottom?
What is huge pieces of crust & rigid upper mantle that fit together at their edges to cover Earth's surface?
What is a tectonic plate?
Compare & contrast a composite to a shield volcano?
What is a composite volcano is cone-shaped explosive volcano & a shield volcano is flat & wide & non-explosive? They are similar bc they both have craters.
Describe what andesitic magma is!
What is has higher silica content & intermediate viscosity & has intermediate explosivity?
What is the definition of a crater?
What is a bowl-shaped depression at the top of a volcano?
What is the definition of a sill?
What is plutons that intrude between layers of rocks?
What is the physical property that describes materials resistance to flow?
What is viscosity?
Describe what a hot spot volcano is!
What is extremely hot magma rises to the surface from a plume that is not near a tectonic plate?
Describe what rhyolitic magma is!
What is high silica content, high viscosity & very explosive?
What is the definition of a caldera?
What is a large volcanic crater that can get up to 100 km in diameter?
What is the definition of a dike in Earth Science?
What is a pluton that cuts across the rocks?
What is an intrusive igneous rock that can be exposed at Earth's surface as a result of uplift or erosion?
What is a pluton?