Lava
A substance's ability to burn is a _________ property.
What is a chemical property?
A volcano that is erupting or one showing signs that it may erupt in the future...
What is an active volcano?
A(n) ___________ eruption can produce both pahoehoe and aa lava.
What is quiet eruption?
This type of boundary is exists beneath Iceland at the Mid-Atlantic Ocean Ridge.
What is a divergent boundary?
This causes magma to be thicker...
What is silica or lower temperature?
Describe the magma from an explosive eruption.
What is thick and sticky / high viscosity / high silica?
List and describe the three types of plate boundaries...
What is divergent boundary (plates come apart), convergent boundary (plates come together), and transform boundary (plates slide along one another)?
Explain why continental crust produces explosive eruptions and oceanic crust produces quiet eruptions (typically speaking).
What is continental crust (granitic) contains more silica, so the magma plugs up the pipe and builds up pressure until the volcano explodes. Oceanic crust (basaltic) contains less silica and flows out of volcanoes more easily.
This is created when layers of thin, runny lava flows over a wide area before they cool and harden...
What is lava plateau (shield volcano is okay, too)?
This connects the magma chamber to the central vent.
What is the pipe (conduit)?