Geology

Name: ___________________________ Sec: ________

Magma Properties

In class we built a table of magma properties that described the relationship between viscosity, temperature, silica content, gas content, and explosivity of a volcano. In this exercise, you will complete a chart showing the relationship between those same properties. Spelling counts!

1) On the blank lines A, B, & C, fill in the magma types based on increasing silica content arrow (felsic, intermediate, mafic). State the % silica content for each magma type.

2) Label each line on the diagram with the properties of: viscosity, temperature, volatile content, and explosivity. The first line has been labeled for you.

a) Use arrows to show the direction in which the property increases.

b) On the temperature line, state the maximum and minimum temperatures at which magma erupts