Venn Diagram: Magma Composition and Magma SourcesUse the Venn diagram provided to compare...

Venn Diagram: Magma Composition and Magma Sources

Use the Venn diagram provided to compare and contrast the compositions and sources of the three principal types of magma. Write the numbers corresponding to features unique to each magma type in the larger areas of each circle; note features that they share in the overlap areas. Identify at least seven more features.

1. Low silica content

2. From a mantle source

3. Example: Aleutian Island volcanoes

4.

5.

6.

7.

8.

9.

10.