Are Volcanoes Not Preserved

Volcanoes are generally not preserved in the geologic rock record as they are usually eroded away. However, the various materials erupted from volcanoes are often found preserved in the rock record. From what you have learned about the different types of volcanoes, how could you infer what type of volcano erupted in a given area based on the type of volcanic deposits now found as layers of rock? Give specific examples, and briefly discuss how some materials may be linked to different types of volcanoes.

Volcanoes generally erode away, they are not often preserved in the geologic record, but we can infer what types of volcanoes were present by the volcanic deposits left behind. The large, violent volcanoes, called stratovolcanoes, often produce