Volcanoes are basically not preserved in geologic rock record as they are basically eroded away. However, the numerous materials erupted from volcanoes are frequently found preserved in the rock record. From what you have learned about the dissimilar types of volcanoes, how could you infer what type of volcano erupted in given area based upon the type of volcanic deposits now found as layers of rock? Provide specific exs, and in brief describe how some materials might be linked to different types of volcanoes.