Defining volcanoes What are three characteristic features you woul...

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Defining volcanoes
What are three characteristic features you would expect to find looking at a volcano – any volcano?

Draw a diagram of a shield volcano in the box below and label at least two distinguishing features.
Shield volcano

Briefly, provide two ways in which your diagram would be different if you had drawn a:
 Scoria cone
 Composite volcano

Now, draw a simple sketch that shows the relative width and elevation of all three types of volcanoes (shield, composite, scoria cone).

Next to each of the following PRODUCTS of a volcano,
Record in the first column whether it will most likely associated with a shield, composite, or scoria volcano.
Record in the middle column whether any associated magma would have a high or low viscosity
Record in the far right column whether high or low gas content is associated with that product

                                                                            Type of volcano                      Viscosity                        Gasses
Vesicular basalt
Layers of volcanic ash with pieces
of pumice (whole thing called “tuff”)
Basaltic lava flows
Layers of mudflow deposits
Andesitic lava flows
Pillow basalts

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