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St. Petersburg College Chemical Composition of Volcanoes Questions


Help me study for my Geology class. I’m stuck and don’t understand.

9)The Hawaii hotspot produces mafic volcanoes while the Yellowstone hot spot produces felsic volcanoes, what does this mean for the relative explosiveness of these two volcanoes ie which would be more and which would be less explosive?

10) Looking at question 9 what is is about the chemical composition that makes one volcano more explosive? Relate the chemical composition of the volcano to the type of crust involved.

)The area we visited was originally volcanic but the rocks we saw were metamorphic.What future geological event on the east coast of the US likely provided the heatand pressure to metamorphose the rock we saw? (hint- there is a HUGE mountain range that runs up the Eastern US and even over into the UK)

Introduction to Geology Textbook https://opengeology.org/textbook/


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