14 Jun BIO 1010 – How a caldera forms from principle types of volcanos
Question
Unit 4
Question 9
In your own words, briefly explain how a caldera forms from principle types of volcanos.
Question 10
Recall from your reading about the nature of volcanoes, and in your own words, compare and
contrast aa and pahoehoe lava in appearance and how they form.
Question 11
According to the figure below, give an approximate age for the Dakota Sandstone and for the
Wasatch Formation. Explain what evidence you used to determine this.
Question 12
Volcanoes are generally not preserved in the geologic rock record because 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 principle 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. Your response should be at least 200
words in length.
Unit 5
Question 8
When you are at the beach, you notice that the waves seem to "break" at the same point as
they come towards shore. Explain what is happening beneath the surface to cause the
waves to break at this point.
Question 9
Discuss two reasons why summer temperatures in coastal locations in Southern California
are cooler than coastal locations at the same latitude in Georgia.
Question 10
Examine the chart below. At what latitudes do we find the maximum salinity? Briefly
explain what contributes to high salinities here versus polar and equatorial regions.
1.
Question 11
A variety of techniques and efforts are used to stabilize shorelines throughout the
world. Discuss these techniques. Are they temporary or permanent? Also, discuss at least
two ways in which the development/urbanization of coastal areas contributes to shoreline
erosion? (Hint: think about rivers and what they contribute to our beaches. Also, what
increases with the creation of roads and rooftops?) Your response should be at least 150
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