Name:________________________________ Period: ______ Date:______________
CHAPTER 13: GEOLOGIC TIME REVIEW WORKSHEET
Vocab to Know: 2 bonus points for creating vocab flash cards for the following terms:
Uplift
Subduction zone
Weathering
Volcanic arcs
Erosion
Rift valley
Erosion Half-life
Divergent zones
Theory of plate tectonics
Transform fault
Mantle
Plumes
Continental Crust
Upwelling
Oceanic crust
Convection
Continental drift
Hot spots
Convergent zones
Endemic
Answer the following questions:
The Galapagos Islands are thought to have been created by a plate crossing over a hotspot which created the
volcanic island chain over time.
1.
The Galapagos Islands are found on the ________________ plate which is traveling towards
_______________________.
2. Find the islands of San Cristobal and Fernandina on the map of the Galapagos Islands. Knowing the direction of
plate movement, which of the islands would you think is the younger and which is the older? Why?
The table below shows the ages and distances for islands and seamounts in the Galapagos.
Seamount or Island
Espanola
San Cristobal
Floreana
Santa Cruz
Santiago
Isabela
Fernandina
Distance (km)
202
194
126
94
56
18
0
Age (Myr)
3.2
2.4
1.0
1.0
0.7
0.7
0.7
3. A. Plot the distances of the islands shown as a function of time.
B. From your data points make a “best fit” line and determine the slope of the line.
4. How fast is this plate moving? Show your work. Give your answer in centimeters per year. (Hint: Slope
calculation here.)
5.
During which time period was the plate moving the fastest?
6. How long will it take before the Galapagos Islands to go down the trench off of South America's west coast? The
Galapagos Islands are about 677 miles off the coast of South America. (1 mile = 1.61 km)
7. What geologic process is responsible for tectonic plate movement? Draw a labeled diagram showing how this
works.
8.
Complete the table below describing the 3 main plate boundary types:
1
2
3
Plate boundary type:
Description of what is
happening at this plate
boundary.
Labeled drawing of plate
boundary.
Actual location where you
can find this type of
boundary:
Geologic structure(s)
formed at this plate
boundary
9. Draw and label a cross section of the Earth, identify the inner core, outer core, mantle continental crust and
oceanic crust.
10. Describe the process(es) by which mountains can be formed, such as the Rocky Mountains in Colorado. Be sure
to use some of those vocab terms!
11. On the graph paper below, draw a mountain profile (you choose the starting height!) Label the axes Elevation (y
axis) and Distance (x axis).
A. Using a different color, draw what the mountain profile would look like in one erosional half life. Make sure
to label the elevation!
B. Using a third color, draw what the mountain profile would have looked like in one erosional half life in the
past. Make sure to label the elevation!
Practice Dimensional Analysis Problems: Show all your work using dimensional analysis – don’t forget units!!!
12. The average student is in class 330 min/day. How many hours/year is the average student in class?
13. Light can travel 300,000,000 meters per second (m/s). Calculate how fast this is in miles per hour (mi/hr). There
are 1.61 km in 1 mile.
14. A unit of length called the “furlong” is used in horse racing. The units of length called the “chain” and the “link”
are used in surveying. There are 8 furlongs in 1 mile (mi), 10 chains in 1 furlong, and 100 links in 1 chain. What
is the length of 1 link in inches?
***Also Review the “BUILDING BRIDGES” lesson and make sure you know how to use the fossil record to identify
endemic species and infer plate movements.***