Lab Exam 3 (week of December 1):
The LAST lab exam will be at the start of
lab. Here are sessions with tutors and TA's in which you can review and ask questions.
The exam will be on:
Groundwater (Ch 9):
- Know how to determine the elevation of the water table on a topographic map.
- Be able to determine the direction of groundwater flow using a topographic map (similar to p. 175), or using a contour map of the water table (similar to p. 179).
- Know how to calculate the slope of the water table (a.k.a. the hydraulic gradient).
- Be familiar with the major components in the Groundwater Models assignment (Figs. 1, 2, & 3 beginning opposite p. 172), such as:
- What is the difference between a confined and unconfined aquifer?
- What is an aquitard (a.k.a. confining layer)?
- What does the water table look like when groundwater is flowing?
Dating and Geologic Time (Ch 13):
- You should be able to determine the relative timing of geologic events (including deposition of sedimentary rocks, igneous intrusions, folding, faulting and erosion).
- Know the three types of unconformities that we learned about in lab and lecture (See Figure 13.6 A, B, and D on page 251).
- Know what a half-life is, how to calculate a daughter/parent ratio, and how to read a graph showing the number of half lives that have elapsed vs. the daughter/parent ratio (Figure 13.11 on p.256). You should also be able to calculate the age of a rock when given the daughter/parent ratio, the half-life, and the above mentioned graph.
Geologic Structures and Maps (Ch 14 & 15):
- Folds and faults are types of geologic structures. Know the difference between
plunging/nonplunging anticlines and synclines.
- Be able to complete diagrams similar to Figure 14.12 (p. 271) and Figure 14.13a and b only (p. 272).
- Understand and be able to apply the concept you learned in Part II of the Structure Lab. Part II included problem 5 in your lab manual and the very last problem of the lab (the syncline block diagram).
- Be able to identify normal & reverse faults, hanging wall vs. footwall, and the stresses that produce each of these.
- Know the basic relationships produced when inclined and folded sedimentary layers are eroded (p. 282; Fig. 15.3 and summary points 1-4 top right of p. 283).