# Lab 6c Correlation

Description

Prior to completing this lab exercise you should review the Pre-lab reading found in Lab 7 of the Pam Gore Lab Manual beginning on page 155. Pay close attention to the examples. You must also watch the video tutorials on Stratigraphy and Correlation. You can either complete the correlation between beds by the method outlined in the lab manual, or the simpler method provided in the video tutorial. You can either print this lab and complete the correlation by hand or use the simple drawing tools found in Word to draw straight lines (found under Insert, Shapes, then choose the line symbol). The following stratigraphic sections were taken from the lab manual, Lab 7.There are 11 questions in total this goes with the Pamela Gore lab manual text.

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Stratigraphic Correlation.
Prior to completing this lab exercise you should review the Pre-lab reading found in Lab 7 of the Pam Gore Lab Manual
beginning on page 155. Pay close attention to the examples. You must also watch the video tutorials on Stratigraphy and
Correlation. You can either complete the correlation between beds by the method outlined in the lab manual, or the
simpler method provided in the video tutorial. You can either print this lab and complete the correlation by hand or use
the simple drawing tools found in Word to draw straight lines (found under Insert, Shapes, then choose the line symbol).
The following stratigraphic sections were taken from the lab manual, Lab 7.
1. Correlate the three sections above matching similar rock types and the unconformity present. The rock type key can
be found in table 7.1 of your lab manual.
2. What type of unconformity exists and can be correlated in all three sections? Circle the correct answer.
a. Nonconformity
b. Disconformity
c. Angular Unconformity
3. The sequence of rock units above the unconformity what about the sea level? Circle the correct answer.
a. Sea level was rising; the rock units indicate a transgressive sequence
b. Sea level was rising; the rock units indicate a regressive sequence
c. Sea level was falling; the rock units indicate a transgressive sequence
d. Sea level was falling; the rock units indicate a regressive sequence
4. Correlate the two sections above matching similar rock types and the unconformity present. The rock type key can
be found in table 7.1 of your lab manual. Pay attention to figure 7.3 in your lab book to understand how to display
the rock units that do not correlate in both sections.
5. Why do the sandstone and coal layers only exist in section B? There are two likely answers:
a.
b.
6. If I were to drill into the ground beneath the letter B, how deep would I need to drill before I would encounter the
coal layer?
7. List the rock types in section A from oldest to youngest:
_______________________________ Youngest
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________ Oldest
8. Correlate the three sections above matching similar rock types. The rock type key can be found in table 7.1 of your
lab manual. Pay attention to figure 7.16 in your lab book to understand how to display the rock units that do not
correlate between all three sections.
9. Label the left side of section A to illustrate a transgression, a regression and the time of sea level high stand. See
figure 7.16C in your lab book for an example.
10. These sediments were all deposited in or adjacent an ancient inland sea.
a. Which rock type was deposited in the deepest water? ________________________
b. Which rock type would indicate a beach environment? ________________________
c. Which rock type would indicate a river environment? _________________________
d. Which rock type would indicate the quietest water with the least energy? ________________________
e. Which rock type would indicate the fastest moving water with the highest energy? ____________________
11. In which direction did the deepest water exist for the longest period of time? __________________________

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