GEOL 1302 LAB 04: STRATIGRAPHY AND CORRELATION IN NORTH
TEXAS | VERIFIED STUDY | 2026 UPDATES GUARANTEED PASS
GEOL 1302
Lab 04
Stratigraphy and Correlation
In this lab, you are going to review the different stratigraphic approaches and the concept of
correlation, while studying a North Texas stratigraphic section. Please submit your
worksheets to your instructor.
Supplies needed:
1 sheet of graph paper, ruler
Helpful Websites:
http://en.wikipedia.org/wiki/Lithostratigraphy http://en.wikipedia.org/wiki/Biostratigraphy
http://en.wikipedia.org/wiki/Chronostratigraphy http://en.wikipedia.org/wiki/Facies
You also find very useful information in your textbook.
Standard lithologic symbols used in stratigraphic sections:
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, lOMoAR cPSD| 61371432
Stratigraphy of North Texas
Displayed in the lab is the lithostratigraphy (left and middle) and chronostratigraphy (right)
of the sedimentary units in North Texas in NE-SW direction from Paris (point A) through
Sherman (point B), McKinney (point C), Dallas (point D), to Waxahachie (E). Black layers
illustrate unconformities.
How many unconformities extend all the way from Paris to Waxahachie between the Antlers
(L) rock at the bottom and the Wolfe City rock at the top?
There Is 7 unconformaties
The unconformity that occurs at the top of the lithostratigraphic rock unit called the Britton
formation occurred during which chronostratigraphic stage? Mention evidence from the map
to support your answer.
The britton formation occurred during the upper Cenomanian in the eagle group
What is the absolute age at the top of the unconformity between the Britton and Acadia Park
lithostratigraphic units? How did you determine the age?
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