Earth System Topics: Time/Earth History Show all Earth System Topics: Time/Earth History
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Biozones, stratigraphic log correlation, and corresponding interpretation of paleoenvironments.
Francis Jones, University of British Columbia
This exercise is a guided opportunity for any number of students (even hundreds) to start using recently learned, lower-level knowledge about stratigraphy and biostratigraphy in an integrative, interpretation ...
Crater Counting Lab exercise
Kevin Mullins, Coconino County Community College
This lab is designed to teach students how we can estimate the age of other planetary surfaces by counting and size-binning impact craters. It also illustrates some examples of how erosional or deopositional ...
Dating Students: Relative vs. Numerical Time
Susan Zimmerman, Lawrence Livermore National Laboratory
This activity introduces students to the fundamental ideas of relative versus radiometric dating, using the students themselves as a sample population. In the first half, the students attempt to order the people in ...
Relative Age Correlation
Gwen Daley, Winthrop University
Students learn to apply basic correlation principles to geologic cross-sections.
Relative vs. Numerical Dating and Geochronology with Beads
Karen Viskupic, Boise State University
Students use relative dating principles to interpret the ages of rocks in a block diagram. They then "date" samples from these rocks to test their relative age hypotheses. Sample dating is done by ...
Climate History from Deep Sea Sediments
DATA: Integrated Ocean Drilling Program (IODP) Core Data. TOOL: Virtual Ocean. SUMMARY: Locate potential core, log, and seismic data to map the marine sediment biostratigraphy. Search for a specific planktonic foraminifera that prefers warmer ocean conditions.
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Determining Earthquake Recurrence Intervals from Trench Logs
Patricia Cashman, University of Nevada-Reno
Trench logs of the San Andreas Fault at Pallett Creek, CA are the data base for a lab or homework assignment that teaches about relative dating, radiometric dating, fault recurrence intervals and the reasons for uncertainty in predicting geologic phenomena. Students are given a trench log that includes several fault strands and dated stratigraphic horizons. They estimate the times of faulting based on bracketing ages of faulted and unfaulted strata. They compile a table with the faulting events from the trench log and additional events recognized in nearby trenches, then calculate maximum, minimum and average earthquake recurrence intervals for the San Andreas Fault in this area. They conclude by making their own prediction for the timing of the next earthquake.
Fun with foam, demonstrating strike and dip in class
Angela Moore, Guilford College
Colorful foam sheets are used in a classroom or lab setting to introduce students to the concept of strike and dip. It is interactive, and the instructor or TA's can quickly see which students are ...
Seafloor Ages Lecture Tutorial
Karen Kortz, Community College of Rhode Island
Students work on this Lecture Tutorial worksheet on seafloor ages in pairs during lecture. It directly confronts misconceptions students have about the age of the seafloor, and it guides students to more complex ...
Ordering Geologic Events and Interpreting Geologic History: The Grand Canyon
Jennifer Wenner, University of Wisconsin-Oshkosh
This activity is designed to have students re-examine rocks they looked at earlier in the semester and use them to interpret some of the geologic history of the Grand Canyon.