A Collegelevel Introductory Geology Activity Jennifer Eden Westminster College Utah jedenwestminstercollegeedu Goals Use GPS Monuments to quantify the stretching of the Basin and Range Province ID: 1021334
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1. Exploring the Basin & Range ProvinceA College-level Introductory Geology Activity~Jennifer Eden, Westminster College, Utahjeden@westminstercollege.edu
2. GoalsUse GPS Monuments to quantify the stretching of the Basin and Range Province.Learn to validate results by evaluating the underlying data including plotting, calculating rate of motion, and adding vectors.Use data to draw conclusions and come up with theories that are supported by the data.Use your conclusions to deduce why stretching of crust leads to Basin and Range geography.Tool - UNAVCO GPS Velocity Viewerhttp://www.unavco.org/software/visualization/GPS-Velocity-Viewer/GPS-Velocity-Viewer.html
3. Interpret Motion Based on Image
4. Look at Specific Monuments
5. Interpret Motion Based on Processed Data
6. Compile Data from GPS Velocity Viewer
7. Data Validation Based on Raw Data for ELKO MonumentRate of north-south motion in mm/dayRate of east-west motion in mm/day
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9. Compare to Processed DataDiscussion of assumptions in data analysis and standard deviation.
10. Deductions Based on DataWhat do data indicate about plate motion in the Basin & Range?Stretching about 1.1 mm/yr = 1.1 km/MaComparison with knowledge of how much region has stretched over geologic timeHow does crust “stretch” if it is rigid? It breaks… Lead in to normal faulting and exploration of the Wasatch Fault and its earthquake potential.
11. Other Areas to Explore…Can you use GPS data to assess normal faulting? UNAVCO data weren’t clear on this.Compare Basin and Range to East Africa Rift Valley using GPS data? This didn’t seem straight forward either. Need to look to other data sources.