Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on...
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![Page 1: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/1.jpg)
Teaching Near-Surface Geophysics in the Field
Sarah KruseUniversity of South Florida
*see notes on Powerpoint file for details
![Page 2: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/2.jpg)
Learning Goalsfor USF B.S. and M.S. students
and workshops in Latin America
Hands-on experience
Using physical intuitionbasic underlying physics
Forward modeling and processing toolbox
Science communicationwriting reportsdiscussing posters
![Page 3: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/3.jpg)
Geophysics field opportunities at USF1. Principles of Applied Geophysics
Field project
![Page 4: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/4.jpg)
Principles of Applied GeophysicsLogistics
![Page 5: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/5.jpg)
Principles of Applied GeophysicsLogistics
![Page 6: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/6.jpg)
Principles of Applied GeophysicsLogistics
![Page 7: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/7.jpg)
Principles of Applied GeophysicsLogistics
![Page 8: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/8.jpg)
Principles of Applied GeophysicsLogistics
![Page 9: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/9.jpg)
Principles of Applied GeophysicsAssessment
toolbox
![Page 10: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/10.jpg)
Principles of Applied GeophysicsData archive
![Page 11: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/11.jpg)
Geophysics field opportunities at USF2. Geophysics Field Camp
![Page 12: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/12.jpg)
Learning GoalsHands-on experience
Using physical intuitionbasic underlying physics
Forward modeling and processing toolbox
Science communication writing reports, combined analysis of multiple methods on site
![Page 13: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/13.jpg)
Geophysics Field CampLogistics
![Page 14: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/14.jpg)
Geophysics Field CampLogistics
$
![Page 15: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/15.jpg)
Geophysics Field CampLogistics
![Page 16: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/16.jpg)
Geophysics Field CampLogistics
![Page 17: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/17.jpg)
Geophysics Field CampLogistics
![Page 18: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/18.jpg)
Geophysics Field Camp
Section heading Sample contentIntroduction Why this site?
Purpose of resistivity/conductivity measurements:Expect to see freshwater/saltwater interface (describe expected conductivity contrast)May see tar mats, buried tar mats (describe expected conductivity contrast)Ground truthing
Methods Equipment: AGI Supersting R8 resistivity meterField geometries: 28 electrodes, 1-m spacingAcquisition parameters: dipole-dipole and inverse Schlumberger array geometries, 2 cycles/readingProcessing software: Res2dinvProcessing steps: Editing data (what % removed, why?), inversion parameters, number of iterations,…
Results Map, position informationDescribe data volume, data qualityRaw data (if appropriate) = pseudosectionProcessed data = inversion Xsection(s)
Discussion On processed data image (preferably second copy), add notations with geologic interpretationsComparisons with ground truthingComparisons with other methods (if available)If appropriate, what didn’t work and why
Strengths and Limitations (of this method)
Finer spatial resolution than EM-31 or EM-34 (be quantitative if possible)Labor-intensive (xx hrs for xx meters of profile)
Assessment
![Page 19: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/19.jpg)
Geophysics Field CampAssessment
![Page 20: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/20.jpg)
Geophysics Field Camp
![Page 21: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/21.jpg)
Geophysics field opportunities at USF3. Field Geophysics
![Page 22: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/22.jpg)
Field GeophysicsLogistics
![Page 23: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/23.jpg)
Field Geophysics
Section heading Sample contentIntroduction Why this site?
Purpose of resistivity/conductivity measurements:Expect to see freshwater/saltwater interface (describe expected conductivity contrast)May see tar mats, buried tar mats (describe expected conductivity contrast)Ground truthing
Methods Equipment: AGI Supersting R8 resistivity meterField geometries: 28 electrodes, 1-m spacingAcquisition parameters: dipole-dipole and inverse Schlumberger array geometries, 2 cycles/readingProcessing software: Res2dinvProcessing steps: Editing data (what % removed, why?), inversion parameters, number of iterations,…
Results Map, position informationDescribe data volume, data qualityRaw data (if appropriate) = pseudosectionProcessed data = inversion Xsection(s)
Discussion On processed data image (preferably second copy), add notations with geologic interpretationsComparisons with ground truthingComparisons with other methods (if available)If appropriate, what didn’t work and why
Strengths and Limitations (of this method)
Finer spatial resolution than EM-31 or EM-34 (be quantitative if possible)Labor-intensive (xx hrs for xx meters of profile)
Assessment
![Page 24: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/24.jpg)
Field Geophysics WorkshopsLatin America
![Page 25: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/25.jpg)
Field Geophysics Workshops Case studies for subsequent students with access
to site but not to equipment
Critical to find sites with some ground-truthing
![Page 26: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/26.jpg)
Field Geophysics Workshops
![Page 27: Teaching Near-Surface Geophysics in the Field Sarah Kruse University of South Florida *see notes on Powerpoint file for details.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f275503460f94c3e5d2/html5/thumbnails/27.jpg)
Field Geophysics Workshops