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Applied Geophysics Geology 147

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Applied Geophysics Geology 147

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    1. Applied Geophysics Geology 147 Lecture 1 Introduction

    2. Applied Geophysics Identify Geologic Problem Design Survey Acquire Field Data Data Reduction Model Data Interpret Model Write Report

    3. Tonight Greensheet review Textbook What is Geophysics? Applied (Environmental) Geophysics Methods Selection of proper technique Designing a survey

    4. What is Geophysics?

    5. What is Geophysics? http://seg.org/you-geo/definition.shtml

    6. Examples of Geophysics

    7. Applied Geophysics (economic objectives)

    8. Applications? http://seg.org/you-geo/definition.shtml

    9. Geophysical Methods Respond to physical properties of subsurface media Can you name some of these properties? Passive vs. active methods A very wide range of powerful tools Can you name some?

    10. Examples of geophysical methods?

    11. Examples of geophysical methods?

    12. Examples of geophysical methods?

    13. Examples of geophysical methods?

    14. Examples of geophysical methods?

    15. Geophysical Methods Critical to select correct tool(s) for objective either alone or part of a larger survey Need to understand geologic problem, physical property to be measured If physical principles are misunderstood, then results may be misinterpreted Constraints of Study Geological, Physical, Financial, Temporal

    16.

    17. Geophysical Methods May not yield complete answer or unique solution; Non-uniqueness of forward modeling Many solutions, but which ones are nonsense, which are plausible Interpret within physical constraints & geological framework

    18. Geophysics and Geology Geology places constraints on geophysical models Geophysics places constraints on geologic interpretations

    19. Planning a Survey - Spatial Aliasing

    20. Two and Three Dimensions Location of Profiles

    21. Survey Noise

    22. Data Processing - Elimination of Noise

    23. Displaying Data

    24. Displaying Data

    25. Summary

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