ÖNCEL AKADEMİ: INTRODUCTION TO GEOPHYSICS
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This document provides an overview of geophysics, including what geophysics is, examples of different types of geophysics (such as solid earth geophysics, exploration geophysics, engineering geophysics), and examples of specific geophysical methods like gravity, magnetics, seismic, ground penetrating radar, and resistivity. It also discusses aspects of planning and conducting geophysical surveys, such as spatial aliasing, sources of noise, data processing, and displaying data.
![Introduction to Geophysics Ali O. Oncel [email_address] Department of Earth Sciences KFUPM Lecture 2 Overview](https://image.slidesharecdn.com/lecture2-1-091220220819-phpapp01/85/ONCEL-AKADEMI-INTRODUCTION-TO-GEOPHYSICS-1-320.jpg)
ÖNCEL AKADEMİ: INTRODUCTION TO GEOPHYSICS
- 1. Introduction to Geophysics Ali O. Oncel [email_address] Department of Earth Sciences KFUPM Lecture 2 Overview
- 2. Geophysics Identify Geologic Problem Survey Plan Data Acquisition Data Reduction Data Analysis Modeling Write Report Photos from http://www.eegs.org/whatis/
- 3. What is Geophysics? Application of physics to studies of the Earth, Moon, and other planets Includes Earth, Atmosphere, Oceans, Planetary systems
- 4. What is Geophysics? Solid-earth geophysics which is the study of the earth by quantitative physical methods, thus excluding portions of other subjects Exploration geophysics is the use of seismic, gravity, magnetic, electrical, electromagnetic, etc., methods in the search for oil, gas, minerals, water, etc., with the objective of economic exploitation.
- 5. Examples of Geophysics Pure and Applied Geophysics Solid Earth Surface Geophysics
- 6. Applied Geophysics (economic objectives) Exploration Geophysics Engineering Geophysics Environmental Geophysics Groundwater Geophysics Archaeo – Geophysics Forensics
- 7. Applications? Approach to earthquake hazards and ground survey Plate tectonics, the study of the interior structure of the earth Human's ability to exploit natural resources Engineering Environmental Hydrological http://seg.org/you-geo/definition.shtml
- 8. Examples of geophysical methods? Gravity http://www.vibra-tech-inc.com/content.asp?ID=magnetics_gravity
- 9. Examples of geophysical methods? Magnetics http://www.vibra-tech-inc.com/content.asp?ID=magnetics_gravity
- 10. Examples of geophysical methods? Seismics a. Reflection b. Refraction c. Surface or borehole
- 11. Examples of geophysical methods? Ground Penetrating Radar
- 12. Examples of geophysical methods? Resistivity
- 13. 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
- 14. Geophysics and Geology Geology places constraints on geophysical models Geophysics places constraints on geologic interpretations
- 15. Planning a Survey - Spatial Aliasing
- 16. Two and Three Dimensions Location of Profiles
- 17. Common Sources of Geophysical Noise
- 18. Data Processing - Elimination of Noise
- 19. Displaying Data
- 20. Summary Geophysics Applied (Environmental) Geophysics Gravity, Magnetic, Seismic, GPR & Resistivity Selection of Proper Technique Designing a Geophysical Survey