EASC 207: Introduction to Geophysics
| Credits: | 3 |
Pre-requisites: | MATH 152*, PHYS 121* (or 102+) & 131* (or 130+) |
Lecture (hrs/week): | 2 |
| Terms: | Fall |
Co-requisites: | None |
Lab (hrs/week): | 3 |
| Note: | * with grade C- or higher, + with grade B or higher | ||||
| Instructors: | Calvert | Quantitative | |||
| Course Notes: | |||||
Description:
Use of physical measurements in determining the subsurface properties of the Earth. Principles underlying analysis of geophysical data. Basic rock physics. Gravity surveying: basic theory, instrumentation, data reduction, and anomaly interpretation. Magnetic surveying: rock magnetism, Earth’s magnetic field, instrumentation, data reduction, anomaly interpretation. Electrical surveying: (i) resistivity of rocks, electrode arrays and current flow in the ground, resistivity sounding and profiling; (ii) induced polarisation, IP measurement and applications; (iii) self potential methods. Seismic surveying: stress and strain, seismic waves, reflection and refraction of seismic waves, critical refraction, rays and waves. Seismic refraction surveying: seismic sources and detectors, geometry of refracted raypaths for horizontal, dipping and undulating layers, data interpretation.
Course Topics- Introduction to geophysical data: physical properties of rocks , sampling, time vs. frequency
- Gravity surveying
- Magnetic surveying
- Electrical methods: resistivity, induced polarisation and self potential
- Seismic refraction methods
An Introduction to Applied and Environmental Geophysics, by J.M. Reynolds (Wiley)