GEOL 334.3
Midterm exam
The exam will be take-home and include material including Self Potential and Induced
Polarization. The exam will consists of 5-6 simple problems and giving
descriptions of the key concepts encountered in the lectures and labs.
To align with the lab schedule, we will have the exam on the week of Feb 28
(after the break).
I will email exam sheets to you on Feb 26 or 27, and they will be due on Mar 4.
Final exam
We will decide later whether the final exam will be take-home or in-person.
Formula sheets for exams (for
midterm, use only the relevant parts)
What you are expected to
know for the exams:
Gravity methods
- Concept of potential field
- Relation of gravity
vector to
potential
- Newton's law for
gravity
- Characteristic depth
of imaging and resolution
Electrical methods
- Ohm's law
- Electrical properties of rocks
-
Archie's law
- Potential due to a current in a a
semi-infinite medium
- Apparent resistivity
- Pseudo-sections
- Wenner, Schlumberger, Pole-Dipole, Dipole-Dipole
configurations of electrodes
- Geometric factors
- Qualitative response for layered Earth
Electromagnetic (EM) methods
- Principles of frequency and time domain EM methods (essential diagrams)
- Skin depth and its significance,
dependence on frequency and conductivity
- Coupling coefficient and response function
- EM
survey configurations
- Measurement parameters, ellipse of
polarization
Induced-Polarization
method
- IP effect, electrode/membrane polarization
- Time- and frequency-domain IP
measurements
- Model for the polarized medium
- Electrode configurations, chargeability, %
frequency effect
- Pseudo-depth section
Self-Potential and
Magneto-telluric methods
- Type
of the source
- General
principles of these methods
Seismic Methods
- Wave speeds
- Impedance and
reflectivity
- Refraction method
- Reflection method