Undergraduate Courses

Basic principles of geophysical survey methods, gravitational, magnetic, electrical, electromagnetic and radiometric methods, description of instruments and how to perform measurements, laboratory exercises, applications in geothermy, hydrology and environment, mineral research, archaeology and geotechnical problems.

In the undergraduate course of Applied Geophysics, in addition to the lectures (3 hours / week), the following seven (7) Laboratory Exercises on a weekly basis (2 hours) are presented in small groups (3-4 people), in a specially designed class of the Laboratory of Applied Geophysics and at the Computer Center of the Technical University of Crete.

1. Processing of vertical electrical sounding data

2. Processing of gravitational and magnetic data.

3. Electromagnetic Angle - Tilt method.

4. Georadar - Creation of synthetic data.

5. Georadar - Signal processing in real data.

6. Electrical mapping and vertical electrical sounding.

7. Magnetic mapping with differential magnetometer.

Object and importance of seismic methods, propagation of elastic waves in one direction, body and surface waves, recording instruments, method of seismic refraction, method of seismic reflection, dynamic and static corrections, methods of velocity analysis, seismic migration, synthetic seismograms, applications of seismic methods in mining research, engineering projects, hydrogeology and the environment.

In the undergraduate course Seismic Methods, in addition to the lectures (2 hours / week), students are given, using multimedia (PowerPoint), eight (8) standard exercises on a weekly basis (1 hour). Also, the following Tutorial Exercises are delivered:

1. Seismic refraction: Structure of two horizontal layers.
2. Seismic refraction - multilayer medium.
3. Seismic refraction - dipping interface.
4. Experimental measurement of seismic velocity in the field using seismic refraction (Groups of 6-8 people x 1 hour each group).
5. Seismic reflection - multilayer medium.
6. Seismic reflection - dipping interface.
7. Seismic reflection - Creation of a synthetic seismogram.
8. CMP array, NMO correction, fold.
9. Stack section.

History and development of geophysical methods, logging while drilling, basic principles of logs interpretation, electrical logs, logs of natural radioactivity and potential logs, gamma rays, density logs, neutron logs, acoustic logs. Laboratory exercises.

In the undergraduate course of Formation evaluation using geophysical methods, in addition to the lectures (2 hours / week), eight (8) standard exercises on a weekly basis (1 hour) are presented to the students using multimedia (PowerPoint) and slides. Also, the following Tutorial Exercises are delivered:

1. Physical potential Loggings.
2. Density-lithology(Litho-Density.
3. MID method.
4. Formation Evaluation using acoustic loggings.
5. Electrical loggings of induction and spherical focus diagrams.
6. Electrical loggings: Archie Relation ship.
7. Degree of saturation in water from electrical loggings.

This course is part of the "Field School IV" course of the School of Mineral Resources Engineering and it consists of several days field work. Field work mainly includes integrated geophysical surveys for the detection of buried antiquities, mapping of saltwater intrusion at coastal areas and detection of dolines, caves, fractures and weak zones in karstic limestones.

In recent years, field laboratory exercises have been carried out in small groups (4-5 people) of groups of students in the extended area of ​​Falassarna, Chania, to study the problem of salinization observed in the area and include the following geophysical methods:

1. Method of seismic refraction.
2. VLF electromagnetic method.
3. Electrical tomography.
4. Vertical electrical sounding