GEOPHYSICS
GEOFISICA
| A.Y. | Credits |
|---|---|
| 2019/2020 | 10 |
| Lecturer | Office hours for students | |
|---|---|---|
| Stefano Santini |
| Teaching in foreign languages |
|---|
|
Course with optional materials in a foreign language
English
This course is entirely taught in Italian. Study materials can be provided in the foreign language and the final exam can be taken in the foreign language. |
Assigned to the Degree Course
| Date | Time | Classroom / Location |
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| Date | Time | Classroom / Location |
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Learning Objectives
The course aims to provide to the students the fundamental theoretical concepts of Solid Earth Geophysics
Program
1. Gravity - Gravitation. The Earth's rotation. The Earth's shape.
2. Gravimetry - Earth's gravitational field. The gravitational potential. The rotating solid body. The ellipsoid of rotation. The geoid. Deviation from vertical. Absolute measures of gravity. Relative measures. Theory of gravity. Linear gravimeter and astatic gravimeter. Worden gravimeter and Western gravimeter; sensitivity and measuring range. Instrument calibration: determination of the scale factor. Measures of gravity reduction: reduction in free air; Bouguer correction; topographic correction.
3. Magnetism - The physics of magnetism. The magnetic field. The magnetic dipole moment induced by an external magnetic field.
4. Geomagnetism - Geo Magnetic Field (GMF). Calculation of magnetic susceptibility. Permanent and induced magnetization. Dia-, para- and ferromagnetism. Antiferromagnetic and ferrimagnetic substances. Hysteresis cycle. Magnetic variometers. Schmidt balance. Twist magnetometer. Absolute magnetic measures. Related measures. Sensitivity and measuring range. Influence on the measures of the variations in time of GMF: secular variation; GMF variation over long periods of time.
5. Structure of the Earth's crust and lithosphere - Definition of the lithosphere. The oceanic lithosphere. The oceanic crust: structure inferred from seismic data. Structure of the subcrustal lithosphere. Thermal state of the lithosphere. Notes on the convection in the mantle.
6. Elasticity and viscoelasticity - Elasticity and viscoelasticity notes of materials: stress and strain, wave equations, P waves and S waves, surface waves. Reflections and refractions. Reflection coefficient. Angle of refraction. The Snell's law.
7. Seismic waves - Three-dimensional wave equation. Plane waves. P waves and S waves. Surface waves.
8. Seismic methods of reflection and refraction - The case of two horizontal layers with constant vertical velocity.
Bridging Courses
"Physics" is strongly suggested.
Learning Achievements (Dublin Descriptors)
Possessing of basic scientific knowledge and their main applications in Earth system analysis.
Capacity to apply mathematical and physical fundamental laws to solve geophysical problems.
Capacity to plan surveys and to select data forming evaluations about the geophysical problems.
Capacity to communicate in a logical, concise and rigorous way objectives, concepts and work procedures.
Capacity to learn with safety, autonomy and flexibility.
Teaching Material
The teaching material prepared by the lecturer in addition to recommended textbooks (such as for instance slides, lecture notes, exercises, bibliography) and communications from the lecturer specific to the course can be found inside the Moodle platform › blended.uniurb.it
Teaching, Attendance, Course Books and Assessment
- Teaching
Frontal lessons.
- Course books
I. A.Norinelli, Geofisica Applicata, Casa Editrice Patron, Bologna.
II. E.Boschi, M.Dragoni, Sismologia, Casa Editrice UTET, Torino.
- Assessment
Oral examination.
- Disabilità e DSA
Le studentesse e gli studenti che hanno registrato la certificazione di disabilità o la certificazione di DSA presso l'Ufficio Inclusione e diritto allo studio, possono chiedere di utilizzare le mappe concettuali (per parole chiave) durante la prova di esame.
A tal fine, è necessario inviare le mappe, due settimane prima dell’appello di esame, alla o al docente del corso, che ne verificherà la coerenza con le indicazioni delle linee guida di ateneo e potrà chiederne la modifica.
Additional Information for Non-Attending Students
- Teaching
Frontal lessons.
- Course books
I. A.Norinelli, Geofisica Applicata, Casa Editrice Patron, Bologna.
II. E.Boschi, M.Dragoni, Sismologia, Casa Editrice UTET, Torino.
- Assessment
Oral examination.
- Disabilità e DSA
Le studentesse e gli studenti che hanno registrato la certificazione di disabilità o la certificazione di DSA presso l'Ufficio Inclusione e diritto allo studio, possono chiedere di utilizzare le mappe concettuali (per parole chiave) durante la prova di esame.
A tal fine, è necessario inviare le mappe, due settimane prima dell’appello di esame, alla o al docente del corso, che ne verificherà la coerenza con le indicazioni delle linee guida di ateneo e potrà chiederne la modifica.
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