Geophysical Interpretation of Geological Structures

Recommended Prerequisites

Structural Geology; Stratigraphy; Geophysics; Applied Geophysics.

Teaching Methods

-Theoretical classes with detailed explanation, using audiovisual media, scattered throughout the semester, in line with the practical classes;

-Resolution of theoretical and practical exercises related to the topics addressed;

-Resolution of practical exercises with computer support.   

Learning Outcomes

1. Identify the main geological structures

2. To recognize the application of the various geophysical methods in the study of sedimentary basins and hydrocarbon exploration

3. To recognize and understand the physical principles that form the basis of geophysical methods

4. Modeling of geophysical data and identify and interpret geological structures

5. Know select the best suited geophysical prospecting methods and the most favorable sampling grid to situations which arose

6. Know relate the geophysical methods with geostrutural models

7. To recognize the existence of ambiguities in the interpretation of geophysical / structural models

8. Learn to communicate in written and oral form, information on examples of geological structures and data processing methods and geophysical interpretation, using bibliographic sources and appropriate analysis methodologies

9. To understand the geological characteristics of the sedimentary basins and the geophysical methods used in their studies.

Work Placement(s)

No

Syllabus

1. Geological structures and contexts

1.1. Non tectonic

1.2. Tectonic

1.3. Evaporitic

2. Seismic Reflection prospecting

2.1. Application

2.2. 2-D and 3-D data acquisition

2.3. Data processing

2.4. Seismic stratigraphy and structural interpretation

2.5. Construction and interpretation of isobaths and isopach maps

2.6. Ambiguity of interpretation

3. Gravity Prospecting

3.1. Application

3.2. Principles and instruments

3.3. Gravity field measurements and redutions

3.4. Interpretation and modelling of gravity data

3.5. Ambiguity of interpretation

4. Magnetic prospecting

4.1. Application

4.2. Earth's magnetic field.

4.3. Magnetic susceptibility of rocks

4.4. Magnetic field measurements and magnetic gradient

4.5. Magnetic effects of simple geometry bodies

4.6. Interpretation of data

5. Diagraphy prospectiong

5.1. Application

5.2. Type: Electric; radioactive; seismic; by induction; magnetic.

Head Lecturer(s)

Eduardo Ivo Cruzes do Paço Ribeiro Alves

Assessment Methods

Assessment
Report of a seminar or field trip: 10.0%
Laboratory work or Field work: 15.0%
Resolution Problems: 20.0%
Mini Tests: 20.0%
Exam: 35.0%

Bibliography

Bruin, G., Huck, A. & Bouanga, 2010. Introdução ao OpendTect. Trad. e adapt. E. I. Alves. 109pp. DCT-FCTUC.

Henry, G., 1997. Geophysics For Sedimentary Basins. Éd. Technip, Paris, França

Lowrie, W., 2007. Fundamentals of Geophysics, Cambridge Eds

 Jackson, M., Roberts, D., Snelson, S. (Ed), 1996. Salt Tectonics: A Global Perspective. AAPG Mem. 65, 41-60

 Mitchum, R., Jr., Vail, P., 1977. Seismic Stratigraphic Interpretation Procedure. C. Payton (Ed). AAPG Mem. 26, 135-143

Mohriak, W., Szatman, P., Anjos, S., 2008. Sal. Geologia e Tectônica. Exemplos nas Bacias Brasileiras. Beca Ed. Ltda

Nettleton, L., 1991.  Elementary Gravity And Magnetics For Geologists And Seismologists. Monograph S.1, Society Of Exploration Geophysicists, Tulsa, E.U.A.

 Schoeffler, J., 1975. Gravimétrie Appliquée Aux Recherces Struturales Et A La Prospection Pétrolière Et Minière. Éd. Technip, Paris

Vera Torres, J., 1994. Estratigrafia. Princípios Y Métodos. Editorial Rueda, Madrid