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Course Unit Title Course Unit Code Type of Course Unit Level of Course Unit Year of Study Semester ECTS Credits
Gravimetry JFZ419 Elective Bachelor's degree 4 Spring 4

Name of Lecturer(s)

Prof. Dr. Bülent ORUÇ

Learning Outcomes of the Course Unit

1) Analyzing the relationships between Earth's shape, gravity potential, gravity accelaration and geoid.
2) Correlating Pratt, Airy and Vening-Meinesz isostasy theories.
3) Calculating the continental and oceanic lithopspheric bending under a surface load for the flexural model of Vening-Meinesz.
4) Analyzing Bouguer and Free-air anomalies obtained from continental and oceanic margin for the Airy model.
5) Interpreting the gravity anomalies based on the lithospheric bending model.
6) Calculating the lithospheric rigidity and effective elastic thickness from the Bouguer-topography (or batymetry) and Free air-topography (or batymetry) admittance graphics.

Program Competencies-Learning Outcomes Relation

  Program Competencies
1 2 3 4 5 6 7 8 9 10 11
Learning Outcomes
1 Middle High Middle Low High High Middle High Middle Low Middle
2 Middle Middle High Middle High High Low Middle High Middle Middle
3 Middle High Middle Middle Low Middle High Middle High Low Middle
4 Middle High Middle No relation High Low Low Middle Middle Middle High
5 High Middle High High Middle Middle Middle High High Low Middle
6 Middle Middle Low Middle Low High Middle Middle Low High High

Mode of Delivery

Face to Face

Prerequisites and Co-Requisites

None

Recommended Optional Programme Components

No

Course Contents

This course covers;the relationships between eearth's shape, gravity field and geoid, the theory of isostasy, the analysis of Bouguer and free-air gravity anomalies based on the isostasy models, the estimation of lithosphere rigidity and effective lithosphere thickness.

Weekly Schedule

1) Newton's laws
2) Measurement methods of absolute gravity and stabilities of measurement systems
3) Approximate mass and density estimation of the earth from Keppler's third law.
4) The concepts of work and gravity potential
5) Relationships between gravity potential and gravity acceleration and applications on simple shaped geophysical models
6) Definition of flattening and atalet momentum according to the sphere and reference ellipsoid model of the earth
7) Determination of gravity potential and dynamic shape factor of reference ellipsoid
8) Midterm examination/Assessment
9) Gravity of oblate ellipsoid (The variation of normal gravity with geographical latitude)
10) Definition of geoid and relationship between geoid and gravity acceleration
11) Definition of isostasy and Pratt, Airy and Veining-Meinesz isostasy theories
12) Calculation of Bouguer and Free-air gravity anomalies on passive continental-oceanic margin for Airy model
13) Analysis of Bouguer and Free-air gravity anomalies of various tectonic structures and discussion of isostasic conditions for Veining-Meinesz model
14) Relationships between load and flexural of litospheric plate and estimation of effective lithosphere thickness and rigidity from Bouguer-topography (or batymetry) coherence and Free-air- topography (or batymetry) admittance plots
15) Analysis of Bouguer anomaly and geoid map of Turkey
16) Final examination

Recommended or Required Reading

1- Oruç, B. 2012. Teori ve Örneklerle Gravimetri, Umuttepe Yayınları, 132 s., ISBN 978-605-5936-65-5.
2- Turcotte, D.L. and Schubert, G. 2002. Geodynamics (Second Edition), Cambridge University Press, Donald L. Turcotte, Gerald Schubert, ISBN 978-0-521-66186-7.
3- Jacoby, W and Smilde, P.L.2009. Gravity Interpretation Fundamentals and Application of Gravity Inversion and Geological Interpretation, ISBN 978-3-540-85328-2.
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Planned Learning Activities and Teaching Methods

1) Lecture
2) Question-Answer
3) Discussion
4) Drill and Practice
5) Group Study
6) Lab / Workshop
7) Problem Solving
8) Project Based Learning


Assessment Methods and Criteria

Contribution of Semester Studies to Course Grade

40%

 

Number

Percentage

Semester Studies

Midterm Examination

1

60%

Practices

1

40%

 

Contribution of Final Examination to Course Grade

60%

Total

100%

Language of Instruction

Turkish

Work Placement(s)

Not Required