GP361 : Geophysics I

Department

Department of Geophysics

Academic Program

Bachelor in Geophysics

Type

Compulsory

Credits

03

Prerequisite

GP101

Overview

This course is designed to introduce the basics of gravity as one of the four forces that govern the earth, as well as the devices used for measurement, and also touches on the method of the gravitational recorder and how to process gravitational data, while the second part deals with the basics of the magnetic method and the magnetic field of the Earth and its origin. And the devices used for measurement. Then this course ends with the methods used to collect magnetic data and corrections resulting from internal and external changes.

Intended learning outcomes

By studying the course, the student will be able to :

  • The basic principles of the two methods are gravity and magnetic.
  • To identify the devices used in measuring gravity and magnetic and the method of using them.
  • Statement of the uses of the method (magnetic and gravitational) for exploration and search for oil and minerals

Teaching and learning methods

1. Lectures

2. Solving various problems and exercises

3. Training in computer programs

Methods of assessments

1. The first half-exam is 25% written

2. Second half-examination is 25% written

3. 50% final written exam

4. Success rate of 50% and above

5. The total decision estimate is 100%

Time Frame

Content Breakdown

Session 1 (Week 1)

A general review of the Earth's natural phenomenon of gravity, including its relationship to exploration, with emphasis that the course will be only the basics of the gravity method and the devices used in it

Session 2 (Week 2)

Gravitational force, gravitational acceleration, and Potential gravitational force

Session 3 (Week 3)

The application of Newton's law to masses of large dimensions, the gravitational field and its relationship to the exploration of gravity

Session 4 (Week 4)

Spherical changes of gravity, crustal equilibrium, intensity based on absolute gravity measurements, tides

Session 5 (Week 5)

Gravitational effects on subsurface bodies that have definite shapes.

Session 6 (Week 6)

Gravity devices on the ground, in the air, at sea and in wells

Session 7 (Week 7)

A general review of the Earth’s natural phenomenon magnetism, the relationship of magnetism to exploring what is inside the Earth and knowing the basic principles of the method with an emphasis on the fact that the course includes the basic principles of the magnetic method and the devices used in it

Session 9 (Week 9)

Session 10 (Week 10)

Basic Concepts and Definitions Magnetic Force, Magnetic Field, Magnetic Moment Magnetic Force or Polarization, Magnetic Effect, Magnetic Induction, Residual Magnetism

Session 11 (Week 11)

Rock magnetization, magnetic intensity plates, total magnetic field and its components, magnetic potential and Poisson equation

Session 12 (Week 12)

Earth's magnetism, magnetic elements and their properties, magnetic influence of rocks.

Session 13 (Week 13)

Magnetic effects from buried magnetic objects

Session 14 (Week 14)

Magnetic effects from buried magnetic objects

Session 15 (Week 15)

Instruments used for magnetic measurements on land, in the air and at sea

General Physics I (PH111)
General Chemistry 1 (CH101)
Mathematics 1 (MA100)
Arabic language 1 (AR051)
English Language 1 (EL101)
Physical Geology (GE111)
Arabic language 2 (AR052)
General Physics II (PH112)
Calculus and Analysis principle 2 (MA102)
Historical Geology (GE112)
English language 2 (EL102)
General Geophysics (GP101)
General Chemistry 2 Laboratory (CH103)
General chemistry 2 (CH102)
Structural Geology (GE203)
Mathematics Ш (MA205)
Principles of geophysical exploration 2 (GP 211)
Principles of geophysical exploration 1 (GP 210)
General Physics III (PH210)
Programming Principles (CS110)
Ordinary Differential Equation 1 (MA209)
Introduction to Statistics (ST212)
Earth Geophysics. (GP225)
Seismic Exploration Method 1 (GP223)
Geodesy (GP 212)
Petrophysics (GP 220)
Seismic Exploration Methods 2 (GP312)
Geoelectric 1 (GP313)
Gravity Exploration Method (GP314)
Sedimentation & Stratigraphy (I) (GE305)
Complex Analysis 1 (MA301)
Petroleum Geology (GE310)
Nuclear geophysics (GP413)
Well logging (GP321)
Geoelectric 2 (GP326)
Magnetic Exploration Methods (GP327)
Geophysics I (GP361)
Geophysics I (GP362)
Mathematical Methods in Geophysics (GP415)
Geology of Libya - Elective I (GE405)
Geophysical Seminar I (GP411)
Computer Application in Geophysics (GP426)
Environmental Geophysics (GP418)
BSc Project (GP430)
Remote Sensing & GIS - Elective III (GP XXX)
Field Geophysics (GP425)
Petroleum Systems of Libya - Elective II (GE408)
Geophysical Signal Analysis (GP424)
Formation Evalution (GP423)
Geophysical Seminar II. (GP422)
Seismology (GP421)