Course content

Geophysical mapping and advanced interpretation methods used in exploration for natural resources (ore, industrial minerals, hydrocarbons), other geological and environmental tasks. The focus is primarily on gravimetry and magnetometry. Integration with other exploration methods including seismics. Physical properties and their measurements will include density, magnetic susceptibility, and natural remanent magnetization. Magnetic mineralogy from nano- to mineral scale, and petrology will be discussed in relation to lithospheric magnetization, magnetic mapping and exploration. Advanced interpretation and modelling methods for gravity and magnetic anomalies.

Learning outcome

KNOWLEDGE: Fundamental understanding of methods used in geophysical exploration for natural resources found on- and offshore Norway and other geological and enviromental tasks, and related physical properties of minerals and rocks. Through project work (literature study, software applications) gain an understanding of the relationships between physical rock properties and geophysical responses of rocks. Experience of basic gravity and magnetic data acquisition. Software for modelling and interpretation of gravity and magnetic data.

SKILLS: Students should be able to successfully present their interdisciplinary scientific project combining geology and basic geophysics to the class. Students should be able to include gravity, magnetic and other geophysical data into programs designed to explore for natural resources.

GENERAL COMPETENCE: Students will have a good fundamental understanding of the principles used in the geophysical methods covered in the course. An emphasis will be on understanding of how gravity, magnetic models and maps are made, and how these methods are used in the exploration for natural resources, selected geological and environmental tasks. Students will develop a strong knowledge of physical properties of rocks, and how these are used in the different exploration techniques. After successful completion of the course students should be able to include gravity, magnetic data and maps into broader exploration, and geological projects.

Learning methods and activities

Introductory lectures on geophysical principles and methodology, petrophysical properties of minerals and rocks, and magnetic mineralogy and petrology in relation to lithospheric magnetization and magnetic mapping are given in combination with TGB4280. Practice in applying methods for different types of resources, both on- and offshore. Obligatory field course during one weekend. PhD level project and advanced laboratory work and exercises will be related to self-study which will include practice in applying geophysical methods and concepts for exploration of variety of natural resources (e.g. ore deposits, ultra pure quartz, building stones and hydrocarbons) and other geological and environmental applications. Laboratory exercises will include petrophysical and advanced magnetic measurements of different rock types. Selected papers will be assigned to each student, to be presented in PhD seminars.

Compulsory assignments

• Report
• Lab / Fieldwork
• Project

Specific conditions

Recommended previous knowledge

Good background in physics (or geophysics), geology, mineralogy and petrology.

Required previous knowledge

Requires admission to the PhD programme Engineering, specialization within Geophysics or Geology, or approval from the person with course responsibility.

Course materials

Articles and sections from various textbooks.