Igneous-petrology

Course title: Petrology Course Number: Course: GEO-2004 University University of Tromsø – The Arctic University of Norway ECTS credits: 6 ECTS credits Target group: The course cannot be taken as a single topic. The course is compulsory for students in the bachelor’s program in geology. Duration: 3 hours/week Time table: Timetable and location 2020 Spring – course GEO-2004-1  Exam: Written exam/The course ends with a 4 hour written exam. Grade scale: Letter grades A-F, where F is not passed. Admission to the exam requires approved exercises and excursion report. Exam date: The examination date is preliminary and may be changed. The final exam date is announced at uit.no/examen and on the student web at the beginning of May for the spring semester and the beginning of November for the fall semester. Required previous knowledge: – GEO-2001 Mineralogy

Course Objective:

The course will give the basics of igneous and metamorphic petrology. After completing the course, the students can develop knowledge of common mineral compositions in magmatic and metamorphic rocks. The students can interpret different petrological processes and tectonic environments from observations in hand-specimens and field relations.

Knowledge:

After completing the course, the student can:

• explain the origin of magma from partial melting of crustal and mantle rocks
• explain different magma differentiation processes
• explain the relationship between mineral composition, rock’s chemical composition and metamorphic pressure and temperature conditions
• predict what types of magmatic and metamorphic rocks will be found in different tectonic environments
• describe and interpret mineral compositions and microstructures in magmatic and metamorphic rocks

Skills:

After completing the course, the student can:

• describe mineral types and relative amounts in magmatic and metamorphic rocks from observations in hand-specimens and thin-sections
• interpret the geological history of magmatic rocks based on mineral composition and texture
• use mineral compositions in metamorphic rocks to explain pressure and temperature conditions and interpret the tectonic environment
• present mineral compositions and metamorphic reactions using simple phase diagrams

Course contents:

The course includes two parts: igneous petrology and metamorphic petrology. The following contents are for the igneous petrology part of the course.

• • • Introduction to the study of magmatic rocks, the Earth’s interior, the thermal and the chemical structure of the Earth, introduction to plate tectonics and the classification of igneous rocks (lecture_1)
    • Igneous rock textures, introduction to thermodynamics of igneous systems and CIPW norm (lecture_2)
    • Igneous rock structures, field relationships and introduction to high-temperature geochemistry (Major, Trace and Rare Earth Elements). (lecture_3)
    • Mantle melting, generation of basaltic magma, diversification of magmas, magmatic differentiation, partial melting, crystal fractionation, volatile transport, liquid immiscibility, magma mixing and assimilation (lecture_4)
    • Introduction to the layered mafic intrusions and mid-ocean ridge volcanism (lecture_5)
    • Introduction to the ocean intraplate volcanism and continental flood basalts (lecture_6)
    • Introduction to the island arc and continental arc magmatism (lecture_7)
    • Introduction to the granitoid rocks, continental alkaline magmatism and anorthosites (lecture_8)

Teaching method:

Lectures, practical and 4 days field excursion

Interaction methods + brainstorms using real examples

Course contents/material:

Book will be used are: J.D. Winter (Principles of Igneous and Metamorphic Petrology)
Three versions of the book are available at the NH library with the number (551.2). Search the book here (if you are outside the UiT camp, this link maybe will not work in a proper way). Many freely PDF versions of the book are available online.

 

Lectures	YouTube lectures	Book chapter	Practical classes	Model answers	Notes
Lecture_1 Lecture_2 Lecture_3 Lecture_4 Lecture_5 Lecture_6 Lecture_7 Lecture_8	Lecture_1 Lecture_2 Lecture_3 Lecture_4 Lecture_5 Lecture_6 Lecture_7 Lecture_8	Ch1 & 2 Ch3, 5, 6 & 7 Ch4, 8 and 9 Ch10 & 11 Ch12 Ch13 & 14 Ch15, 16 & 17 Ch18, 19 & 20	Lab#1 Lab#2 Lab#3 Lab#4 Lab#5 Lab#6 Lab#7 Lab#8	Lab#1 Lab#2 Lab#3 Lab#4 Lab#5 Lab#6 Lab#7 Lab#8	The model answers will be available one week after the class

Excel sheet for the CIPW Norm

Videos used in lecture_1

Heat transfer

 

Plate tectonics_1

 

Plate tectonics_2

 

Post-Course Survey:

Post-course survey (GEO-2004)

Post-Course Evaluation:

Post-course evaluation (GEO-2004)