ERB222 Igneous Petrology and Geochemistry
To view more information for this unit, select Unit Outline from the list below. Please note the teaching period for which the Unit Outline is relevant.
| Unit code: | ERB222 |
|---|---|
| Prerequisite(s): | ERB205 or ERB220 |
| Equivalent(s): | ERB206 |
| Credit points: | 12 |
| Timetable | Details in HiQ, if available |
| Availabilities |
|
| CSP student contribution | $1,164 |
| Domestic tuition unit fee | $4,968 |
| International unit fee | $6,216 |
Unit Outline: Semester 2 2025, Gardens Point, Internal
| Unit code: | ERB222 |
|---|---|
| Credit points: | 12 |
| Pre-requisite: | ERB205 or ERB220 |
| Equivalent: | ERB206 |
| Coordinator: | Scott Bryan | scott.bryan@qut.edu.au |
Overview
Igneous rocks comprise the bulk of the Earth's crust and are formed by geological processes, many of which cannot be directly observed as they occur at relatively high temperature and pressure within the Earth. The structure, texture, mineralogy and chemical composition of igneous rocks therefore provide fundamental clues from which the origin of these rocks can be interpreted. This information can then be used to address larger scale geologic issues, such as the hazard risk and future eruptive potential of volcanoes, constraining magma generating processes and source regions deep within the Earth that lead to a diverse spectrum of magma compositions generated and erupted at the Earth's surface, and the tectonic development of plate boundaries.
Learning Outcomes
On successful completion of this unit you will be able to:
- Explain the key processes involved in the generation of igneous rocks.
- Apply universally adopted methods (for example the IUGS system) of rock classification and nomenclature.
- Recognise and describe mineral assemblages and textures of igneous rocks, in field and laboratory settings using both hand specimen and optical microscopic techniques.
- Analyse and interpret the textural, mineralogical and geochemical features of rocks to explain their origin and evolution.
- Formulate, test and summarise hypotheses using field and laboratory observations.
- Prepare maps and reports that communicate petrologic observations in a professional manner.
Content
In this unit, we will introduce the fundamental principles of petrology. For the petrology of igneous rocks, we will focus on the three main ways melting of rock within the Earth generates magmas, with emphasis on mantle melting that produces a wide variety of basaltic magmas. Binary and ternary phase diagrams, geochemical principles of high temperature silicate systems are used to understand these melting processes. Magmatic processes from deep to shallow levels in the crust, from melting and magma transport to storage and eruption are examined. The role of water in magma generation at subduction-related settings is introduced. Field studies are included in this component. Training in methods of geochemical data collection, evaluation, and presentation will be undertaken to describe the chemical variety of igneous rocks and explore what relationships and connections might exist between different magmas in terms of igneous processes or source regions.
Learning Approaches
As a second year unit, this unit builds upon the foundational knowledge learned in the first year of the degree. In this unit you are expected to take responsibility for your learning and undertake some self-directed learning to improve your understanding of and skills in recognising the breadth and depth of different igneous rock types.
Teaching and learning strategies include formal real-time lectures, recorded lectures, recorded practical background videos, real-time practical sessions, workshops, and fieldwork. Interactive lectures introduce the central concepts of igneous petrology and geochemistry, utilising peer-to-peer learning to apply these concepts. Workshops will explore and expand on concepts introduced in lectures.
Practical exercises are structured in two parts. Formal practical sessions are based on the petrographic examination (using industry-standard equipment and technique) of specific igneous rock types to develop an in-depth understanding of the major igneous rock types found on Earth. Additional practical sessions emphasize self-study, in which you expand your knowledge via the examination of a variety of rock samples that can have more complex petrographic/lithologic features. Geochemical data will be integrated with petrographic observations and centred around the development of a geologic map.
A compulsory field excursion examining igneous rocks will provide an introductory mapping experience, extend laboratory observations through application, and formulating and testing of hypotheses. A report and map based on this fieldwork develops your ability to communicate outcomes in a professional manner. Field mapping to produce a geological map, and the field identification of rocks are fundamental skills for practicing earth scientists, geologists, geotechnical scientists and mining engineers. The ability to work in field environments is also a highly sought after skill by industry employers. The field components of this unit therefore provide you with real-world learning experiences and preparation for your post-graduate career.
Overall, you can expect to spend approximately 10-15 hours per week on average dedicated to preparing for and attending all scheduled classes and the the 4-day field trip, undertaking self-directed study to expand and consolidate your learning, completing assessment tasks.
Feedback on Learning and Assessment
You will receive oral feedback in practical sessions on a weekly basis. Oral and written feedback will be provided on examinations and written feedback (formative and summative) on project reports.
Assessment
Overview
There are three assessments tasks spread across the semester. They successively build academic knowledge (examination), develop real-world skills (applied field project), and further problem solving with the geochemical project.
Unit Grading Scheme
7- point scale
Assessment Tasks
Assessment: Examination (written)
Theory and Practical - Igneous Petrology and Petrography (Summative).
Assessment: Field Project (applied)
Igneous Field Trip Project Report (Formative/summative) and Field Map.
This is an assignment for the purposes of an extension.
Assessment: Problem Solving Task
This problem-solving task involves the use, analysis and interpretation of geochemical data from igneous in a geologic and/or tectonic map context.
Academic Integrity
Academic integrity is a commitment to undertaking academic work and assessment in a manner that is ethical, fair, honest, respectful and accountable.
The Academic Integrity Policy sets out the range of conduct that can be a failure to maintain the standards of academic integrity. This includes, cheating in exams, plagiarism, self-plagiarism, collusion and contract cheating. It also includes providing fraudulent or altered documentation in support of an academic concession application, for example an assignment extension or a deferred exam.
You are encouraged to make use of QUT’s learning support services, resources and tools to assure the academic integrity of your assessment. This includes the use of text matching software that may be available to assist with self-assessing your academic integrity as part of the assessment submission process.
Breaching QUT’s Academic Integrity Policy or engaging in conduct that may defeat or compromise the purpose of assessment can lead to a finding of student misconduct (Code of Conduct – Student) and result in the imposition of penalties under the Management of Student Misconduct Policy, ranging from a grade reduction to exclusion from QUT.
Requirements to Study
Costs
Students will be required to purchase safety glasses (approximately $7 to $12) for use while collecting rock samples and a hand lens ( approximately $15). There will be a minor cost associated with the field trip for meals.
Resources
All learning materials fo support your learning in this unit will be available in your Canvas unit site. The unit also has a recommended textbook detailed below. You will need to also purchase some safety equipment, the details of which are below.
Resource Materials
Recommended text(s)
Frost BR, and Frost CD (2019) Essentials of Igneous and Metamorphic Petrology. Cambridge University Press (available as e-textbook, hardback and paperback),
Reference book(s)
Blatt, H, Tracy, R and Owens, B (2006) Petrology: Igneous, sedimentary, and metamorphic. New York: WH Freeman
Hefferan, K and O'Brien, J (2010) Earth Materials, UK: Wiley-Blackwell (online version)
Jerram, D and Petford, N (2011) The Field Description of Igneous rocks 2nd Edition, Wiley
Philpotts, AR and Ague JJ (2022) Principles of Igneous and Metamorphic Petrology. Cambridge University Press (available as e-textbook and hardback).
Safety and protective equipment
Students will be required to purchase safety glasses (approximately $7 to $12) for use while collecting rock samples and a hand lens (approximately $15).
Risk Assessment Statement
Workplace Health and Safety requirements relevant to this unit relate particularly to fieldwork. A risk assessment is undertaken for the field excursion in accord with FoS requirements. You will be provided with safety guidelines prior to each trip. Daily reminders are given at the beginning of each field day. A diary is kept with regard to all safety reminders and issues. A qualified first aid officer accompanies each trip in accord with University guidelines.
Course Learning Outcomes
This unit is designed to support your development of the following course/study area learning outcomes.ST01 Bachelor of Science
- Develop a broad, multidisciplinary understanding of science and a specialised, in-depth knowledge of at least one discipline.
Relates to: ULO1, ULO3, ULO4, Examination (written), Field Project (applied), Problem Solving Task - Use higher order thinking skills to design, plan, and conduct investigations and evaluate data to address scientific questions and challenges.
Relates to: ULO4, ULO5, Examination (written), Field Project (applied), Problem Solving Task - Develop and demonstrate key competencies in scientific practices and relevant technologies.
Relates to: ULO2, ULO3, Examination (written), Field Project (applied), Problem Solving Task - Communicate scientific findings, concepts and evidence-based reasoning to diverse audiences using a variety of methods.
Relates to: ULO6, Field Project (applied) - Work autonomously and collaboratively with others in an inclusive and professional manner and use critical reflection for personal and professional growth.
Relates to: ULO5, ULO6, Examination (written), Field Project (applied), Problem Solving Task
SV02 Bachelor of Science
- Develop a broad, multidisciplinary understanding of science and a specialised, in-depth knowledge of at least one discipline.
Relates to: ULO1, ULO3, ULO4, Examination (written), Field Project (applied), Problem Solving Task - Use higher order thinking skills to design, plan, and conduct investigations and evaluate data to address scientific questions and challenges.
Relates to: ULO4, ULO5, Examination (written), Field Project (applied), Problem Solving Task - Develop and demonstrate key competencies in scientific practices and relevant technologies.
Relates to: ULO2, ULO3, Examination (written), Field Project (applied), Problem Solving Task - Communicate scientific findings, concepts and evidence-based reasoning to diverse audiences using a variety of methods.
Relates to: ULO6, Field Project (applied) - Work autonomously and collaboratively with others in an inclusive and professional manner and use critical reflection for personal and professional growth.
Relates to: ULO5, ULO6, Examination (written), Field Project (applied), Problem Solving Task