GEOLOGY 3016 - Igneous and Metamorphic Geology III
North Terrace Campus - Semester 1 - 2015
General Course Information
Course Code GEOLOGY 3016 Course Igneous and Metamorphic Geology III Coordinating Unit School of Physical Sciences Term Semester 1 Level Undergraduate Location/s North Terrace Campus Units 3 Contact Up to 7 hours per week Available for Study Abroad and Exchange Y Prerequisites GEOLOGY 2502 Course Description This course is concerned with aspects of the long-term thermal and material history of the earth's lithosphere and mantle. The course has as its foundation the basic skills learnt at level II in Igneous and Metamorphic Geology II. Included amongst the skills learnt in this course are understanding of the governing theory describing high temperature element partitioning between fluids and melts, the thermodynamic theory that governs and predicts sub-solidus mineral growth and reaction and the principles of natural radioactive decay and the application of isotopes to geochronology. Metamorphic Geology: This examines the nature and change of sub-solidus mineral assemblages and textures in rocks. This information provides a sound basis with which to examine orogenic processes. Igneous Geology: This section examines the physical controls on the generation and differentiation of silicate melts within the earth and the contribution these processes have made to the composition of the crust and mantle through time. Part of this section of the course is devoted to case studies of magma generation in key tectonic settings on the current earth and the extrapolation of this knowledge back through time.
Course Coordinator: Professor John Foden
The full timetable of all activities for this course can be accessed from Course Planner.
Course Learning Outcomes
A successful student in this course should be able to: 1 Identify and interpret intrusive, volcanic, sedimentary, and metamorphic textures in rocks; 2 Understand different geochronological techniques and their applications and igenous and metamorphic processes; 3 Explain how absolute pressure-temperature information is extracted from rock using thermodynamic expressions; 4 Understand the key factors that govern the diversity of igneous rock compositions; 5 Understand how the occurrence and character of different igneous and metamorphic rock suites is governed by and reflects the Earth's tectonic processes; 6 Describe current models for the lithosphere and asthenosphere; 7 Interrogate and interpret the geological literature on igneous and metamorphic geology; 8 Write clear and concise geological reports on the tectonic history of an area; 9 Understand the methodology of scientific research in the field of igneous and metamorphic geology; 10 Work in a team to produce a presentation about a current tectonics research topic.
University Graduate Attributes
This course will provide students with an opportunity to develop the Graduate Attribute(s) specified below:
University Graduate Attribute Course Learning Outcome(s) Knowledge and understanding of the content and techniques of a chosen discipline at advanced levels that are internationally recognised. 1-10 The ability to locate, analyse, evaluate and synthesise information from a wide variety of sources in a planned and timely manner. 8,9,10 An ability to apply effective, creative and innovative solutions, both independently and cooperatively, to current and future problems. 8 Skills of a high order in interpersonal understanding, teamwork and communication. 10 A proficiency in the appropriate use of contemporary technologies. 2,3 A commitment to continuous learning and the capacity to maintain intellectual curiosity throughout life. 1-10 A commitment to the highest standards of professional endeavour and the ability to take a leadership role in the community. 8
Recommended ResourcesWINTER, J.D. (2008) Principles of Igneous and Metamorphic Petrology (2nd edition). Prentice Hall, pp. 766. ISBN 0-321-59257-3.
SPEAR, F.S. (1993) Metamorphic phase equilibria and pressure-temperature-time paths. MONOGRAPH. Mineralogical Society of America, Washington, D.C., pp. 799. ISBN 0-939950-34-0.
BARKER, A. J. (1998) Introduction to metamorphic textures and microstructures (Second Edition). Stanley Thornes (Publishers) Ltd., pp. 264. ISBN 0-7487-3985-8.
YARDLEY, B.W.D., MACKENZIE, W.S. & GUILFORD, C. (1990) Atlas of metamorphic rocks and their textures. Longman Scientific and Technical, Harlow, Essex, pp. 120. ISBN 0-582-30166-1
YARDLEY, B.W.D. (1989) An Introduction to Metamorphic Petrology. Addison Wesley Longman, Edinburgh Gate, Harlow, Essex, pp. 248. ISBN 0-582-30096-7.
VERNON, R. H., CLARKE, G.L. (2008) Principles of metamorphic petrology. Cambridge University Press, pp. 446. ISBN 978-0-521-87178-5.
MCBIRNEY, A., 1993: Igneous petrology 2nd Edition. Jones & Bartlett Publishers.
FAURE, G., 1986. Principles of isotope geology, 2nd edition, Wiley and Sons.
ROLLINSON., H. 1993. Using geochemical data: evaluation, presentation, interpretation. Longman.
Learning & Teaching Activities
Learning & Teaching ModesThe course consists of:
- 2 x 1-hour lectures/week
- 1 x 5-hour practical class per week
The information below is provided as a guide to assist students in engaging appropriately with the course requirements.A student enrolled in a 3 unit course, such as this, should expect to spend, on average 12 hours per week on the studies required. This includes both the formal contact time required to the course (e.g., lectures and practicals), as well as non-contact time (e.g., reading and revision)
Learning Activities Summary
Schedule Lecture Practical Week 1
Review of Metm II
Introduction to petrography
Refresher + (re)introduction to metamorphic minerals and mineral reactions in metapelitic & metabasic rocks Week 2 Petrography Part 3
Introduction to thermobarometry
Petrology of metapelitic and metabasic rocks with in-class feedback Week 3
Introduction to thermobarometry
Mineral zoning, diffusion and geo-speedometry
Petrology of metapelitic and metabasic rocks with in-class feedback Week 4 Mineral zoning, diffusion and geo-speedometry
Heat flow, heat sources in the continental crust and subduction metamorphism
Petrology of metapelitic and metabasic rocks with in-class feedback Week 5
Pressure temperature-time paths
Role of fluids during metamorphism
Practical exam on Petrography Week 6
Mineralisation and metamorphism – the sulfur connection
Constraining absolute rates in metamorphic systems (geochronology)
Thermobarometry: conventional thermobarometry + using pseudosections to interpret pressure-temperature evolution of rocks looked at in pracs in weeks 2 to 4; Week 7 Igneous Rocks: their structures and textures
The chemistry, mineralogy and classification of igneous rocks
The phase rule: phase diagrams and igneous processes Magma petrogenesis, movement and modification: Layered mafic intrusions
Basalt genesis and its mantle source
Modelling trace elements and isotope evolution
Week 8 The oceanic crust and lithosphere: rifting and decompressional melting
Hot spots and plumes
Geochronology Week 9 Controls on elemental substitution in mineral structures
Distribution coefficients and the control and modelling of the partitioning of trace elements
Petrology of granitic rocks Week 10 The systematics of radiogenic isotopes: The Rb-Sr, Sm-Nd, U-Pb and K-Ar systems
The earth’s reservoirs and the history of their isotopic signatures
Field trip to Adelaide Fold Belt (TBC on MyUni) Week 11 The dating of rocks using radiogenic isotopes: Isochrons, accessory minerals and the U-Pb scheme.
The role of volatiles including H2O in magma generation and differentiation: Subduction-related magmatism
No Practical Week 12 The geochemistry subduction-related magmas: the identification of multiple sources
Volcanology: explosive volcanism, pyroclastic rocks and the impact of volatiles on ascending magmas.
No Practical Week 13
Melting of continental crustal rocks
Alkaline magmas, diamonds, kimberlites and carbonatites
The University's policy on Assessment for Coursework Programs is based on the following four principles:
- Assessment must encourage and reinforce learning.
- Assessment must enable robust and fair judgements about student performance.
- Assessment practices must be fair and equitable to students and give them the opportunity to demonstrate what they have learned.
- Assessment must maintain academic standards.
Assessment Task Task Type Percentage of total assessment Hurdle
Learning Outcome Due Date In-class petrography exercises (metamorphic) Formative
No 1,2,3,9,10 Weeks 1-6 Practical class exam (metamorphic) Summative 13% No 1,3,8 Week 5 In-class petrology and petography excercises (igneous) Summative
17% No 1,2,3,4,9,10 Weeks 7-12 Online Quizzes Summative
15% No 2,3,4,5,9 Weekly Mid Year Theory Exam Summative 51% No 2-9 Mid year exam period
In class petrography exercises (4%)
Held in class
In class Metamorphic Practical Exam (13%)
This exam is held in the normal practical class (4 hours duration) in week 5 after the metamorphic practical component of the course. It covers the content in the metamorphic practicals.
In-class petrology and petrography exercises (17%)
The Igneous component of the practical course is examined by assessment of in-class petrology and petrography exercises.
On-line Quizzes (15%)
These cover both the igneous and metamporhic sections
Mid-Year Theory Exam (51%)
A three hour paper in the mid year exam period. Divided into two sections (Igneous and Metamorphic) of equal mark division (25.5% each). Examines all course content.
SubmissionIf an extension is not applied for, or not granted then a penalty for late submission will apply. A penalty of 10% of the value of the assignment for each calendar day that is late (i.e. weekends count as 2 days), up to a maximum of 50% of the available marks will be applied. This means that an assignment that is 5 days or more late without an approved extension can only receive a maximum of 50% of the mark
Grades for your performance in this course will be awarded in accordance with the following scheme:
M10 (Coursework Mark Scheme) Grade Mark Description FNS Fail No Submission F 1-49 Fail P 50-64 Pass C 65-74 Credit D 75-84 Distinction HD 85-100 High Distinction CN Continuing NFE No Formal Examination RP Result Pending
Further details of the grades/results can be obtained from Examinations.
Grade Descriptors are available which provide a general guide to the standard of work that is expected at each grade level. More information at Assessment for Coursework Programs.
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