Unit convenor and teaching staff |
Unit convenor and teaching staff
Other Staff
Tracy Rushmer
Contact via tracy.rushmer@mq.edu.au
Unit Convenor
Simon Turner
Contact via simon.turner@mq.edu.au
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Credit points |
Credit points
3
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Prerequisites |
Prerequisites
GEOS207 and GEOS272
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Corequisites |
Corequisites
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Co-badged status |
Co-badged status
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Unit description |
Unit description
This unit explores the behaviour and evolution of silicate magmas and aqueous fluids in both the crust and mantle. We use examples of mafic/ultramafic and intermediate-silicic magmatic rock associations, and their associated fluids and ore deposits to investigate the geochemistry and petrology of magmatic systems. Such associations are investigated from a deposit to mantle domain scale. Physical attributes of magma-fluid systems and isotopes are considered as exploration and petrogenetic tools. Important ore deposits in sedimentary basins are also considered. Practical work involves integrating geochemical databases with microscopic investigation of key magmatic suites.
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Information about important academic dates including deadlines for withdrawing from units are available at https://www.mq.edu.au/study/calendar-of-dates
On successful completion of this unit, you will be able to:
Name | Weighting | Due |
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Assignment 1 | 15% | 28/3/2014 |
Assignment 2 | 15% | 9/5/2014 |
Practical assessments | 10% | Ongoing |
Practical exam | 20% | 13/06/14 |
Written Exam | 40% | TBC |
Due: 28/3/2014
Weighting: 15%
You will be assigned one of 5 topics relating to the origin, geochemistry, petrogenesis and mineralisation within the Bushveld Complex.
This assignment differs from conventional essays in that it is a true research review style articles. As such it is anticipated that your primary reference sources will be peer reviewed scientific literature that is appropriately cited and referenced. Some articles of this nature are included in iLearn under each topic to get you started. Note that you will be expected to supplement these with at least four extra research articles that you find through your own research. You must use figures to illustrate key concepts.
These are assignments of at least 1000 words and a maximum of 1500 words, and are designed to give you some grounding in the material to be covered in the week they are due to be handed in.
Due: 9/5/2014
Weighting: 15%
You will be assigned one of 5 topics relating to the origin, and geodynamics of some Ore Deposits
This assignment differs from conventional essays in that it is a true research review style articles. As such it is anticipated that your primary reference sources will be peer reviewed scientific literature that is appropriately cited and referenced. Some articles of this nature are included in iLearn under each topic to get you started. Note that you will be expected to supplement these with at least four extra research articles that you find through your own research. You must use figures to illustrate key concepts.
These are assignments of at least 1000 words and a maximum of 1500 words, and are designed to give you some grounding in the material to be covered in the week they are due to be handed in.
Due: Ongoing
Weighting: 10%
A maximum of four practicals will be submitted for assessment during the semester. You will be notified which at the start of a given weeks practical.
Due: 13/06/14
Weighting: 20%
1 hour, open book prac exam using the petrographic microscope.
Due: TBC
Weighting: 40%
2 hour theory exam, covering all aspects of the course, including practical work.
2 hours of lectures per week followed by a 3 hour practical session. Attendance is compulsory.
iLearn contains links to electronic resources for the assignments and supplementary material for practicals and lectures.
Technology and Resources: We use iLearn for easy delievery.
We have changed the times for 2014 and added new expertise in volcanic systems.
Week |
Lectures |
Practical |
Presenter |
1 7/3 |
Nomenclature, tectonic associations; chemistry and mineralogy refresher |
Petrology refresher, volcanic rocks |
BFS |
2 14/3 |
i) Phase equilibria, melting processes; ii) Binary and Ternary systems |
Bushveld I: Mineralogy, textures, macroscopic layering |
SPT |
3 21/3
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Geochemistry: i) Major elements ii) Trace elements |
Bushveld II: Textural relationships; petrogenetic sequences, liquid line of descent and binary phase diagrams |
SPT |
4 28/3
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i) Origin of basaltic magma ii) Diversification of magmas
1st assignment due (Bushveld) |
Major element modelling; inflections due to modal mineralogy changes
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SPT Prac in comp suite |
5 4/4
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Basaltic magmatism in ocean basins i) MORB ii) OIB iii) LIPs and CFBs
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Primary magma compositions (chilled compositions) Forward and inverse melt modelling |
SPT Prac in comp suite |
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6 8/4
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Island Arc Magmatism |
Bulk mixing, discriminating between mixing vs AFC, isochron |
CF Prac in comp suite |
Mid semester Break (12/4 – 27/4 2014) |
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7 2/5
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Volcanology |
Volcanic rocks; alkalic systems
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MT
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8 9/5
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Principles of ore petrogenesis; S saturation, differentiation, accumulation, phase equilibria (redox) 2nd assignment due (Geodynamics and ore deposits) |
Bushveld III: Reflected light microscopy; textures, mineralogy, chemical compositions |
BFS |
9 16/5
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Mineralising processes: BIFs, hydrothermal systems, placers, redox (U), regolith |
Hand specimens, mineralogy, reflected light of examples |
BFS |
10 23/5 |
Granites, I, S, A, crustal growth and evolution, skarns; sedimentary provenance, detrital systems |
Crustal mass balance, granite petrogenesis from TS and hand specs |
BFS |
11 30/5 |
Isotopes in magmatic and ore forming systems: Stable, cosmogenic, U-series, |
Isotope geodynamics prac |
BFS |
12 6/6 |
Solar system and planet formation, atmospheric formation and evolution, meteorites |
Practical Exam
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BFS/guest lecturers from ANU |
13 13/6 |
Practical exam, Room E5A210 |
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