Unit convenor and teaching staff |
Unit convenor and teaching staff
Unit Convenor
Mark Lackie
Contact via mark.lackie@mq.edu.au
12 WW (E7A) 108
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Credit points |
Credit points
3
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Prerequisites |
Prerequisites
3cp from GEOS units at 100 level
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Corequisites |
Corequisites
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Co-badged status |
Co-badged status
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Unit description |
Unit description
Lectures in this unit cover, at an introductory level, some of the important geophysical approaches which are used by Earth scientists to explore and understand the Earth's interior. Included are the methods of collecting and interpreting gravity, magnetic, seismic and electrical data and their use in assembling the presently held picture of the crust, mantle and core. Practical classes involve reducing and interpreting geophysical data from both exploration and global problems. An excursion provides an opportunity to carry out a field survey and interpret the results in terms of geological structure and environmental aspects.
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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:
If you receive special consideration for the final exam, a supplementary exam will be scheduled in the interval between the regular exam period and the start of the next session. By making a special consideration application for the final exam you are declaring yourself available for a resit during the supplementary examination period and will not be eligible for a second special consideration approval based on pre-existing commitments. Please ensure you are familiar with the policy prior to submitting an application. You can check the supplementary exam information page on FSE101 in iLearn (bit.ly/FSESupp) for dates, and approved applicants will receive an individual notification one week prior to the exam with the exact date and time of their supplementary examination
Name | Weighting | Hurdle | Due |
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Assignment | 10% | No | TBA |
Quizzes | 14% | No | TBA |
Field Report | 26% | No | Week 13 |
Examination | 50% | No | University Examination Period |
Due: TBA
Weighting: 10%
An assignment based on the practical work
Due: TBA
Weighting: 14%
There will be three (3) Quizzes, each worth about 5% of the assessment. These will be held during the session, during week 4, week 8 and week 13. They will consist of short answer or multiple choice questions relating to the lecture material from the period preceding the quiz. Dates will be confirmed in class.
Due: Week 13
Weighting: 26%
Performance at, and the report on the field excursion will be assessed, and make up 26% of the final mark. The due dates for external and internal students will be determined in consultation with students at the excursions.
Due: University Examination Period
Weighting: 50%
There will be a two-hour final examination covering the material presented during the unit, and counting for 50% of the final mark. The examination will consist of a number of short answer questions on definitions and concepts, followed by an essay section requiring further description of concepts and theory.
The textbook for the unit is MUSSETT and KHAN (Looking into the Earth, 2000). The textbook will be available from the COOP Bookshop. Copies of the PowerPoint’s shown in the lectures will be available on the unit’s WEB page. The recommended textbook is an excellent text for second year, but you can also consider some of the third year textbooks as well.
The texts you should first consider are DENTITH AND MUDGE (Geophysics for the Mineral Exploration Geoscientist, 2014); SHARMA (Environmental and Engineering Geophysics, 1997) and REYNOLDS (An Introduction to Applied and Environmental Geophysics, 1997), because they cover all the major geophysical topics, and are the recommended texts for the Exploration and Environmental Geophysics I (GEOS305) unit. They have the further advantage of consistently using the SI system of units.
In previous years we used a text by SHARMA (Geophysical Methods in Geology, 2nd Ed, 1986), but this is now out of print. SHARMA covers the global aspect of geophysics in more detail and is a useful reference to have if you can find a 2nd hand copy. In 1998, we used PARASNIS (Principles of Applied Geophysics, 5th Ed) but a change in publisher meant a massive increase in its cost.
However, it is a useful text to refer to if you can find a 2nd hand copy. Other useful texts to consider are; TELFORD ET AL (Exploration, fairly mathematical); KEAREY & BROOKS (Exploration, current 3rd year exploration text); FOWLER (Good solid-earth coverage, used in GEOS386); SLEEP & FUJITA (Solid-earth, more mathematical). The solid earth aspect of this unit is best covered in FOWLER. It is strongly recommended that you have access to a geophysical textbook, particularly if you are studying externally.
The unit also has a WEB site which can be found through the iLearn WEBSITE at https://ilearn.mq.edu.au/login/MQ/ . This site contains information such as copies of colour images, copies of PowerPoint’s shown in class, and copies of the practicals that we do in class. The WEB site will also allow access to the digital version of the lectures recorded through the iLecture system. As well, this site will access the on-line quizzes that will need to be completed during the Session. At the start of the year you should be issued with a username and password (Macquarie oneID) to access all the WEB sites available for the units you have taken. This will get you into the front page of the GEOS205 WEB site.
Information for students about access to online units is available at
https://ilearn.mq.edu.au/login/MQ/
I recommend that you use Mozilla Firefox as your browser, as it seems to have far less problems than Internet Explorer with iLearn
DATE |
LECTURER |
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TOPIC |
PRACTICAL |
Week 1
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Mark Lackie Steve Hansen |
L1 L2 |
Introduction Wave motion and seismic waves |
How long does it take? |
Week 2
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Steve Hansen |
L3 L4 |
Seismographs and Travel time curves Earthquakes |
Seismic waves |
Week 3
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Steve Hansen Craig O’Neill |
L5 L6 |
Seismic exploration GPR |
Earthquake Interpretation |
Week 4
|
Mark Lackie |
L7 L8 |
Gravity: Fundamental principles Reduction of gravity data |
External Quiz 1 GPR & Refraction Interpretation |
Week 5
|
Mark Lackie Craig O'Neill |
L9 L10 |
Modelling and Interpretation of gravity data Isostasy |
Reduction of Gravity Data |
Week 6
|
Mark Lackie |
L11 L12 |
Physics of magnetism The Earth's magnetic field |
Gridding & Isostasy |
Residential Class |
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Week 7
|
Mark Lackie |
L13 L14 |
Magnetic Surveying Techniques Interpretation of magnetic data |
*Gravity Modelling |
Mid Semester Recess
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Week 8
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Kate Selway |
L15 L16 |
Introduction to electrical methods Methods of electrical surveying |
External Quiz 2 Magnetic Modelling |
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Possible Field Excursion |
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Week 9
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Kate Selway |
L17 L18 |
Induced Polarization,self potential Electromagnetic exploration |
Field data intro *Three layer Resistivity |
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***Field Excursion |
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Week 10
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Mark Lackie |
L19 L20 |
Palaeomagnetism Reversals, geomagnetic time scale |
*Field data Compilation |
Week 11
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Mark Lackie Craig O’Neill |
L21 L22 |
Radiometric surveying Geothermics |
*Field data Compilation |
Week 12
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Mark Lackie |
L23 L24 |
GPS Exploration Geophysics |
*Field data Compilation |
Week 13
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Craig O’Neill |
L25 L26 |
Geophysics of the Lithosphere Satellite Geophysics |
External Quiz 3 Field data Compilation |
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Updated assessment, schedule and delivery and resources.
2018: Updated assessment and schedule.