Module OSX-3017:
Applied Geophysics
Module Facts
Run by School of Ocean Sciences
20 Credits or 10 ECTS Credits
Semester 1
Organiser: Dr Dei Huws
Overall aims and purpose
This module concerns itself with the principles of geophysical surveying within the context of applied marine geoscience; specifically for its use in engineering and environmental geophysics. As such, the practical elements of the module relate to relatively shallow sub-surface coverage (typically <100m) and high resolution (sub-metric) – though the theory taught is generally scale-independent. This module forms an important part of the programme specification in Geological Oceanography since it deals with understanding the different techniques with which the earth’s sub-surface can be mapped as well as the theory underpinning these techniques (and therefore the limitations as well as power of the methods). As in all aspects of the programme, there is a strong practical element to this module and students are given the opportunity to use industry-standard software and hardware as part of the exercises involved. The aim of the module is to enable the student to have a broad overall understanding of geophysical surveying for engineering and environmental applications; but this coupled with the theoretical and practical understanding that enables them to critically analyse the acquired datasets. In outline, the module comprises of seismic surveying (refraction and reflection), electrical methods (EM and resistivity) and potential field methods (magnetics).
Course content
In list form, the syllabus can be summarised thus:
Seismic surveying
a. Propagation of seismic waves in the subsurface
b. Field hardware
c. Seismic refraction surveying
d. Seismic reflection surveying
e. Seismic data processing
f. Seismic interpretation
Electrical and electro-magnetic surveying
a. Underlying theory
b. Data acquisition techniques
c. Interpretation techniques
d. Application to terrestrial and marine studies
Magnetic surveying
a. Underlying theory
b. Magnetometers
c. Reduction of data
d. Introductory interpretation techniques for engineering geophysical applications
Assessment Criteria
excellent
Thorough understanding of the principles of geophysics (within the scope of the curriculum, learning outcomes and skills outlined in sections 14 to 17 of this form) Highly developed appreciation and limited understanding of the underlying theory and potential limitations/power of geophysical techniques for sub-surface imaging and geological interpretation Highly developed ability to solve numerical problems associated geophysical investigation Highly developed ability to acquire, process, interpret and present geophysical data
threshold
A partial understanding of the principles of geophysics (within the scope of the curriculum, learning outcomes and skills outlined in sections 14 to 17 of this form) Basic appreciation and some understanding of the underlying theory and potential limitations/power of geophysical techniques for sub-surface imaging and geological interpretation Basic ability to solve numerical problems associated geophysical investigation Basic ability to acquire, process, interpret and present geophysical data
good
A complete understanding of the principles of geophysics (within the scope of the curriculum, learning outcomes and skills outlined in sections 14 to 17 of this form) Comprehensive appreciation and limited understanding of the underlying theory and potential limitations/power of geophysical techniques for sub-surface imaging and geological interpretation Ability to solve numerical problems associated geophysical investigation Ability to acquire, process, interpret and present geophysical data
Learning outcomes
-
Upon successful completion of this module, students should be able to: demonstrate an understanding of the physics which governs the earth’s geophysical response – specifically in relation to seismic, electrical, electro-magnetic and magnetic and techniques.
-
Demonstrate a knowledge of the hardware and software used in the field of environmental and engineering geophysics
-
Acquire, process and interpret geophysical data using appropriate theory and software
-
Show an appreciation of the limitations of the geophysical method.
Assessment Methods
Type | Name | Description | Weight |
---|---|---|---|
COURSEWORK | Resistivity excercise | 20 | |
COURSEWORK | Seismic interpretation | 30 | |
EXAM | Exam | 50 |
Teaching and Learning Strategy
Hours | ||
---|---|---|
Fieldwork | Magnetics and EM field survey |
3 |
Lecture | Formal lectures (30 x 1 hrs) |
30 |
Workshop | Resistivity problem sheet workshop |
3 |
Practical classes and workshops | Computer-based exercise (1 x 8 hrs, 1 x 4 hrs seismic interpretation computer exercise) |
12 |
Private study | Assessment work-up, self-study work during the lecture series and examination revision |
152 |
Transferable skills
- Numeracy - Proficiency in using numbers at appropriate levels of accuracy
Courses including this module
Compulsory in courses:
- F651: MOcean Geological Oceanography year 3 (MOCEAN/GO)
- F652: MSci Geological Oceanography year 3 (MSCI/GO)
- F734: MSci Physical Oceanography year 3 (MSCI/PO)
Optional in courses:
- F650: BSC Geological Oceanography year 3 (BSC/GEO)
- 8S54: BSc Geological Oceanography (with International Experience) year 4 (BSC/GEOIE)
- F7F6: BSc Ocean and Geophysics year 3 (BSC/OGP)
- F840: BSc Physical Geography and Oceanography year 3 (BSC/PGO)