GEOL361 Geophysics of the Earth

Purpose

There are two primary aims of this course: The first is to provide students with an introduction to geophysical phenomena and techniques, while the second is to examine the simple physics that describe the dynamic behaviour of the earth.

Through acquisition, reduction and interpretation of data from their own local geophysical surveys, the students will become familiar with the use of geophysical methods in understanding the near surface. Students will gain field experience with seismic, gravity, magnetic and electrical geophysical techniques. We will utilise Web-based tutorial sessions for reduction and interpretation of the local surveys. Using the knowledge gained from local practical studies we then examine larger New Zealand and international geophysical data sets to investigate the structure of the earth generally and specifically the geophysical signatures of petroleum and mineral resources.The second aim of the course is to examine more deep seated processes that govern the dynamic behaviour of the earth. We shall investigate the physics of forces that drive core and mantle flow, earthquakes, mountain building and fluid flow. Simple modelling techniques are introduced so that students can perform simulations of the earth's thermal and mechanical behaviour. Students who complete this course should have a working knowledge of the practical application of geophysical methods at scales appropriate for exploration of mineral resources, evaluation of petroleum basins and also to the larger scales of determination of earth structure.

Prerequisite

EAOS 111 Earth and Ocean Science

GEOL 112 Dynamic Earth: A New Zealand Perspective

and either GEOL 112 or 18 points in PHSI

Background requirements

Basic knowledge of elementary mathematics and physics.

Teaching staff

Dr Andrew Gorman

Format

Second semester, 24 lectures (Thur 8 am, 12 noon), 14 tutorials, 12 labs (Thurs 2 - 4.50 pm).

Fieldwork

Local geophysical surveys on land and at sea.

Assessment

50% internal assessment; 50% - Final Examination

Textbooks

Mussett, A.E. and Khan, M.A. 2000. Looking into the Earth. Cambridge University Press.