Igneous and metamorphic rocks; mineral deposits
Most of the preceding sections have concentrated on sedimentary materials, which are stratified and readily organised into a sequence of map units. Each unit tends to have an overall tabular shape, being bounded at its top and bottom by roughly parallel surfaces, which enables three dimensional interpretations from maps and sections. We have, however, to be more cautious with non-sedimentary materials, for their shape can be much less regular. It is with these that this chapter is concerned.
KeywordsMetamorphic Rock Lava Flow Igneous Rock Mineral Deposit Fault Rock
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Selected further reading
- Compton, R. R. (1985). Geology in the Field, New York, Wiley.(Has chapters on volcanic, plutonic and metamorphic rocks, parts of which are relevant to mapwork. )Google Scholar
- Roberts, J. L. (1982). Introduction to Geological Maps and Structures,Oxford, Pergamon.(Chapter 6 includes a discussion on the portrayal of igneous rocks on maps.)Google Scholar