Geology of the Aberfoyle district: Concealed geology
|This topic provides a summary of the geology of the Aberfoyle district – covered by the British Geological Survey. 1:50k geological map sheet 38E (Scotland).
Authors: C W Thomas, A M Aitken, E A Pickett, J R Mendum, E K Hyslop, M G Petterson, D Ball, E Burt, B Chacksfield, N Golledge and G Tanner (BGS).
Interpretation of the geology at depth within the district is based on available regional gravity and magnetic surveys, and other region-wide studies. Although xenolith assemblages in igneous rocks can provide direct information on magma sources, and/or the mantle and crust through which magmas have travelled from depth, there are no such materials available for the Aberfoyle area itself.
The gravity and magnetic data reflect the densities and magnetic properties of the rocks arising from their compositions. Models of the concealed geology based on geophysical evidence depend on finding plausible solutions that best fit the available data (as discussed, for example, by Trewin and Rollin, 2002).
- Trewin, N H, and Rollin, K E. 2002. Geological history and structure of Scotland. 1–25 in The Geology of Scotland (Fourth edition). Trewin, N H (editor). (London: The Geological Society.)