That's it for now.
We can check the maps for exact locations, but there is a lot of reading needed to find the background details . . . and that still wouldn't help with the main problems, that we don't know the full details of the images. Most are thin sections under polarised light . . . but we don't know the polarisation details, we don't know the minerals . . .
Any further information would be appreciated. Contact the secretary though the top 'Contact Us' button.