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UK | |
| Kemp, A.J., Palmer, M.R., and Ragnarsdottir, K.V. (1994) The uranium-thorium and rare earth element geochemistry of reduction nodules from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 8, Part 3. |
| Green, D.I., Hubbard, N., and Ince, F. (2008) A review of the occurrences of the copper vanadate minerals volborthite and tangeite in the British Isles. Journal of the Russell Society, vol. 11, 54-58. Kemp, A.J., Powell, S.J., Palmer, M.R., and Ragnarsdottir, K.V. (1996) Computer aided analysis of x-ray images in mudstone concretions from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 9, 41-44. Kemp, A.J., Palmer, M.R., and Ragnarsdottir, K.V. (1994) The uranium-thorium and rare earth element geochemistry of reduction nodules from Budleigh Salterton, Devon. Proceedings of the Ussher Society, Volume 8, Part 3, 214-218. |
| Alysson Rowan collection |
| southampton.ac.uk (n.d.) http://southampton.ac.uk/~imw/Torquay.htm?fbclid=IwAR09kGlfwrCDT855y-DRd36uHahVEe9LW2f2RHySR4C5wCyaj2Via4XqQf4 |
| Alysson Rowan collection |