More Info: Ullyott, J.S., Nash, D.J. and Huggett, J.M. (2015) Cap structures as diagnostic indicators of silcrete origin. Sedimentary Geology 325, 119-131.
More Info: Ullyott, J.S., Nash, D.J., Whiteman, C.A. & Mortimore, R. (2004) Distribution, petrology and mode of development of silcretes (sarsens and puddingstones) on the eastern South Downs, UK. Earth Surface Processes and Landforms 29: 1509-1539.