in brick clamps, and used for building nearby. The hole often remained and became a pond. References The engineering properties and behaviour of the brickearth of south Essex K. J. Northmore, F. G. Bell and M. G. Culshaw, doi: 10.1144/GSL.QJEGH.1996.029.P2.04 May 1996 Quarterly Journal of Engineering Geology and Hydrogeology, 29, 147-161. Sediments Types of soil