London clay

Lord Kelvin Baltimore lectures. London Clay, C. J. and Sons 1904... 

Frequently fossils are found, particularly in London Clay, consisting of pyrites, the decaying organism having presumably reduced sulphates of iron present in the infiltrating waters. 

Brown, G., 1961, Mineralogical Soc. of London, Clay Mineral Group, London, 544pp. 

Cainozoic (or Tertiary) Eocene 60 Dorset ball clays, London clay, Reading beds, Bracklesham Beds. Pebbles, sands, lignite... 

Clays of Eocene age occur in two principal areas- the Hampshire Basin and the London Basin. These deposits are used for brick-making in various localities, and include the clays of the Reading Beds, the London Clay, the Brackleshani Beds (Isle of... 

Cooke, R. W., Price, G., and Tarr, K. (1979), Jacked piles in London clay A study of load transfer and settlement under working conditions. Geotechnique, 29, No. 2, pp. 113-147. 

Table 5.15. Strength of weathered (brown) and unweathered (blue) London Clay (after Cripps and Taylor, 1981)...

Burnett, A.D. and Fookes, P.G. 1974. A regionai engineering geoiogicai study of the London Clay in the London and Hampshire Basins. Quarterly Journal Engineering Geology, 7, 257-296. 

Hutchinson, J.N. 1973. The response of the London Clay cliffs to differing rates of toe erosion. Geologicia Applicata e Idrogeologla, 8, 221-239. 

Hutchinson, J.N. 1967. The free degradation of London Clay Cliffs, Proceedings of the Geotechnical Conference on Shear Strength Properties of Natural Soils and Rocks, Norwegian Geotechnical Institute, Oslo, pp. 113-118. 

Hutchinson, J.N. Gostelow, T.P. 1976. The development of an abandoned cliff in London Clay at Hadleigh, Essex, Philosophical Transactions, Royal Society of London, Series A., Volume 283, pp. 557-604. 

London Clay. A tertiary clay used in making building bricks in Surrey, Berkshire, Essex, Suffolk, Dorset, Wiltshire, and Hampshire. 

Skempton, A. W. 1959. Cast-In Situ Bored Piles in London Clay, Geotechnique, Vol. 9, pp. 153-173. 

The geological conditions in and around a site have a major influence on the risk of gas migration. A commonly used value of 250 m is often incorrectly perceived as being the limit to which gas migration can occur. Migration has been observed to occur for distances up to 400 m along open features (e.g. open faults or other similar features). Conversely there have been sites where no migration has been observed as close as 10 m to sources that are surrounded by impermeable clay (e.g. London clay). 

FIGURE 17.9 Clay stabilizing performance of borates versus conventional inhibitors. (Bottle rolling test London clay (2-4 mm) 16 h at 20°C.)... 

Site Investigations were undertaken at some 9 locations on the network during 1994/95. Investigations have found the embankments to generally comprise a central London Clay fill core mostly the spoil laid uncompacted from adjacent cuttings and then overlain with 1-2m of ash on the crest, and also thence as an irregular cover to the side slopes. 

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