The youngest part of the London Clay, known as the Claygate Beds or Claygate Member forms a transition between the clay and the sandier Bagshot Beds above. This is shown separately on many geological maps, and often caps hills. It is up to 15 metres (49 ft) thick at Claygate, Surrey. It is now believed to be diachronous, with the formation at Claygate for example being the same age as the end of the fourth cycle of deposition further east.
Read more about this topic: London Clay
Famous quotes containing the word beds:
“See where my Love sits in the beds of spices,
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And interlaced with curious devices
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And with sweet music makes the ground to move,
Whilst I, poor I, do sit in heavy plight,
Wailing alone my unrespected love;”
—Bartholomew Griffin (d. 1602)