The image above shows the deposits are level and uniformed.
Close up of blue clay deposit about 1000mmm thick.
Laminated sandy clay deposits interrupting the gravel bed, below?
The image above shows the blue deposit above the gravels.
To the right half of the image above ive cleared the brown red clay from above the blue deposit.
(25,01,12) I now know the blue- grey deposit is thicker than first thought, ive recently found it to be over a metre thick 3 metres up stream.