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The Flamborough Quaternary Research Group

Danes Dyke Fieldwork April 2010

 Derek, Ian, Mike, Rod & Rodge

 

Cast size measurements in cms

 

"South Side" -

 

The sandstone blocks in the disturbed Chalk -

15x 25  rounded

12 x >35  angular

20 x >30 sub angular

3 x 6 rounded

12 x 12 sub angular.

 

Largest clasts in the "solifluctate deposit"

Long axes are horizontal usually

5 x 2.5; 4 x 2.5; 5 x 2.5; 4 x 2; 5 x 1.5; 3,5 x 3.5; 5 x 3; 6 x 1; 6 x 3.5;  5 x 2.

Mostly chalk but some small erratics of grey flint, yellow quartz, brown sandstone and a hrad black angular rock too.

 

Ca 10 m up the cliff "Chalk boulders in the cliff has no fine matrix at all".

 

"North Side"

log revealed by recent slump  ca 5m from end of cliff - very wet.

 

Largest clasts in the "solifluctate deposit" on this side of the Dyke


Long axes are horizontal usually. Measurements in cms

9 x 3; 5 x 2; 6x 2; 5 x 3; 6 x 1; 4 x 1; 4.5 x 6.

Note - not layered. These are more flattened and angular than the ones on the "south side".

{fieldwork report by Mike Horne}

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