The Flamborough Quaternary Research Group
Cliff measurements at Dane's Dyke Cliff South
Made 6/6/2004 by A Horne, D Gobbett, I Heppenstall, M
Horne & S Jones.
Pegs at 1 metre intervals going "south" from Dane's
Dyke measured above and below a level line:-.
Peg 0
Top of cliff
66cm sand
12 cm clay coarsening to silt
2cm dark brown clay
LINE
1cm dark brown clay
10cm silty clay
7cm brown laminated clay
65cm chalk wash
Chalk
Peg 1
Top of cliff
79cm bedded sand
7.5cm dark brown clayey silt
3.5cm brown silty clay
LINE
3cm brown silty clay
7cm laminated clays
Chalk wash
Peg 2
Top of cliff
127cm sand
12cm brown silts
6cm dark brown clay
5cm bedded clay
LINE
6cm bedded clay
60cm chalk wash
chalk
Peg 3
ca 2 m layered
sands
4cm dark brown clay
10cm silty clay with small chalk pebbles
7cm laminated clay
7cm chalk wash
LINE
35cm chalk wash
Chalk
Peg 4
Boulder clay with chalk pebbles
160cm sand
7cm dark brown clay
5cm silty clay with small chalk pebbles
10 cm laminated clay
13cm chalk wash
LINE
18cm chalk wash
Chalk
Peg 5
Sand
7cm dk brown silty clay
20cm brown laminated clay
25cm chalk wash
LINE
25cm Chalk wash
chalk
peg 6
top of cliff
10cm soil
80cm boulder clay with layers of more & larger chalk
pebbles
300 cm boulder clay with a few small chalk pebbles
200cm bedded sands
13 cm silt
11 cm clay
6cm clay with small chalk pebbles
17cm clay
25cm chalk wash
LINE
26cm chalk wash
chalk
peg 6.5
surface - dip at top of chalk wash is 30 deg
peg 7
1-2 m sand
8cm silty clay
2cm clay
surface dip 20 degs to DD
60cm chalk wash
LINE
Peg 8
Ca 150cm sand
1 cm silty clay
105cm chalk wash
LINE
15cm chalk wash
peg 8.5
dip at top of chalk wash is 20 deg
peg 9
ca 150cm sand
2cm clay
125cm head
LINE
Chalk
Peg 10
Ca 150cm sand
2 cm silty clay
135cm chalk wash
LINE
60cm coarse deposits
storm beach
peg11 -TA 21451 69131
top of cliff
20cm soil
70cm pebbly boulder clay
1.1m cross bedded sand
1.7m chalk boulders
4.1m sand and rubble
1.4 m chalk wash
LINE
10cm chalk wash
38cm coarse chalky head
chalk
peg 12
ca 2 m sand
thin clay
140cm chalk wash (line near base)
1m coarse deposits
storm beach
peg 13
118cm chalk wash
30cm coarse chalky head
LINE
35cm coarse chalky head
crushed chalk
peg 14
155cm chalk wash
45cm coarse chalky head
LINE
25cm coarse chalky head
broken chalk
peg 15
170cm chalk wash
65cm coarse chalky head with some sandstone boulders
LINE
38cm coarse chalky head with some sandstone boulders
crushed chalk
peg16
185cm chalk wash
90cm coarse chalky head with some sandstone boulders
LINE
30cm coarse chalky head with some sandstone boulders
crushed chalk
peg 17
2 m chalk wash with thin sand layers 40 and 54 cm from
base
40cm medium to coarse chalky head
70cm vertical chalk
LINE
Peg 18
Boulders
Sand
2.3m chalk wash with 3cm sand layer 50cm from base
60cm medium to coarse chalky head
marl band
40cm disturbed chalk
LINE
Peg 19
Boulders
Ca 80cm sand
Ca 3 m chalk wash
50cm medium to coarse chalky head
marl
20cm chalk
LINE
Note chalk dipping ca 45 deg away from DD
Peg 20
Ca 30cm sand
Ca 4m chalk wash
50cm medium to coarse chalky head
40cm dipping chalk
LINE
Peg 21
Boulders
Erosion surface
Ca 3m chalk wash
30cm medium to coarse chalky head
55cm chalk
LINE
Peg 22
Boulders
Erosion surface
Ca 2.8 m chalk wash
20cm medium to coarse chalky head
47cm chalk
LINE
Peg 23
Boulders
Erosion surface
Ca 2.6cm chalk wash
40cm medium to coarse chalky head
42cm dipping chalk
LINE
Peg 24
Boulders
Erosion surface
Ca 2.4m chalk wash
30cm coarse chalky head
30cm cryoturbated chalk
Line
30cm cryoturbated chalk
chalk
peg 25
boulders
erosion surface dipping away from DD
ca 1.8m chalk wash
50cm coarse chalky head
17cm cryoturbated chalk
LINE
70cm cryoturbated chalk
chalk
peg 26
boulders
erosion surface
ca 1.8m chalk wash
18cm coarse chalky head
60cm cryoturbated chalk
LINE
Chalk dipping towards DD
Peg27
Boulders
Erosion surface with slight dip towards DD
Ca 1.4 m chalk wash
1 m cryoturbated chalk
30cm chalk dipping towards DD
Line
chalk dipping towards DD
peg ca 27.7
- fault
peg 28
obscured
ca 1.9 m very crushed chalk
80cm chalk dipping away from DD
LINE
ca1.9m very crushed chalk
samples collected -
1 - laminated clays - peg 0
2 - brown silty clays - peg 0
3 - dark brown clay - peg 4
4 - sand - peg 4
{fieldwork report by Mike Horne}
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