Ken Murphy, Dyfed Archaeological Trust

1. West Coast Palaeolandscapes

2. Liverpool Bay as it
was …
Photo: RCAHMW
…and as it is now

3. Reid had little formal education but, after studying in his spare
time joined the Geological Survey in 1874, became one of the
Noah’ s Woods
foremost experts of his time on British geology and
palaeobotany.
His 1913 book on “Submerged Forests” discussed the
extensive evidence for coastal change in Britain.
Clement Reid 1853-
1916

4. A wonderful study of the coasts of
Britain. From primary observations
of fossil remains and “moorlog”
(peat deposits) he concluded
that…
“The Dogger Bank once formed the
northern edge of a great alluvial
plain, occupying what is now the
southern half of the North Sea”
Shoreline set at 36m bathymetric
countour

5. „Doggerland‟
(Prof. Bryony Coles)

6. The Colinda Harpoon
"We were halfway between the two North
buoys in mid-channel between the Leman and
Ower..... I heard the shovel strike something. I
thought it was steel. I bent down and took it
below. It lay in the middle of the block which
was about 4 feet square and 3 feet deep. I
wiped it clean and saw an object quite black".
Skipper Pilgrim E. Lockwood
interviewed by Dr H . Muir Evans. 14th March 1932.

7. Photo: Martin Bell
Submerged Forests
Above Rhyl, Denbighshire
Below Borth, Ceredigion
Photo: Nigel Nayling

8. Foreshore Archaeology. A
glimpse of what may
survive beneath the sea.
Photos: Martin Bell

9. Lydstep Haven
Prehistoric footprints of a
child with a compared with
a modern eight year old.

10. 2D Seismics
3D Seismics

11. 2D seismic data
Interpretation of 2D
seismic data with
current seabed
shown red and two
prehistoric river
channels outlined in
green.

12. Interpretation of 3D data –
chrono-stratigraphy

13. The Shotton River
Professor Fred Shotton
(1906-1990)

14. West Coast
Palaeolandscapes
Pilot Project

16. 2D Lines and 3D Features
2D „hits‟, maximum 40% failure rate in legacy 2D data sets. 14.75% in WCPP main project

17. Two big problems
Data Availability
&
Resolution

18. Geophysical data procurement
Liverpool Bay
Bristol Channel

19. Geophysical data analysis and interpretation
Each individual 3D survey was processed
in Kingdom by Amplitude, Hilbert and
RunningSUM methods, then timesliced at
4 millisecond intervals.
The visible features (high
ground, low ground and
palaeochannels) in each
timeslice were then digitised in
Kingdom

20. Geophysical data analysis and interpretation
Results of analysis and interpretation of all the 3D surveys