(Doniford Bay Foreshore) - 2002
Doniford Bay consists of the Lower Lias, and Triassic beds. The Red and green striped rocks which can be seen on the East of the bay are the Mercia Mudstones. The gray Helwell Marls can be seen to the West. The Jurassic lias at Doniford are the youngest of the lias at Somerset and marks the uppermost beds of the Lower lias. Horizons of the Doniford Shale's can be located and at low tide, near the Watchet Fault, the Aldergrove beds can be seen.
(Scour at Doniford Bay Foreshore) - 2003 [Dave D]
(Scour at Doniford Bay Foreshore) - 2003 [Dave D]
(Pleistocene fluvial deposits) - 2002
The Pleistocene deposits seen in the photo above are not precisely dated. Many years ago, reports of mammoth and other bones were made, however nothing has been seen for decades. Unfortunately the best exposures have now been covered up by tip cast over the face.
|
|
Late |
Volgian |
Portlandian |
|
142 to 147 |
| Tithonian |
| 147 to 150 |
|
Late |
150 to 154 |
| Early |
|
Corallian |
154 to 159.4 |
| Late Oxford Clay |
Middle |
Callovian |
Middle Oxford Clay |
159 to 165 |
| Early Oxford Clay |
| Kellaways |
| Late Cornbrash |
| Bathonian |
Early Cornbrash |
165 to 170 |
| Forest Marble |
| Frome Formation |
| Wattonensis Beds |
| Fullers Earth |
| Zigzag Beds |
| Bajocian |
Late Inferior Oolite |
170 to 177 |
| Middle Inferior Oolite |
| Aalenian |
Early Inferior Oolite |
177 to 180.1 |
| Scissum Beds |
| Bridport Sands |
Early |
Toarcian (Late Lias) |
180 to 190 |
| Pliensbachian (Middle and Early Lias) |
190 to 195 |
| Sinemurian (Early Lias) |
195 to 201 |
| Hettangian (Early Lias) |
201 to 205.7 |
|
Triassic |
Late |
Rhaetian |
Penarth group |
206 to 210 |
| Mercia Mudstone group |
| Norian |
210 to 220 |
| Carnian |
220 to 227.4 |
Middle |
Ladinian |
227 to 233 |
| Anisian |
233 to 241.7 |
Early |
Scythian |
Olenekian |
242 to 244 |
| Induan |
244 to 248.2 |
| Dunrobin Bay Formation |
Lady's Walk Shale |
Golspie |
| White Sandstone |
Golspie |
| Carbonaceous Siltstone |
Golspie |
Mercia Mudstone Group (Norian, Carnian, Ladinian)
210 - 233 MYA |
FORMATIONS AND DEPOSITS |
LOCATIONS |
M
E
R
C
I
A
M
U
D
S
T
O
N
E
G
R
O
U
P
|
Red (Keuper) Marls |
Aust
Watchet
St Audries Bay
Doniford Bay
Blue Anchor |
| Tea Green Marls |
Aust
Lilstock
Blue Anchor |
| Blue Anchor Formation |
|
| Sully Beds |
|
|
1:250 000 Geological Map of Doniford Bay
Geological Maps are sold either Flat or Folded for Solid, or Seabed geology. Special editions may be available for certain locations. For a complete list click the link below.
Click here to BUY ONLINE from our Store |
|
1: 50 000 Geological Map of Doniford Bay
Geological Maps are sold either Flat or Folded for Solid, Drift or combined geology. Special editions and memoirs are available for certain locations. For a complete list of
1: 50 000 maps, click the link below.
Click here to BUY ONLINE from our Store |
