(Jurassic Lower Lias Resting on the Triassic Bone beds of Aust) - 2002
The uppermost beds at the top of Aust Cliff are marine deposits from the Lower Lias. Just below this level, too dangerous to reach from above and too high to reach from the ground is the Westbury Formation from the Rhaetic beds. The red coloured beds are the older Triassic layers of the Keuper and Tea Green beds, these where formed in desert like conditions and are unfossiliferous. Together these two Triassic beds make up the Mercia Mudstone Group and Penarth Group.You may also find the odd hard carboniferous limestone rock which has been washed from the River Avon brought from the Bristol area.
(Aust Cliff) - 2002
(Aust Cliff) - 2002
|
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 |
|
|
FORMATIONS AND DEPOSITS |
LOCATIONS |
P
E
N
A
R
T
H
G
R
O
U
P
|
Lilstock Formation |
Langport Member |
Lilstock
Blue Anchor
|
| Cotham Member |
Lilstock
Blue Anchor
|
| Westbury Formation |
Aust
Blue Anchor |
|
1:250 000 Geological Map of Aust
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 Aust
Geological Maps are sold either Flat or Folded for Solid, Drift or combined geology. Special editions may be 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 |
