1. Era System Series Stage Group Formation SuperGroup Age(Ma) Truethickness(M) BriefDiscription
Silurian Wenlock Homerian Tranearth BirkRiggs 425 -N/ASandstone,Siltstone
428 137.7
Sheinwoodian Brathay
Llandovery Telychian Stockdale Browgill 438 116GraptoliticMudstone
Paleozoic
Aeronian 440 193.2GraptoliticMudstone
Rhuddanian Skelgill Windermere and
Ordovician Ashgill Hirnantian Dent Ashgill Supergroup 444 101.3Conglomerate,Sandstone,
Rawtheyan Mudstone&Limestone
Cautleyan
Caradoc Skiddaw Borrowdale 450 -N/AIgnimbrite,volcanoclastic
Volcanics sandstone&lavas
98
99
21°
BVG
Dent
Browgill
Skelgill
Brathay
Birk Riggs
Abandoned Mine shaft
Cleavage
Dip/Strike
Land infill/Quarry
Fault (inferred)
Boundary (inferred)
20°
48°
38°
30°
44°
44° 30°
44°
52°
30°
44°
44°
27°
36°
42°
45°
54°
56°
30°
20°
44° 40°
47°
48°
28°
56°
42°
44°
37°81°
64°
58°
30°
20°
28°
58°
58°
48°
46°
28°
68°
68°
38°
51°
51°
40°
20°
20°
36°
60°
62°
23°
50°
65° 70°
68°
60°
22°
21° 78°
82°
78°
82°
80°
50°
80°
89°
89°
46°
41°
80°
41°
80°
32°
36°
50°
40°
21°38°
48°
48°
21°
70°
97
96
97
96
99
A
54°
77°
B
45°
68°
N
28 29
27
26
dip of 47°
dip of 45°
dip of 54°
dip of 68°
dip of 77°
420m
200m
Height(Metre’s)
Length (Metre’s)A B
Dextral Strike slip (runs Ashgill/Skelgill boundary)
223m
0m
Half vertical exaggeration
3m
Bedding
Lamination
Overlain material causes trapped water
to be forced down and deforms underlaid
materials
.possible slate (fine grain material)
.volcanic’s present in the outcrop
Irregular bedding deformation
caused by a gas build up which
forced a loose fragment upwards
as seen via its trail left behind.
-seen at: 299971
-Height/Width:1m/0.8m
Geology of the Coniston
area, Lake District
1cm=100m