DE RANCE : UNDERGROUND WATERS IN LINCOLNSHIRE. 37 
Lincolnshire Wells and Borings. 
collingham, or scarle. 
This section was first described by Dr. Hull, F.R.S., late Director 
of the Geological Survey of Ireland ; and subsequently by Mr. Dalton, 
F.G.S., late of the Geological Survey ; and Mr. Wilson, F.G.S., of the 
Bristol Museum. It appears to have been as follows : — 
Depth in feet. Thickness, feet. 
21 
753 
958£ 
1164 
Drift Deposits, river gravel ... ... 21 
Lower Lias Clay Limestone ... ... 29 
Rhaetic Shales and Limestone ... ... 15 
Keuper Marls (Gypsum) .. . ... ... 688 
Keuper Sandstone, fine-grained and grey shales 
Upper Soft Sandstone ... 
753 
iPebblel 
I Beds ( 
Blue Shales 
Reddish-Brown Coarse Sandstone 
1277 Quartzite Conglomerate ... 
1500 Lower Soft Sandstone, Marls in first 79 feet... 
1 618 \ r Permian Marls 
Light Yellow Maguesian Limestone 
Red and Blue Marls and Gypsum ... 
Lower Maguesian Limestone 
Dolomitic Limestone, Marl Slates... 
Lost Cores 
Thin-bedded Dolomites, Grey Shales, and 
Sandstone 
Permian Basement Beds 
Deep Red Indurated Marls, with haematite 
nodules, Carboniferous 
Newark. 
Trent Brewery Well, No. 3, surface level 49 feet. 
Messrs. Mather and Piatt, Manchester, 1870. 
Ft. In. 
! Red and Blue Marls 
Gypsum and Hard Sandy Marl 
Red and Blue Marl, hard bands at 231 feet ... 
205£ 
205J 
> 113 
39 
223 
2019 
2031 
118J 
43J 
138 
26 
58 
16 
118 
1 . 
519 
10 
Sunk by 
Ft. In. 
160 0 
30 0 
125 6 
