Cocken Colliery

Account of Strata sunk through at Cocken Colliery, in an Upcast Shaft close to old Cocken Pit, 1869

Shaft Details

Approximate surface level 188 feet above sea (Ordnance datum)

Switch to measurements in: fathoms, feet & inches, or metres

Geology encountered	Thickness		Depth
	ft.	in.	ft.	in.
Rubbish above natural surface	9	0	9	0
Yellow clay	6	4	15	4
Sand	0	9	16	1
Blue clay	12	0	28	1
Gravel	0	3	28	4
Strong blue clay, with stones	20	0	48	4
Grey metal	3	3	51	7
Post, with metal partings	24	6	76	1
Blue metal	8	3	84	4
Black stone	3	6	87	10
Thill stone	1	0	88	10
Grey metal	6	6	95	4
Blue metal	15	0	110	4
COAL - Maudlin Seam	2	6	112	10
Thill stone	2	8	115	6
Grey leafy post	13	3	128	9
Whin	1	6	130	3
Post	2	0	132	3
Post girdles, with metal partings	7	6	139	9
Blue metal	4	0	143	9
Dark leafy post	10	0	153	9
Grey metal	12	0	165	9
Post, with metal partings	9	3	175	0
Grey metal	6	6	181	6
Post	1	0	182	6
Blue metal	0	6	183	0
COAL - Low Main Seam	2	9	185	9

Source: An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Supplement, published by the North of England Institute of Mining & Mechanical Engineers, 1910

original entry for sinking/boring number 2550 in "An Account of the strata of Northumberland & Durham as proved by Borings & Sinkings, Supplement, published by the North of England Institute of Mining & Mechanical Engineers, 1910"

main page for Cocken Colliery



Mail: Webmaster	Back	Home	Copyright © 1999-2008 by The Durham Mining Museum and its contributors Registered Charity No: 1110608 Page last updated: 01 Jan 2008	Search	Print