Allenheads Mine (Beaumont Mine), East Allendale, North Pennines, Northumberland, England, UK
|Latitude & Longitude (WGS84):||54° 48' 11'' North , 2° 13' 4'' West|
|Latitude & Longitude (decimal):||54.80306,-2.21778|
|UK National Grid Reference:||NY860454|
|Other regions containing this locality:||Northern Pennine Orefield, England, UK|
The Pennines, England, UK
|Köppen climate type:||Cfb : Temperate oceanic climate|
The most productive mine in the orefield under the Beaumonts and subsequently the Weardale Lead Co., who started working the mine in the 1940's for fluorspar.
The British Steel Corporation began the re-opening of the mine in 1969-70, under the name Beaumont Mine. Unfortunately, the hoped-for reserves of fluorspar were not found and by 1983, with all the equipment still intact, pumping had ceased and the mine was at a standstill.
While the mine failed to produce the anticipated commercial product, some important specimen finds occurred during the British Steel operation. Most notable were the pale lavender, twinned fluorites associated with sphalerite and siderite found circa 1970 in the remnants of flats along the Diana Vein.
10 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
298.9 - 323.2 Ma
|Late Carboniferous sandstone|
|Bashkirian - Visean|
315.2 - 346.7 Ma
323.2 - 358.9 Ma
|Paleozoic sedimentary rocks|
Age: Mississippian (323.2 - 358.9 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529.