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Allenheads Mine (Beaumont Mine), East Allendale, North Pennines, Northumberland, England, UK

This page kindly sponsored by Ru Smith
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Latitude & Longitude (WGS84): 54° 48' 11'' North , 2° 13' 4'' West
Latitude & Longitude (decimal): 54.80306,-2.21778
GeoHash:G#: gcwrv894f
UK National Grid Reference:NY860454
Other regions containing this locality:Northern Pennine Orefield, England, UK
The Pennines, England, UK
Locality type:Mine
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.


Mineral List


10 valid minerals.

Regional Geology

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

Late Carboniferous
298.9 - 323.2 Ma



ID: 3160982
Late Carboniferous sandstone

Age: Pennsylvanian (298.9 - 323.2 Ma)

Lithology: Major:{sandstone}, Minor{siltstone,mudstone}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Bashkirian - Visean
315.2 - 346.7 Ma



ID: 2036067
Yoredale Group

Age: Carboniferous (315.2 - 346.7 Ma)

Stratigraphic Name: Yoredale Group

Lithology: Limestone, sandstone, siltstone and mudstone

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Early Carboniferous
323.2 - 358.9 Ma



ID: 3186080
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. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

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Dunham, K. C., 1990, Geology of the North Pennines Orefield, v. 1, 2nd ed., British Geological Survey, 299 p.

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