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Wheal Malkin, Ding Dong Mine, Boskednan, Madron, St Just District, Cornwall, England, UK

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Latitude & Longitude (WGS84): 50° 9' 15'' North , 5° 35' 33'' West
Latitude & Longitude (decimal): 50.1541666667, -5.5925
UK National Grid Reference:SW434345
Other regions containing this locality:Devon and Cornwall metalliferous mining district, England, UK


A small and very old tin mine in the western part of the Ding Dong sett, which was already working in 1714, but abandoned a long time before 1814, in which year Ding Dong Mine was restarted. In 1822, Forbes noted: "Ding Dong, like Huel Neptune, consists of an old and shallower mine not now worked, conjoined with the part now worked, which is deeper. These two portions are united by means of a gallery at the depth of 50 or 60 fathoms under surface. To the westward of this more antient part of the present Ding Dong there is still an older mine (Huel Malkin) adjoining, but not, I believe, actually communicating with the present mine. Huel Malkin has been entirely abandoned for many years."

Wheal Malkin worked on the western part of Malkin Lode, one of the major ENE-trending lodes in the Ding Dong sett. During the 1850s, when the eastern part of Ding Dong Mine was exhausted, work was directed to the western parts, and Greenburrow Shaft was sunk in the old Wheal Malkin section. The engine house ruin at this shaft is still a conspicuous landmark, which overlooks the valley to the west.

It has been reported that some tin was found in this mine in veins of fluorite (Carne, 1822), which is a unique mode of occurrence in this mining district.

Mineral List


2 valid minerals.

Geochronology

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Paleozoic
  Permian
   Guadalupian
ⓘ Major polymetallic mineralization~270 MaCornwall, England, UK
   Cisuralian
ⓘ Porphyry dikes intruded (latest age)~275 MaCornwall, England, UK
ⓘ Greisenization (latest age)~280 MaCornwall, England, UK
ⓘ Porphyry dikes intruded (earliest age)~280 MaCornwall, England, UK
ⓘ Formation of metallized pegmatites~285 MaCornwall, England, UK
ⓘ Greisenization (earliest age)~285 MaCornwall, England, UK
ⓘ Emplacement of major plutons~295 MaCornwall, England, UK

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

Permian - Carboniferous
252.17 - 358.9 Ma
Unnamed Igneous Intrusion, Carboniferous To Permian

Age: Paleozoic (252.17 - 358.9 Ma)

Lithology: Felsic-rock

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

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



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References

- Carne, J. (1822): On the relative age of the veins of Cornwall. Transactions of the Royal Geological Society of Cornwall 2, 49-128.
- Forbes, J. (1822): On the temperature of mines. Transactions of the Royal Geological Society of Cornwall 2, 159-217.

External Links


 
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