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The Great Flat Lode is a
The Great Flat Lode lies under the southern
The ''Great Flat Lode Trail'', a long circular trail around , Carn Brea is one of Cornwall's
The Wheal Buller Project tells the story of the Count House and of Old Wheal Buller Mine which overlooks the Great Flat Lode Trail
{{Cornwall, state=collapsed Cycleways in Cornwall Rail trails in England Geology of Cornwall Mining in Cornwall
The Great Flat Lode is a mineral
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2 ...
-bearing body of rock under the southern granite slopes of Carn Brea south of Camborne in west Cornwall
Cornwall (; kw, Kernow ) is a historic county and ceremonial county in South West England. It is recognised as one of the Celtic nations, and is the homeland of the Cornish people. Cornwall is bordered to the north and west by the Atlantic ...
, England, UK.
Mining
The Great Flat Lode lies under the southern granite
Granite () is a coarse-grained ( phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies under ...
slopes of Carn Brea and so named because the tin-bearing rock was at an unusually shallow gradient
In vector calculus, the gradient of a scalar-valued differentiable function of several variables is the vector field (or vector-valued function) \nabla f whose value at a point p is the "direction and rate of fastest increase". If the gr ...
of about 10 degrees to the horizontal. In other parts of Cornwall mineral bearing lode
In geology, a lode is a deposit of metalliferous ore that fills or is embedded in a fissure (or crack) in a rock formation or a vein of ore that is deposited or embedded between layers of rock.
The current meaning (ore vein) dates from the 1 ...
s lie at between 60 and 90 degrees to the horizontal. "Lode" is a mining
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic ...
term for a mineral vein. Its small gradient allowed for optimal location of the mines. The minerals were accessed by the South Condurrow Mine (later renamed King Edward Mine
The King Edward Mine at Camborne, Cornwall, in the United Kingdom is a mine wholly owned by Cornwall Council.
At the end of the 19th century students at the Camborne School of Mines spent much of their time doing practical mining and tin dre ...
and used by the Camborne School of Mines
The Camborne School of Mines ( kw, Scoll Balow Cambron), commonly abbreviated to CSM, was founded in 1888. Its research and teaching is related to the understanding and management of the Earth's natural processes, resources and the environment. ...
), Wheal Grenville
Wheal may refer to:
* Wheals, a type of skin lesion
* Brad Wheal (born 1996), British cricketer
* Donald James Wheal (1931–2008), British British television writer, novelist and non-fiction writer
* David John Wheal, Australian businessman
* ...
, South Wheal Frances Mine and the Bassett Mines. The mines were started to obtain copper ore but at greater depths tin was obtained.
Many of the mines amalgamated
Amalgamation is the process of combining or uniting multiple entities into one form.
Amalgamation, amalgam, and other derivatives may refer to:
Mathematics and science
* Amalgam (chemistry), the combination of mercury with another metal
**Pan am ...
and continued production until the First World War
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
.
Trail
The ''Great Flat Lode Trail'', a long circular trail around , Carn Brea is one of Cornwall's Mineral Tramway Trails
The mineral tramways trails are a series of trails located in mid west Cornwall, The trails are as follows:
Current trails
The Coast to Coast trail 17.5 km
From Devoran to Portreath following disused tramways
The Great Flat Lode trail 12 km
A ...
.
References
Footnotes Bibliography *Further reading
* Acton, Bob - Exploring Cornwall's Tramway Trails, vol. 1: Great Flat Lode Trail, 1996, reprinted 2001,External links
The Wheal Buller Project tells the story of the Count House and of Old Wheal Buller Mine which overlooks the Great Flat Lode Trail
{{Cornwall, state=collapsed Cycleways in Cornwall Rail trails in England Geology of Cornwall Mining in Cornwall