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La Mure coal mines, La Mure, Isère, Auvergne-Rhône-Alpes, France

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Latitude & Longitude (WGS84): 44° 55' 27'' North , 5° 46' 46'' East
Latitude & Longitude (decimal): 44.92417,5.77944
Other regions containing this locality:The Alps, Europe
Köppen climate type:Cfb : Temperate oceanic climate
Name(s) in local language(s):Anciennes mines de La Mure (Le Villaret-Susville, Prunières, Saint-Arey)
Other/historical region names associated with this locality:Rhône-Alpes


Former coal mines located under the Senépi mountains (west from La Mure), officially started in 1806 and closed in 1997. These mines have operated 6 coal layers in carboniferous (lower stephanian) sandstones deposited on micaschists and covered by triassic and jurassic sediments. All is deformed by the Alpine tectonics in the form of a large syncline (called La Mure dome) that has complicated the coal operation. Several adits (Le Villaret level 15, Les Merlins level 12, Les Rioux level 12...) had cut some mineralized faults (quartz, siderite and dolomite with miscellaneous sulphides) in micaschists or in carboniferous/triassic/liassic sediments. The vugs in these veins have probably given the best sulphides specimens in France! These specimens all date from the time of operation because all adits are now closed and the large dumps near the main adits are only composed of finely crushed rubble...

NB: The coordinates below correspond to the Villaret shaft which was the main shaft of the mining claim but these mines were very large and many adits were dug in the mountains.

Mineral List


25 valid minerals.

Rock Types Recorded

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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

Jurassic
145 - 201.3 Ma



ID: 1382158
Jurassic sedimentary rocks

Age: Jurassic (145 - 201.3 Ma)

Lithology: Sedimentary rocks

Reference: Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d. [18]

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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Haudour J. et Sarrot-Reynauld J. (1954) - Le bassin houiller de la Mure et ses minéraux
Mineralogical Record: 20:483.

External Links

Photographies of the time of operation: http://villaret.blog4ever.com/blog/photos-208956-1.html

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