Room and Pillar workings, Lochaline sand mine
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- Uploaded on June 3, 2008
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by jstefant -
Extra information
- Camera: OLYMPUS IMAGING CORP. E-500
- Taken on 2008/05/25 15:16:27
- Exposure: 0.033s (1/30)
- Focal Length: 17.00mm
- F/Stop: f/3.500
- ISO Speed: ISO400
- Exposure Bias: 0.00 EV
- Flash fired
Comments (2)
jstefant, on June 4, 2008, said:
The Lochaline glass-sand is a very high purity silica sand occurring in a 3m (approx) thick bed immediately below the Tertiary lavas of the south-western tip of Morvern in Scotland. It is easily mined and processed and is dispatched by ship from a jetty just topside of the ferry terminal at Lochaline itself. It is worked on the "room and pillar" method by driving 4m (approx) wide tunnels on a regular grid pattern, leaving substantial pillars of rock to support the overlying strata. Although the make of water is not excessive, the air is moist and the ventilation currents carry a light mist rendering photography tricky.
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Xpeditor, on June 30, 2010, said:
Your pix are top notch! Brought back memories of the Boro, Redcar and Saltburn. Are the Blue Lagoons still there near Great Ayton?
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