Uploaded on:
26/12/2012 10:01:48
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275.70 KB
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P number: P804350
Caption: Old Mill Quarry,Stanton Mill. The Black Shales of the Pendleside Series containing Posidoniella laevis are here seen to rest with unconformity on the limestones of the Lonsdalia subzone. Derbyshire, August 1st 1914.
Description: The shales which show no signs of disturbance rest evenly upon a surface formed by the truncated edges of the limestone beds. This shows the commencement of an anticlinal dome of limestone. If stripped of the shale above, the dome would have a knoll like aspect thus indicating contemporaneous elevation and erosion causing local unconformity. Added note: Grey limestones with strong chert, Carboniferous Limestone, Lonsdalia sub-zone. Black Shales, Pendleside Series.
Copyright statement: NERC
Additional information: From the Geologists' Association Carreck Archive. The Reader Geological Photographs. Long excursions 1914. Part 2.
Orientation: Landscape
Size: 275.70 KB; 1000 x 774 pixels; 85 x 66 mm (print at 300 DPI); 265 x 205 mm (screen at 96 DPI);
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Categories: Special collections/ Geologists' Association 'Carreck Archive'/ T W Reader geological photographs, long excursions 1914. Part 2  

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