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Uploaded on:
14/02/2009 00:34:19
Digital Asset
File Size:
308.37 KB
1000 x 779 pixels
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P number: P001494
Old photograph number: D01771
Caption: Quarry, west side of Mill Glen, Tillicoultry, Clackmannanshire.
Description: Quartz-dolerite forms a reliable source of good road metal (aggregate). A variety of current and former crushing plant is seen on the left, while behind and to the left are stockpiles of aggregate. The Ochil Fault-intrusion comprises five irregular, discontinuous, pod-like bodies of quartz-dolerite intruded along the plane of the Ochil Fault. Hornfelsed rocks are rocks that have undergone recrystallization due to the heat from a nearby igneous intrusion, they are said to have undergone contact metamorphism. Quartz-dolerite of the Ochil Fault-intrusion forms the face to the left of the photographs. Lavas, hornfelsed by an adjacent diorite intrusion, occur at the right (north). Contact of dolerite and hornfels passes up the right side of the prominent rib of rock to skyline.
Date taken: 01/01/1975
Photographer: Christie, A.
Copyright statement: NERC
Acknowledgment: This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network
X longitude/easting: 291300
Y latitude/northing: 697700
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Landscape
Size: 308.37 KB; 1000 x 779 pixels; 85 x 66 mm (print at 300 DPI); 265 x 206 mm (screen at 96 DPI);
Average Rating: Not yet rated
Categories: Best of BGS Images/ Industrial geology  


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