Uploaded on:
13/02/2009 06:59:52
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186.59 KB
1000 x 728 pixels
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P number: P000546
Old photograph number: C03960
Caption: Dumbarton Rock.
Description: The vent contains a plug of microporphyritic olivine-basalt of Jedburgh/Dalmeny type and of Lower Carboniferous age intruded into Devono-Carboniferous sediments. The plug occurs within a screen of vent agglomerate and collapsed sediment. Dumbarton Rock is a crag-and-tail, the 'tail' of which descends eastwards beneath marine and alluvial deposits. This prominent landmark is one of a group of volcanic vents situated north of the River Clyde at Dumbarton and that cut the Lower Carboniferous sediments. It lies at the south-western end of the Dumbarton-Fintry line of volcanic centres.
Date taken: 01/05/1948
Photographer: Fisher, W.D.
Copyright statement: Crown
Acknowledgment: This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network
X longitude/easting: 239500
Y latitude/northing: 674500
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Landscape
Size: 186.59 KB; 1000 x 728 pixels; 85 x 62 mm (print at 300 DPI); 265 x 193 mm (screen at 96 DPI);
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Categories: Best of BGS Images/ Images from the archives  


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