| P number: | P001776 |
|---|---|
| Old photograph number: | B00552 |
| Caption: | Bass Rock, East Lothian. A phonolite plug. |
| Description: | Bass Rock, East Lothian. A phonolite plug. The Bass Rock is an intrusion of phonolite, which fills a volcanic vent which was active in Carboniferous times, c. 320 million years ago. Its resistance to erosion has left it upstanding when the surrounding sedimentary rocks have been eroded below sea level, and marine erosion has produced steep cliffs. There is a lighthouse on the island, and in the late spring and early summer it provides a safe nesting environment for thousands of sea birds. |
| Date taken: | Fri Jan 01 00:00:00 GMT 1892 |
| Photographer: | Lunn, R. |
| Copyright statement: | Crown |
| Acknowledgment: | This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network |
| X longitude/easting: | 360300 |
| Y latitude/northing: | 687400 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Landscape |
| Size: | 180.74 KB; 1000 x 762 pixels; 85 x 65 mm (print at 300 DPI); 265 x 202 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images, Geoscience subjects/ General views/ Igneous rock country, Geoscience subjects/ Igneous features/ Volcanic vents, necks and plugs |
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