| P number: | P000242 |
|---|---|
| Old photograph number: | B00296 |
| Caption: | Stream section about 0.805 km. north of Kildonan Castle, south-east Arran. Buteshire. Spheroidal weathering of a dolerite sill intruded into Triassic sandstone. The stream shows a waterfall. |
| Description: | Stream section about 0.805 km. north of Kildonan Castle, south-east Arran. Buteshire. Spheroidal weathering of a dolerite sill intruded into Triassic sandstone. The stream shows a waterfall. The spheroidal weathering is typical of that formed in well-jointed rocks such as basalts and dolerites. Water penetrates the intersecting joints so attacking blocks from all sides at once. Depth of decay is greater at the edges than along the flat faces so with continued weathering the blocks will become increasingly rounded. |
| Date taken: | Fri Jan 01 00:00:00 GMT 1897 |
| 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: | 203700 |
| Y latitude/northing: | 621700 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Landscape |
| Size: | 212.81 KB; 1000 x 757 pixels; 85 x 64 mm (print at 300 DPI); 265 x 200 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images, Geoscience subjects/ Landforms, weathering/ Rock weathering, Geoscience subjects/ Landforms, weathering/ Weathering along bedding. Joints, cleavage |
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