| P number: | P002203 |
|---|---|
| Old photograph number: | C01975 |
| Caption: | North of Sron Rubha na Gaoithe, south-west of Helmsdale, 0.4 km. south-west of Portgower, Sutherland. |
| Description: | The Kimmeridgian sequence in East Sutherland consists of thinly-bedded bituminous shales with fossils indicating deposition in fairly deep water, interbedded with boulder beds which range in thickness from 1 m. to 10 m. The boulder beds consist of angular blocks and boulders varying in diameter from a few centimetres to the 'fallen stack' which measures 34 m. x 27 m. x 9 m. The boulders are set in a sandy matrix with fossils indicative of shallow water or even a deltaic environment. The Helmsdale Boulder Bed (Jurassic, Kimmeridgian age) with the famous misnamed gigantic 'fallen stack of Portgower' of Middle Old Red Sandstone age. |
| Date taken: | 01/01/1914 |
| 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: | 300500 |
| Y latitude/northing: | 912500 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Landscape |
| Size: | 217.93 KB; 1001 x 728 pixels; 85 x 62 mm (print at 300 DPI); 265 x 193 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images, Geoscience subjects/ Stratigraphical, Geoscience subjects/ Landforms, marine/ Coastal deposition, sand-bars, shingle-ridges, storm-beaches |
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