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Uploaded on:
14/02/2009 02:58:31
Digital Asset
File Size:
217.93 KB
1001 x 728 pixels
3873 views 4 downloads
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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