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Uploaded on:
14/02/2009 02:49:17
Type:
Digital Asset
File Size:
281.53 KB
Dimensions:
1001 x 727 pixels
3662 views 4 downloads
P number: P002135
Old photograph number: C01740
Caption: Gorge of Eas an Tuill, Steall, Glen Nevis, inverness-shire. Glacially-moulded gorge in hornfelsed mica-schists (Leven Schists, part of the Lochaber Subgroup of the Dalradian Supergroup (Precambrian)).
Description: Gorge of Eas an Tuill, Steall, Glen Nevis, inverness-shire. Glacially-moulded gorge in hornfelsed mica-schists (Leven Schists, part of the Lochaber Subgroup of the Dalradian Supergroup (Precambrian)). Above Polldubh, the valley is open and U-shaped, a typical glacially eroded and widened valley. Beyond a right-angled bend ascending the glen the river flows through a deep and narrow gorge cut in the base of a very high-level gap which shows intense glacial erosion. Because of ice-moulding to the very bottom of the valley it is not postglacial in origin, and at the same time it is considered too narrow to be the direct work of glacial erosion. The inference being that this is a pre-glacial section of the Glen Nevis valley.
Date taken: 01/01/1910
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: 217500
Y latitude/northing: 768500
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Landscape
Size: 281.53 KB; 1001 x 727 pixels; 85 x 62 mm (print at 300 DPI); 265 x 192 mm (screen at 96 DPI);
Average Rating: Not yet rated
Categories: Unsorted Images, Geoscience subjects/ Landforms, glaciation/ Glaciated valleys, Geoscience subjects/ Landforms, river/ Gorges and ravines, Geoscience subjects/ Landforms, glaciation/ Hanging valleys and gorges  

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