| P number: | P212535 |
|---|---|
| Old photograph number: | A13482 |
| Caption: | Craig-y-cwm cirque, Llanover, Gwent. |
| Description: | Craig-y-cwm cirque and floor at Craig-y-cwm and Ochram Brook, west of Llanover. Foreshortened view down the steep (33 degrees gradient) rear wall of Craig-y-cwm formed by the Brownstones. Similar cirque-like landforms along the East Crop scarp face north-east but many lack the rock floor and lip of true cirques. They lie above and outside the general level of glacial deposition and their deposits appear to overlie Usk glacial deposits where in contact. Possibly they represent nivation cirques, whereby a small glacial cirque was subsequently enlarged and modified by nivation, aided by landslipping. The central fields are composed of peaty clays probably on the site of an infilled llyn. The irregular moundy country (? disrupted gelifluction terraces) is composed of local angular debris and slopes down to Ocham Brook. A steep-sided ridge, (? protalus rampart) separates these two areas. |
| Date taken: | Sun Jan 01 00:00:00 GMT 1978 |
| Photographer: | Pulsford, J.M. |
| Copyright statement: | NERC |
| X longitude/easting: | 328100 |
| Y latitude/northing: | 208800 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Landscape |
| Size: | 301.62 KB; 1000 x 677 pixels; 85 x 57 mm (print at 300 DPI); 265 x 179 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images, Geoscience subjects/ Landforms, weathering/ Coombe rock |
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