| P number: | P209991 |
|---|---|
| Old photograph number: | A10086 |
| Caption: | Inverted bottom structures in Exeter-type Culm Measures, Lower Eggbeer, Devon. |
| Description: | Looking south-east at a disused quarry 600 yards south-east of Lower Eggbeer. View of the bedding plane forming south wall of quarry with inverted bottom structures. The bedding plane dips towards the camera at c. 45 degrees. The bottom structures on bedding plane are upside down indicating that the succession is here overturned. Bottom structures include load casts (centre of picture) and flute clasts (a little below and to the right of the hammer). In their present spatial attitude, the flute casts indicate that the depositional currents flowed from the bottom right to the top left of the picture. Flute casts are raised bulges on the underside of a siltstone or sandstone characterized by a steep, blunt and rounded bulbous upcurrent end from which the structure flattens out in the down-current end. It is formed by the filling of a flute, an erosional sedimentary structure caused by the scouring action of turbulent sediment-laden water. Its long axis is generally parallel to the current. |
| Date taken: | Tue Jan 01 00:00:00 GMT 1963 |
| Photographer: | Pulsford, J.M. |
| Copyright statement: | Crown |
| X longitude/easting: | 277500 |
| Y latitude/northing: | 92500 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Landscape |
| Size: | 381.38 KB; 1000 x 779 pixels; 85 x 66 mm (print at 300 DPI); 265 x 206 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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