| P number: | P007711 |
|---|---|
| Old photograph number: | A12614 |
| Caption: | Coastal cliff, 1200 m. S. of Penarth Pier. |
| Description: | Coastal cliff, 1200 m. S. of Penarth Pier. Penarth Group in cliff at Seven Sisters Bay, Penarth. Strata exposed in cliff: Lower Lias. 1) 'Ostrea beds', flat-bedded limestones with thin shales. Paper shale horizon at base. Penarth Group (Triassic) Lilstock Formation: 2) 'Watchet Beds', grey calcareous siltstone and mudstone. 3) 'Langport Beds', three thin beds of pale grey very fine-grained limestone. 4) 'Cotham Beds', orange weathering calcareous siltstone and sandstone - filling cracks in pale grey mudstone below. Westbury Formation: 5) Black shales with Rhaetavicula contorta thin beds of nodular calcareous mudstone and pyritiferous sandstone can be seen in the photograph. Mercia Mudstone Group: Tea Green Marl: 6) Unevenly bedded grey limestone. Hollows in upper surface infilled with quartz pebbles and fish fragments (Rhaetic Bone Bed). Height of cliff 15 m. |
| Date taken: | Sat Jan 01 00:00:00 GMT 1977 |
| Photographer: | Jeffery, C.J. |
| Copyright statement: | NERC |
| Acknowledgment: | This image was digitized with grant-in-aid from JIDI the JISC Image Digitization Initiative |
| X longitude/easting: | 318700 |
| Y latitude/northing: | 170200 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Portrait |
| Size: | 424.99 KB; 793 x 1000 pixels; 67 x 85 mm (print at 300 DPI); 210 x 265 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Best of BGS Images/ Geological structures, Geoscience subjects/ Sedimentary features/ Bedding-planes |
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