| P number: | P005127 |
|---|---|
| Old photograph number: | D04029 |
| Caption: | Harter Fell, 350 m. NW of summit. |
| Description: | Harter Fell, 350 m. NW of summit. Nodular ignimbrite: Little Stand Tuff Birker Fell Formation (Borrowdale Volcanic Group). A very distinctive rhyolitic welded ignimbrite containing abundant siliceous nodules (lithophysae) extends from Yoadcastle [SD 1595] to Cold Pike [NY2603], a distance of about 13 km. It forms an important marker horizon that aids stratigraphic correlation within the thick andesite pile. The roughly spherical nodules have an outer zone of welded tuff and a central, irregular, quartz-filled cavity. |
| Date taken: | 01/09/1988 |
| Photographer: | McTaggart, F.I. |
| Copyright statement: | NERC |
| Acknowledgment: | This image was digitized with grant-in-aid from JIDI the JISC Image Digitization Initiative |
| X longitude/easting: | 321500 |
| Y latitude/northing: | 499840 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Portrait |
| Size: | 342.33 KB; 664 x 1000 pixels; 56 x 85 mm (print at 300 DPI); 176 x 265 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Best of BGS Images/ Geological structures |
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