P number: | P001965 |
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Old photograph number: | C00705 |
Caption: | Downan shore, 1.6 km. south of Ballantrae, Ayrshire. Ordovician pillow lavas with interstices filled with limestone and chert. Rocks are scoured by recent wave action. |
Description: | Downan shore, 1.6 km. south of Ballantrae, Ayrshire. Ordovician pillow lavas with interstices filled with limestone and chert. Rocks are scoured by recent wave action. Pillow lavas are indicative of submarine extrusion. The limestone and chert probably precipitated from contemporary sea water as the lavas cooled. The lavas form part of the Downan Point Lava Formation, thought to be of Caradoc age. The Downan Point Lava Formation (DPF) crops out south of the Stinchar Valley Fault and forms part of the Southern Uplands terrane. The lavas were originally considered to be Arenig in age and to correlate with the Balcreuchan Group lavas in the Ballantrae area. However, the Downan Point lavas are now thought to be younger and of Caradoc age. |
Date taken: | Fri Jan 01 00:00:00 GMT 1897 |
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: | 206500 |
Y latitude/northing: | 580500 |
Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
Orientation: | Landscape |
Size: | 206.80 KB; 1000 x 718 pixels; 85 x 61 mm (print at 300 DPI); 265 x 190 mm (screen at 96 DPI); |
Average Rating: | Not yet rated |
Categories: | Unsorted Images, Geoscience subjects/ Igneous features/ Pillow lavas |
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