P000584

Uploaded on:
13/02/2009 07:05:07
Type:
Digital Asset
File Size:
190.27 KB
Dimensions:
1000 x 675 pixels
3766 views 4 downloads
P number: P000584
Old photograph number: D01259
Caption: The Eildon Hills, near Melrose, from the north-west. Roxburghshire. The hills are the denuded remains of a composite laccolith of trachyte rocks intruded into the Upper Old Red Sandstone in Carboniferous times.
Description: The Eildon Hills, near Melrose, from the north-west. Roxburghshire. The hills are the denuded remains of a composite laccolith of trachyte rocks intruded into the Upper Old Red Sandstone in Carboniferous times. Much of Eildon Wester and Eildon Mid is formed by riebeckite-felsite disposed in two layers. The summit of Mid Hill is occupied by orthophyric riebeckite-trachyte overlying a sheet of augite-olivine-trachyte. Eildon Hill North consists of porphyritic and non-porphyritic sanidine-trachyte. A laccolith is an intrusive dome-like mass of igneous rock which arches the overlying sediments and has a flat floor. If there have been several phases of emplacement of different materials then it is said to be composite.
Date taken: 01/01/1970
Photographer: Christie, A.
Copyright statement: NERC
Acknowledgment: This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network
X longitude/easting: 355500
Y latitude/northing: 633500
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Landscape
Size: 190.27 KB; 1000 x 675 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, mountains and hills  

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