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Historic Sites > Shap Granite (5)
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Turnstone Geological Services Limited, Campbellford and Toronto, Ontario, Canada
This splendid granite is one of the best-known in England. A beautiful stone, long an attraction for visiting geologists (e.g., Hutchinson, 1926), figuring also in Harker's seminal review of contact metamorphism, which describes host rocks such as andesite and amygdaloidal lavas (Harker, 1932). The Shap intrusion, roughly 8 km2 in surface exposure but probably larger at depth, is a product of Caledonian magmatism, of lower Devonian date (393 Ma, Piper et al., 1978; Cumberland Geological Society, 1982, pp.15-20). The body lies in the Cross Fell inlier, also noted for a range of minor intrusions, such as lamprophyres (kersantites and minettes) thought contemporaneous with the Carrock Fell diabase dyke swarm.
http://www.turnstone.ca/shap.htm
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IngentaConnect
Alkali feldspar phenocrysts in the Lower Devonian Shap granite
http://www.ingentaconnect.com/content/geol/jgs/1997/00000154/00000002/art00003
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Description and videos about Shap Granite used in a BBC building
Cross the road from the BBC Learning Centre and head right into town. The first point of interest on this part of the walk is Argos on the corner of Eastgate Street and Brunswick Road. If you take a look at the stone facings either side of the entrance, you'll see what is called Shap Granite.
http://www.bbc.co.uk/gloucestershire/walks/02.shtml
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School of GeoSciences
Structural dislocations have important roles in low temperature reactions. In K-feldspars in plutonic rocksthey form during cooling as planar microperthites exsolve. We are studying their development and properties in alkali feldspar phenocrysts from the Shap granite
http://www.geos.ed.ac.uk/homes/iparsons/currentResearch.html
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BBC Rock Walk St Pauls London
One of the most splendid features of the whole cathedral design is the semicircle of highly polished Shap Granite bollards which help to keep the area clear of parked cars and coaches. The stone is from the quarries on Wasdale Crag close to the A6 road as it crosses Shap Fell in the south east Lake District. As distinct from the nearby grey Cornish Granite, the texture of Shap Granite combines prominent large pink orthoclase feldspar crystals, set in finer-grained reddish-brown groundmass, the whole representing an example of the rock type known as porphyry. Such strong figured rocks were sought in antiquity and fashioned into bowls, vases and pedestals by the Egyptians, Greek and Romans.
http://www.bbc.co.uk/education/rocks/downloadwalks/stpaulonline.rtf
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