Editing Isle of Lewis (section)

=== Geology ===
[[File:Lewis abandoned.jpg|thumb|right|Abandoned house and croft in SW Lewis, with exposed gneiss visible.]]
The geology of Lewis is dominated by the [[metamorphic rocks|metamorphic]] [[gneiss]]es of the eponymous [[Lewisian complex]].<ref>{{cite book|last1=Park|first1=R.G.|last2=Stewart|first2=A.D.|last3=Wright|first3=D.T.|editor=Trewin N.H.|title=The Geology of Scotland  |chapter-url=https://books.google.com/books?id=ObdepEp9r7kC&pg=PA45|year=2003|publisher=Geological Society|location=London|isbn=978-1-86239-126-0|pages=45–61|chapter=3. The Hebridean terrane}}</ref> Exceptions are a patch of [[granite]] near [[Carloway]], small bands of intrusive [[basalt]] at Gress and in Eye Peninsula and some [[sandstone]] at Stornoway, Tong, Vatisker and Carloway, which was originally thought to be [[Torridonian]],<ref name="1911 Lewis with Harris"/> but is now considered more likely to be [[Permian|Permo]]-[[Triassic]] in age.<ref>{{cite journal|url=http://jgs.geoscienceworld.org/content/131/2/183|title=Sedimentation and tectonism (?Permo-Triassic) on the margin of the North Minch Basin, Lewis|journal=Journal of the Geological Society|first1=Ronald J.|last1=Steel|first2=Alan C.|last2=Wilson|date=1 April 1975|volume=131|issue=2|pages=183–200|via=jgs.geoscienceworld.org|doi=10.1144/gsjgs.131.2.0183|bibcode=1975JGSoc.131..183S|s2cid=129036870}}</ref>