Editing Moine geology of the Great Glen - an excursion

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The evidence at these localities indicates that the Great Glen Fault was initiated at a late stage in the Caledonian orogeny. The style of deformation is characteristic of deformation within the brittle-ductile transition zone, broadly equivalent to depths of 10-15km (Snoke ''et al''., 1998; Holdsworth ''et al''., 2001b). This is consistent with the growth of chlorite and muscovite in shear-zone fabrics, implying shearing at depths equivalent to greenschist facies metamorphic conditions (Stewart ''et al''., 2000). In addition, it would appear that most of this shearing was completed within the mid crust, with no evidence for progressive overprinting by brittle deformation during exhumation to the surface. Retrace the route back to vehicles.
 
The evidence at these localities indicates that the Great Glen Fault was initiated at a late stage in the Caledonian orogeny. The style of deformation is characteristic of deformation within the brittle-ductile transition zone, broadly equivalent to depths of 10-15km (Snoke ''et al''., 1998; Holdsworth ''et al''., 2001b). This is consistent with the growth of chlorite and muscovite in shear-zone fabrics, implying shearing at depths equivalent to greenschist facies metamorphic conditions (Stewart ''et al''., 2000). In addition, it would appear that most of this shearing was completed within the mid crust, with no evidence for progressive overprinting by brittle deformation during exhumation to the surface. Retrace the route back to vehicles.
  
=== Locality 14.3 View over Loch Lochy towards the Clunes Tonalite [NN 235 892] ===
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== Locality 14.3 View over Loch Lochy towards the Clunes Tonalite [NN 235 892] ==
  
 
View over Loch Lochy towards the Clunes Tonalite [[Media:EGS_MOI_Fig_14_01.jpg|(Fig. 14.1)]], [[Media:EGS_MOI_Fig_14_04.jpg|(Fig. 14.4)]].  
 
View over Loch Lochy towards the Clunes Tonalite [[Media:EGS_MOI_Fig_14_01.jpg|(Fig. 14.1)]], [[Media:EGS_MOI_Fig_14_04.jpg|(Fig. 14.4)]].  

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