VICINITY OF THE UPPEK PAKI OF LOCH MAREE. 



95 



consideration of the question, I have no hesitation in asserting that 

 all the so-called syenite (except some intrusive dykes) is simply a 

 rather granitoid variety of the Hebridean gneiss, and that its junc- 

 tion with the calcareous series is a faulted one. The fault descends 

 the right bank of the vaUey, striking about E.S.E., changes its direc- 

 tion before reaching the river to a little E. of S., and while crossing it 

 appears to change again, and emerge, striking about midway between 

 S.W. and S.S.W. (fig. 1). "^^ " " """ tT.i.,,;^.„ ;.. ..^ i.. 



Here also the Hebridean gneiss can be 



Fig. l.—SJcetch map of part of Glen Lagcjan. 



Fault. B Fault. 



40=Btrikuig 40° S. of E. 

 40= striking 40° S. of E. "with a dip of 25°. 



foUowed along the hill-side, and traced to within a short distance of 

 the newer series ; but I could not, though I searched carefully, find an 

 actual iunction. On this side also I observed a case of very distinct 

 foliation in the " syenite," dipping at about 45° to S. 20° W. Below 

 this spot the ordinary Hebridean gneiss can be traced by the river- 

 side at intervals, obviously forming part of the same series, to a sheep- 

 fold at the mouth of the glen. It is overlain by Torridon Sandstone, 

 which occupies, I believe, all the undulating shoulder between the 

 streams from Glen Laggan and Glen Docherty, except that m two 



