1862.] 



HAEKNESS ^METAMORPHIC ROCKS. 



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some distance, and again the higher 

 drab shales occur at Melross, where 

 they have been worked for roofing- 

 purposes. Between this point and 

 Macduff, many contortions and 

 rolls are seen in the rocks exposed 

 along the coast; and the strata 

 gradually assume a more altered 

 character as they approach the 

 latter place. 



The section, as shown in the 

 cliffs between Gamrie and Macduff, 

 exhibits the following arrange- 

 ment. First, and highest, a mass 

 of drab shale; second, a series 

 made up of greywacke-sandstones, 

 with cherty beds and pebbly 

 layers; and third, and lowest, a 

 small exposure of quartz-rocks. 

 West from Macduff fine-grained 

 gneiss and crystalline greywacke- 

 sandstone overlie quartz-rocks, 

 which form an axis at the entrance 

 into Banff Harbour. 



At Banff, opposite the Railway- 

 station, are seen well-developed 

 (and here dipping N'.W.) quartz- 

 rocks. To these, on the west, suc- 

 ceed grey gneiss, with interca- 

 lated quartz-rocks — the latter, at 

 the boundaries of each stratum, 

 often showing their original con- 

 dition in the form of fine pebbly 

 layers of rounded quartz. Strata 

 of this natiu-e prevail for a short 

 distance to the west of Banff; 

 but they soon become masked by 

 the sandy shore, which prevails 

 until the Black Pots Tile-works 

 are reached. Here a synclinal 

 occurs ; and at Whitehills the pre- 

 vailing dip is S.E., although the 

 strata are much contorted. 



The S.E. dips obtain to near a 

 mass of fine-grained syenite, where 

 N.W. dips again occur. West of 

 the syenite, rolls are again abun- ^ 



dant; but, after a short distance, S.E. dips again set in, and con- 

 tinue to the Burn of Boyne, wh ere limestone comes out from beneath 

 the gneiss. This limestone, w hich has been extensively wrought at 



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