Plate i6 





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Upper figure. Complex fragmentation of a thni sheet of ampliibolite ni 

 normal pink granite gneiss. The fracturing has occurred along closely spaced 

 lines that are roughly parallel or normal to each other ; the intersecting sets 

 are probably genetically related to each other through torsional strain in the 

 thin brittle mass during movement in the viscous magma. Scale, i inch equals 

 about 2 feet; looks southeastward at dip surface. 



Tupper's quarry, three-tenths of a mile northeast of Canton village line. 



Lower figure. Gabbroic inclusion in granite gneiss ; black rock v^eathers 

 in relief, and is a fairly prominent feature in the landscape. Scale, i inch 

 to about 10 feet at distance of hammer. Looks northwest. 



One and six-tenths miles northeast of Pyrites. 



