GEOLOGY OF MONADNOCK MOUNTAIN 9 



western limb. South of the summit this syncline may be 

 traced along the crest of the ridge, becoming narrower, as far as 

 the east-west line of the more southerly house on the mountain ; 

 south of this line, along the continuation of the axis of the 

 syncline, there is a marked deviation of the strike to the east. 



Fig. 4. — Showing the jointing in schist. West side of Monadnock, 2800-foot 

 level, looking southeast. The joint plane slants toward the right. The dip is toward 

 the left. 



which becomes less and less as the syncline fades out to the 

 south. 



On the transparent sheet accompanying the geological map 

 the folds in the schist are represented. The lines of strike were 

 first plotted, and then these curves were drawn through them. 

 In this way the anticline in the schist, as it folds around the 

 granite lobe in the west, and the syncline in the mountain itself 



