160 



GEOLOGY OF TONOPAH MINING DISTRICT, NEVADA. 



the spacing of the faults within each system being equal, but that of one system 

 being different from the other. Fig. 52 represents a case similar in all respects, save 



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Line of equal 

 displacement 



FIG. 53. Diagram showing the line of equal displacement when the fault systems are oblique to each other instead of 

 being at right angles, the conditions otherwise being like those in fig. 50. 



that the spacing of the faults of both systems is irregular. Fig. 53 shows a case 

 similar to rig. 50. save that the fault systems are oblique instead of perpendicular. 



If. now. the amount of displacement in the two fault systems is different, even 

 though it be constant within each system, blocks of equal displacement will no 



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Kui. .14. Diagram showing the effect of cross-faults when the faults of one system have twice the displacement of those 

 nl the other system. Here the north-south faults have double the displacements of the east-west ones. The shaded 

 blocks are blocks of equal displacement. 



longer be connected, and therefore there will be no continuous line of equal 

 displacement. In rig. 54, for example, where the displacement of the faults is twice 



