156 



GEOLOGY OF TONOPAH MINING DISTRICT, NEVADA. 



The situation is shown in horizontal plan in fig. -48, where the strikes of the 

 faults and the vein blocks may be studied and compared, as the dips may be 

 compared in the vertical sections. Here it is seen that the faults on the east drifts 

 have essentially a north-south course, some trending to the west of north, and 

 perhaps most of them to the east of north: and that those in the south drift are 



T: i \ 

 ~~^=^^ 70 ' 



Scale 



10 20 



o feet 



Flu. 48. Horizontal plan of WanderiiiK Hoy, 300-foot level, showing fragmentu of vein mill <-ross limits, witli tin- 

 general trend of equal displacement. 



essentially east and west faults, though usually trending north of west. Therefore 

 the vein may be considered, for the sake of clearness, as cut by two intersecting 

 systems of faults, one striking north and south and the other east and west. The 

 vein is repeatedly upthrown on the east by the north-south system and on th 

 south by the east-west system. 



