164 



Subsurface Geologic Methods 



Bell series in the Avery district of Shoshone County, Idaho. The elements 

 of these folds can be readily related to the three above-mentioned axes. 

 The folds shown are comparatively small and simple; the features 

 such as lineation, jointing, and schistosity are pronounced. Careful de- 

 tailed mapping may demonstrate these on large, complicated structures. 

 The use of such components correlated with microfabrics permits the 

 reconstruction of complexly deformed units. 



Laboratory Techniques and Presentation of Data 



Once the macrocomponents are determined, the microscope is re- 

 sorted to for further aid. The following publications present the labora- 



FiGURE 62. Tight fold in white schistose quartzite. Schistosity is produced by 

 parallel flakes of muscovite. The lineation is parallel to b and is shown in 

 figure 63. 



