BULL. GEOL. SOC 



AM. 



VOL, 14, 190i 



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FiGrEE 1.— Details of the Respixi Cbeek IxTErsiox 



Vertical columns combined with the wavy thin layers and also pitted and jointed 

 character of rock are well shown 



Figure 2. — Details of banded Structure of middle Portion of Dike 52 

 DETAILS OF RESPINI CREEK DIKE AND DIKE 52 



