LIVONIA SALT SHAFT 3 1 



Depth Thickness 



i foot 6 inches bluish marl, becoming light 

 blue on exposure ; little salt ; gypsum 

 1378' 6" abundant. 



1 1 feet mixed salt, coarsely crystalline, and 

 marl in flakes and small fragments pres- 

 1390 ent throughout the bed. 



13 feet salt. 

 4 3 3 feet 6 inches dark gray hard limestone con- 



taining much salt in veins, seams and 

 1 406' 6" crystals. 



2 feet 6 inches gray limestone soft ; pinkish 

 1409 salt in veins and seams. 



1 foot 6 inches very soft bluish marl ; pinkish 

 1 410' 6" and white salt in seams and veins. 



15 feet six inches white and pink salt in large 

 crystals with fragments and flakes of marl 

 1426 in varying proportions. 



2 feet dark gray hard limestone. 



^ 4 feet green marl with red and pink salt in 



1432 thin layers. 



In this section 408 feet of Salina strata are penetrated 

 below the bottom of the water-lime formation, the bottom 

 of the well being 566 feet below the bottom of the Cornif- 

 erous. Probably there is as much as 500 feet of Salina 

 strata with salt beds below the bottom of the shaft. It is, 

 therefore, not certain that more than the upper half of the 

 group is exposed in this section. It is noteworthy that 

 much gypsum overlies the salt. 



ALTITUDE OF THE SALT BEDS 



In the Oatka-Genesee salt district the number and wide 

 distribution of the wells and shafts supply data with regard 

 to the altitude and attitude of the salt deposits which per- 

 mit of certain generalizations. The measurements of the 

 various wells make it possible to construct a map of the 



