LIVONIA SALT SHAFT 29 



Depth Thickness 



i foot limestone. 



8 feet limestone, gypsum in crystals. 



4" 6 feet red and yellow limestone, with layers of 



1255 bluish gypsum from one to six inches thick. 



3 feet yellowish gray limestone. 

 ^ 8 feet bluish gray marl ; gypsum in layers some 



1266 of them from 6 to 12 inches thick. 



12 feet yellowish and reddish limestone; gyp- 

 sum in seams and veins, hopper shaped 

 1278 crystals, at 1274 feet. 



7 feet marl, much gypsum in nodules and 

 1285 masses. 



2 feet light brown marl ; gypsum abundant in 

 1287 nodules. 



9 feet soft light bluish marl, much gypsum in 

 1296 masses and nodules. 



3 feet hard fine brownish gray limestone ; (gas 



1 299 in small quantity). 



1 foot light gray soft limestone ; gypsum in 



1 300 seams. 



1 1 feet dark gray hard limestone. 

 ^ 3 feet hard fine slightly reddish limestone, gyp- 



13 14 sum in thin seams. 



2 feet yellow gray bituminous limestone. 

 ^ 1 foot bluish gray marl. 



3 ' 6 feet light gray, reddish gray limestone, hop 



per shaped crystals; gypsum in thin seams 

 1323 and veins. 



2 feet yellow and light gray limestone ; gyp- 

 1325 sum in seams and veins. 



3 feet of limestone, bluish gray. Gypsum in 

 1328 thin veins. 



3 feet yellow bituminous limestone ; thin veins 

 1331 of light gypsum. 



6 feet very hard gray limestone. 



