26 BULLETIN OF THE NEW YORK STATE MUSEUM 



EXTRACT FROM THE REPORT OF D. D. LUTHER ON THE LIVONIA 



SHAFT 



The mouth of the shaft is 260 feet above Conesus lake, 

 170 feet above Hemlock lake and 1082 feet above sea level. 

 The first 10 to 12 feet of the drift penetrated was a fine 

 loamy gravel with large boulders of gneiss and smaller 

 blocks of limestone, principally from the corniferous or 

 water-lime groups. Below that deposit veins of clay and 

 quicksand saturated with water were encountered. At 64 

 feet the bed rock was reached. 



„ . _.. , SYNOPSIS OF RECORD 



Depth Thickness 



380 feet Beginning of recorded section. 



6 feet bluish gray shale. 



^ 29 feet compact dark blue shale. 



^ ^ 1 foot hard gray limestone. 



4 1 1 feet hard medium dark blue shale, somewhat 



427 calcareous. 



2 feet blue gray limestone. 



1 foot soft blue gray shale. 



^ 1 foot fine pinkish gray limestone. 



^ 7 feet blue shale with concretionary layers. 



^ 2 feet hard limestone containing considerable 



440 pyrites. 



7 feet soft blue compact, pyritiferous shale. 

 4 ^y 20 feet soft blue gray shale. 



9 feet dark blue, slightly pyritiferous shale. 



2 feet concretionary layers with silicified fos- 

 478 sils. 



17 feet blue shale, hard and calcareous. 



27 feet dark brownish bituminous shale. 



28 feet dark bluish gray soft shale. 



4 feet soft bluish pyritiferous shale. 



8 feet harder arenaceous and pyritiferous shale. 



5 feet sandy shale with thin layers of impure 

 560 limestone. 



467 

 476 



515 

 543 

 547 



555 



