Luther — Geology of the Salt District. 



189 



Corniferous (Onondaga) limestone - 70 feet. 



[Oriskany ... - "] 



Lower Helderberg - - 209 " 



Hydraulic limestone ..... 325 " 



Light grey shale - - - - 43 " 



Dark red shale - - - - 5 " 



Green and blue marl - - - - 87 " 



Green and blue marl, with 30 feet limestone - - 149 " 



Rock salt at 1259 feet .... 10-12 " 



Red and green variegated marl ■ - - 129 " 



Red marl ■ .... 60 " 



Green and blue marl - - - - 105 *' 



Red shale - ■ - - - 225 " 



Blue shale and limestone, Niagara - - 59 " 



Blue shale - ... 22 " 



Blue shales and limestone, Clinton . • 15 " 



1886 " 



From this record it appears that the bed of rock salt found here is located 

 888 feet below the top of the Coniferous limestone, and the total thickness of 

 the strata considered as belonging to the Salina group is 1140 feet, a remark- 

 able increase over that at the nearest exposures or in other wells in which it 

 was penetrated. 



The Morrisville well marks the most easterly point at which rock salt 

 has been found in the state, and the most northerly, east of the Genesee 

 river, with a possible single exception. 



In 1891 and 1892 several wells were drilled in search of gas in the 

 vicinity of Seneca Falls, Seneca county, in one of which it is said that rock salt 

 was found. Mr. Frank Wescott, of the firm of Wescott Bros. Company, who 

 Avere connected with the sinking of these wells, states in a letter dated Jan. 2nd 

 1893, written in reply to inquiry, that ''in our well No. 4, three miles north 

 of this place (Seneca Falls) at the depth of 565 feet Ave passed through 

 eighteen feet of rock salt." 



xne mouth of the well is about 400 feet A. T., and its geologic horizon 

 is in the gypseous marls of the Salina group but little above the top of the 

 red shales, not more than 100 to 150 feet above the horizon of the great 

 rock salt bed as found at other localities. 



