1892.] 



PROSSER — THE GENESEE SECTION. 



Tiiirty rods north of the Standard well, on the eastern side 

 of the railroad are the two wells of the Miller Salt Co. The following 

 section of one of these wells is compiled from data given by Professor 

 Bishop. (') 



Section of the Miller Salt Company's Well. 



Approximate altitude 1085' A. T. (-) 



DEPTH. ^NESS"' KIND OF ROCK. FORMATION 



f Lower 

 j Portage. 

 935' Shale. { Genesee. 



I Hamilton. 

 [^ Marcellus. 

 Upper Helderberg. 

 Lower Helderberg. 

 O 



D 

 O 

 3 

 CL 

 CJ 



(n 



X 



BL 

 o 



At Saltvale, about three miles north of Warsaw or three miles 

 south of Wyoming, are the two wells of the Crystal Salt Co. Professor 

 Bishop gives the following section of well No. t : (^) 



well is " 1,650 feet in depth, with a salt vein of only twenty-seven feet thickness." On chart No. 

 Ill the first salt is given as 1488'. In data obtained by Prof. Williams about this well the Cornif- 

 erous limestone is given as goo', first salt as 1505' and bottom of salt as 1574'. 



(3.) It will be noticed that this well shows the presence of the red shales of the Onondaga Salt 

 group, below the salt horizon. Prof. Hall did not find surface exposures of this shale in western New 

 York and wrote " the red shale forming the lower division of the group [Onondaga Salt group] 

 * * * I have not been able to find west of the Genesee river." 



" West of the Genesee * ♦ * * the red shale has either thinned out or lost its color, grad- 

 ually becoming a bluish green; while otherwise the lithological character remains the same" (Geol. 

 of N. v., Pt. IV, p. 119). 



Farther west in Ontario the red shales are present in the lower part of the Onondaga Salt group 

 as was described by Dr. T. Sterry Hunt, who stated that the lower strata "consisted chiefly of red- 

 dish and bluish shales, with inter-stratified beds of gypsum" (Am. Jour. Science, 2d ser., Vol. 

 xlvi, (1868) p. 359). The probable occurrence of the red shales near Chippawa village, Ontario, 

 and on the Welland canal, near Port Robinson, was inferred by Sir Wm. Logan, from the fact that "the 

 clay for a considerable extent in that neighborhood, has a red color, such as might be expected from 

 the disintegration of the red shales, which occur at the base of the formation ia New York" (Geol. 

 Surv. Canada. Rept. of Prog, from its commencement to 1863, p. 347). 



(i.) 5th Ann. Rept. State Geologist [of New York] for 1885, p. 21. 



(2.) Ann. Rept. Supt. Onondaga Salt Springs for 1888, Chart No. III. 



(3.) Dr. Engelhardt says, "The Miller salt works obtain their brine from two wells of about 

 1,600 feet depth with nearly 100 feet of a rock salt vein in one, and less than a fifty-foot vein in the 

 other, though the wells are only a short distance apart" {ibid., p. iS); but on Chart No. II. Prof. 

 Bishop's section is given without modification. 



(4.) 5th Ann. Rept. State Geologist [of New York] for 1885, p. 21. 



