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MOKRISVILLE WELL AND SECTION. 97 



Depth. Thickness. Kind of rock. Formation. 



Feet. Feet. 



1,179 36 Bluish-gray marlite, which is quite cal- 

 careous Onondaga Salt group. 



1,215 -44 Dark gray to drab impure limestone or 



marlite ; effervesces strongly in cold 



HC1 



1,259 41 Dark gray to drab marlites mixed with 

 crystals of salt. The driller reported 

 10 to 12 feet of rock-salt at 1,259 feet ; 

 also chocolate and green shales 



Chocolate' and green variegated marls, 

 with a little bluish shale . . . " 



Mostly chocolate shale, with an occa- 

 sional green and blue chip " 



Mostly green and bluish marls, with an 

 occasional red chip 



Clear red shale, with an occasional green 

 chip 



Blue argillaceous shale, slightly calcare- 

 ous ; small amount of salt from evap- 

 oration about the cork of the vial. " " 

 1,815 5 Drab gray limestone or marlite ; effer- 

 % vesces readily in cold 1IC1, but leaves 

 a large residue ; salt as in sample 

 above 



Dark blue argillaceous shale and mar- 

 lite 



Dark blue limestone, which has a strong 

 effervescence in cold HC1 " " 



The last sample, from 1,889 feet, is partly 

 limestone, but contains more blue 

 argillaceous shale. Bottom of the 

 well in the Onondaga Salt group*. . . " " 



Chittenango Well and Section. — A well which has furnished an important 

 section for the purposes of this paper was drilled during' the first half of 

 1890, at Chittenango, Madison county. Mr F. W. Lamphere, of that vil- 

 lage, carefully preserved a complete set of samples from this well, with 

 an accurate record of their depths, which eventually reached me for ex- 

 amination. Chittenango is seventeen miles northwest of Morris ville, 



*In the preliminary record of this well it was reported that possibly the Niagara was reached at 

 1,805 feet and the Clinton at 1,87-1 feet (Prof. Am. Assoc. Adv. Sci , vol. xxxvi, pp. 20S-209). A com- 

 parison of the samples from this well with those of the Chittenango and other wells convinces me 

 that the Morrisville well did not reach the Clinton stage, but probably ceased near tin" bottom of 

 the Onondaga Salt group. The driller at l.sso feet reported the Clinton iron ore ami stated that 

 "slight impressions of lenticular grains, about the size of a pin-head, oval and apparently of a con- 

 cretionary nature, were seen." It is probable that some, other substance must have been considered 

 iron ore, as the samples from 1,879 feet and 1,884 feet do not indicate its presence. 



