100 0. S. PROSSER — DEVONIAN AND SILURIAN ROCKS. 



SECTION OF THE WELL AT FULTON, NEW YORK. 



Approximate altitude, 287 feet. 



Depth. Thickness. Kind of rock. Formation. 



Feet. Feet. 



42 358 Brownish-red quartz grains and chips of 



brownish-red sandstone ; at 215 feet a 



few chips. of greenish sandstone. Medina. 



400 185 Greenish-gray sandstone, composed largely 



of quartz grains, with some greenish to 



olive argillaceous shale < >swego sandstone. 



58o 695 Mainly blue argillaceous shale, with some 



arenaceous shale and a little quartzose 

 sandstone; arenaceous chips containing 



fragments of fossils at 875 feet Lorraine shale of the 



Hudson group. 



1,280 120 Black shale with brownish streak Utica shale. 



1,400 335 Mainly bluish-gray limestone, which effer- 

 vesces strongly in cold HC1 ; some dark 

 blue and light gray limestone ; fragments 

 of fossils at 1,638, 1,665 and 1,735 feet. . . Trenton limestone. 

 1.735 * Last sample " 



This well was first described by Mr Charles A. Ashburner in 1888, who 

 reported that the well had been drilled to the depth of 1,727 feet, and 

 gave the following section : 



" Medina sandstone 400 feet, 



Hudson River shale 880 " 



Utica shale and slate 120 " 



Trenton limestone 327 " 



Total 1,727 " 



"At 1,727 feet, 327 below the top of the Trenton limestone, gas was struck in such 

 force as to throw sand from the well to the top of the derrick, a height of 74 feel 

 10 inches. The gas caught on tire and the derrick was burned down." f 



In April, 1890, Mr ( 'hades D. Walcott published the same record, with 

 the additional 323 feet to which the well had been drilled, making its 

 total depth 2,050 feet, X 



Sandy Creek Well Number 4 and Section. — Several wells have been drilled 

 near Sandy Creek and Lacuna, Oswego county. New York, for natural 

 gas, which was obtained in moderate quantities. Mr Gilbert X. Hard- 

 ing, of Lacona, saved and forwarded to me a set of samples from well 

 No. 4 of the Sandy Creek Oil and Gas Company, limited. Lacona is 



* This is the depth from which the hist sample came in the set furnished me for study. Mr 

 Walcott reported that the well was drilled :;i."> feet deeper, reaching a depth of 2,050 feet, and that 

 it passed through 650 feel of Trenton limestone (Bull. Geol. Soc. Am., vol. i. p. 349). 



fTrans. Am. I n-t. Min. Eng., vol. xvi. p. 958. 



| Bull. Geol. Soc. Am., vol. i, p. 349. 



