QUARRY MATERIALS OF NEW YORK 199 



bedding. They are somewhat wavy when seen in cross-section, as 

 they have been subjected to powerful compression during the up- 

 lifting of the beds which stand nearly on end. The strike is about 

 north and south and the dip 8o° east. The bedding joints have 

 been healed by flowage and crystallization of the carbonates, though 

 still obscured in places as blind checks and seams. The marble has 

 a fine grain with average diameters of less than .5 mm. The pro- 

 duct has been employed mainly for veneer and wainscoting, for 

 which purpose it is shown across the bedding so as to bring out 

 the banding. The quarries were closed in 1912. 



TURNER'S CORNERS, PUTNAM COUNTY 



A gray marble was quarried at one time near Turner's Corners. 

 The stone is rather coarse and in the outcrop shows a crumbly loose 

 grain. It was employed in the dam at Sodus on the Croton water 

 supply. 



PEEKSKILL, WESTCHESTER COUNTY 



A magnesian limestone of considerable purity and white to gray 

 in color is found along Sprout Brook valley, north of Peekskill. It 

 has been worked to some extent for lime, notably on the Frost 

 place where there is a quarry and kiln, now idle. A sample of the 

 stone selected to afford an average of the whole quarry face showed 

 the following results, as reported to the writer by T. M. Williams 

 (H. D. Gehret, analyst) : 



Si0 2 70 



A1 2 3 



Fe 2 3 ; 



MgCOs 6.00 



CaCOa 91 . 40 



P 2 5 03 



H 2 25 



99-73 



The crystalline limestone continues northward into Putnam 

 county and outcrops in force on the Couch, Slater and Barrett 

 farms, in some places possessing a uniform white color and even 

 texture like the best marbles of this region. The stone differs from 

 the latter, however, in it relatively small magnesia content. 

 Another analysis of the stone from, the Couch farm, by H. D. 

 Gehret, showed : 



