THE MINING AND QUARRY INDUSTRY lOQ 



In Chautauqua county Cassadaga lake and the bordering marshes 

 contain marl. A Portland cement plant was built some years ago 

 to utilize the deposit, but has since been closed down. The marl 

 has been used to some extent for lime/ At the southern extremity 

 of Chautauqua lake, both marl and tufa are found. 



The following additional occurrences have been noted by Beck- 

 and others: Along Tonawanda creek and near Lockport, Niagara 

 CO. : Clarendon, Orleans co. ; near Lodi, Seneca co. ; Beaver 

 Dams, Schuyler co. ; Cortland, Cortland co. ; Horseheads and Mill- 

 port, Chemung co. ; Canajoharie, Fort Plain and Fonda. Montgomery 

 CO. ; town of Cherry Valley, Otsego co. ; 4 miles south of Kinder- 

 hook, Columbia co. ; town oi New Baltimore, Greene co. ; and towns 

 of Rhinebeck. Northeast, Pine Plains, Stanford and Red Hook, 

 Dutchess CO. 



Chemical analyses. The marls are usually quite pure. Com- 

 pared with most limestones they contain much less magnesia and 

 clayey material. The following analyses may be considered repre- 

 sentative of the marls found in New York State. They are based 

 on the dry material and thus show a higher percentage of carbonates 

 than would be the case with the crude marls. 



I 2 3 4 5 



Silica (SiO 2) 6.22 .67 .26 .42 .50 



Alumina (AI2O3) 1.70 



Ferric oxid (Fcgbg) .86 



Lime (CaO) 47.86 54-53 52.86 52.36 52.70 



Magnesia (MgO) .04 .19 .18 i.oi 1.09 



Carbon dioxid (CO2) 42.11 43.05 41.73 42.26 42.61 



Water etc 02.20 .34 4.64 62.87 ••• 



100.99 99-9^ 99-77 100.00 98.90 



a Alkalis. 6 Includes Ca SO4, 2.01%. | 



(i) Marl from Montezuma. Cayuga co. (2) Caledonia Marl 

 & Lime Co., Caledonia, Livingston co. (3) Marl used by Empire 

 Portland Cement Co., Warners, Onondaga co. (4) Thomas Millen 

 Co., Wayland, Steuben co. (5) Calcareous tufa, Mumford, Mon- 

 roe CO. 



Bibliography 



Hall, James. Geology of New York: Report on Fourth District. 1843. 

 Marshall, W. B. Report on deposits of mari and peat in the town of New 



Baltimore, Greene county. N. Y. State Mus. 45th An. Rep't. 1892. 



p. 46-52. 

 Ries, H. & Eckel, E. C. ' Lime and Cement Industries of New York. N. Y. 



State Mus. Bul.|44. 1901. 

 Vanuxem, Lardner. Geology of New York: Report on Third District. 1839. 



^ Op. cit. p. 496. 



^ Mineralogy of New York. 1842. 



