72 



NEW YORK STATE MUSEUM 



Movement 



Seventeen occurrences of glacial striae have been noted in the 

 quadrangle; they are especially numerous beside the highways in 

 the valley of the East branch of the Ausable river. The majority 

 of them have been observed by Doctor Miller, who has indicated 

 them upon the accompanying map. The striae in the valleys were 

 made by the waning stages of the glacial lobes, for their direction 

 has been influenced very largely by the topography of the country. 

 The more general direction of the ice flow would be shown by striae 

 on the mountain summits, but their records have been destroyed by 

 weathering agencies. Nevertheless it can be stated that the ice that 

 covered the quadrangle flowed southward with a slight deviation 

 to the west. 



Table of Glacial Striae 



STRIAE 



TOWNSHIP 



LOCATION 



OBSERVER 



S45°W 



S4S-W 



S77"W 



S 40° w . . . . 



Franklin 



Franklin 



Black Brook. . . . 



Wilmington 



Wilmington 



Jay 



Jay 



Jay 





W. J. Miller 



f mile northeast of Franklin Falls 



I mile northwest of East Kilns 



W. J. Miller 

 H. L. Ailing 

 W. J. Miner 



8 62° W 



S 12° W 



Due S 



3 miles southeast of Wilmington 



Southeast of Upper Jay 



J. F. Kemp 

 T. F. Kemp 

 W. J. Miller 



S 10° E 



2 miles southwest of Upper Jay 



W. J. Mi'ler 



S 15° E 



Keene 



W. J. Miller 



Due S' 





W. J. Miller 



Due S 



Keene 



Keene 





W. J. Miller 



S 10° E 





H. L. Ailing 



Due S 





H. L. Ailing 



Due S 



Keene 



Keene 



Keene 





W. J. Miller 



S 25° E. . . 





W. T. Miller 



S 10° E 





W. J. Miller 









Erosional Work 



The residual soil resulting from weathering during interglacial 

 periods was completely removed by the ice, the mountains smoothed 

 and their contours subdued. The extent of ice action is recorded 

 in the comparatively fresh condition of the rocks on exposed 

 ledges, as is shown on the bare slopes of Pitchoff mountain, on the 

 southern edge of the map. 



The many amphitheaters and little rocky pockets on the moun- 

 tainsides are due, in all probability, to the erosive action of the ice. 

 These cirques have been attributed to the combined work of the 

 continental ice bodies and to local glaciers.^ They are visible on 



^ Ogilvie, I. H. Glacial Phenomena in the Adirondacks, Jour. Geol., 

 10:406. 1902. 



Johnson, D. W. Date of Local Glaciation in ihe White, Adirondack, 

 and Catskill Mountains, Geol. Soc. Amer. Bui. 28:543-52. 1917. 



