]\lAraLAND Gkoi.ogical Survey 471 



3? °-^ 



^ o 'E *" m 



RojixEY Formation 'Iccf-a 



-i^ o c 



•S.S3 

 -=^° 



Sandstone and some interbedrted shale which break 



irregularly 32 



Massive sandstone. 



The lithological features of the lower Jennings are well displayed. The 

 basal beds contain the Naples fauna, while the Ithaca fauna makes its 

 appearance 520 feet above the base of the Jennings, and ranges up to the 

 beds containing Camarotoechia congregata var. parkheadensis. The 

 Liorhynchus glohuliforme zone contains a profusion of fossils, rendering 

 this one of the best localities in the State for collecting Ithaca fossils. 



VIII. Section on Tslational Road West of Tonoloway Ridge ^ 

 This section is situated five and one-half miles northeast of the pre- 

 ceding and its lower part embraces the same strata. It is exposed along 

 the National Eoad, beginning at the Eomney-Jennings contact about one 

 mile west of the Tonoloway Eidge, and extending westward 4003 feet. 

 The upper strata are not well exposed, the section being important chiefly 

 because it affords a good exposure of the lower Jennings. 



Jennings Formation "^ ^ " a Z^'S 



Chemung Sandstone Member c>=! to 



N aj" *^ 





Road N. 35° W. gcgg-S s 'S" ^ 



Largely concealed. Fossils at top 4002 143 3692 



Road leading south. Approximate position of upper con- 

 glomerate of Chemung 3882 3549 



Red shale 3822 67.5 3549 



Red sandstone 3752 7 3481 



Red shale. Beds of red sandstone. Some green shale. . . 3745 135 3474 



Red shale breaking irregularly 3605 14.5 3339 



Red and green sandstone 3590 29 3325 



Red shale breaking irregularly 3560 38.5 3296 



Concealed 3520 38.5 3257 



^Measured by pacing. Thickness calculated using average strike N. 24° E., 

 average dip 79 '^ W. 



