GEOLOGY AND PALEONTOLOGY OF THE SCHOHARIE VALLEY 257 



Feet Inches 



e Rondout waterlime^ thin bedded drab colored 

 impure limestones, forming upper part of the 

 waterlime 10 



At the old strontium mine, ^ mile farther 

 north, the following succession occurs [pi. 

 24]: 



eh Massive beds 



eg Shaly gray beds with much clay and much de- 

 composed. Split up thin. About 8 



ef Gray thin bedded lime mudrocks 8 



ee Dark massive lime mudrocks forming a single 



bed 2 2 



ed Thin bedded impure lime mudrocks weathering 

 into a yellowish argillaceous chalky rock. 

 Leperditia cf. jonesi was found here. 3 



ec Dark lime mudrocks in heavy beds and without 

 the thin bedding of the lower beds. Numer- 

 ous large geodes filled with calcite in crystals 

 or massive, and strontianite in the white mas- 

 sive form, occur. Some of the geodes appear 

 to have replaced heads of Stromatopora 5 



el) Gray thin bedded waterlimes often quite argil- 

 laceous and showing fine stratification. Typi- 

 cal waterlime 4 



ea Dark gray massive lime mudrocks with con- 



choidal fracture. Lowest beds exposed 2 



e, eg and eh probably are the same as the 10 

 foot bed exposed in the section below Acker's, 

 e to a Mostly covered slope from the creek level to the 

 base of the prominent cliff. The Cobleskill 

 limiestone (d) is exposed at several places on 

 the lower slope, but the other beds are covered 

 by talus. About 100 feet below the base of the 

 , cliff occur ledges of sandstone, probably in the 

 Lorraine 260 



Total of section approximately 706 



