IKON ORES OF THE CLINTON FORMATION 



3t 



SECTION AT WALLINGTON 



Strata 



From I To 



Feet Inches Feet Inches 



Character 



Soil . . 

 Shale , 



Limestone 1 70 



Shale, 



Shale 



Shale 



Limestone 



Shale 



Shale, 



Shale, 



Limestone, 



Ore 



Limestone 



Ore 



Shale 



Shale 



80 



100 



115 



130 



133 



184 



205 



o 2 



6 , 70 



80 



o 100 



O II ^ 



8 ; 130 



6 133 



6 ' 182 



o 184 



o 197 



o 207 



197 



6 



198 



6 



198 



6 



199 



4 



199 



4 



200 







200 







205 







Light gray above, becoming 

 darker and more fossiliferous be- 

 low. Represents basal Rochester. 



Light colored, layers 2 to 16 

 inches separated by thin shales, 

 I to 6 inches. Upper Clinton 

 limestone. 



In appearance this shale is 

 similar to the basal Rochester. 

 It is fully as dark and its numer- 

 ous fossils are evenly distributed 

 through the mass, -giving it a 

 variegated appearance. 



Similar to above, but with 

 fewer fossils and of a lighter 

 shade. 



These dark layers include the 

 graptolite beds with the charac- 

 teristic form M. clintonen- 

 s i s . 



The limestone contains layers 

 of shale i to 3 inches thick. Pen- 

 tamerus is the characteristic fos- 

 sil of the limestone. 



Fossiliferous dark and olive- 

 gray shale with included bands of 

 limestone. Transitional from the 

 limestone above. The division is 

 at point where shale predomi- 

 nates over the limestone. 



A uniform purple shale; con- 

 tains bands of pearly limestone 

 made up of the fossil A n o p 1 o - 

 theca hemispherica. 



The purple shale above changes 

 rather abruptly to this olive-gray 

 shale which passes gradually into 

 the limestone below. 



Characterized by the fossil 

 Pentamerus. The limestone is 

 uniform above. Near the middle 

 is found some flinty material giv- 

 ing the rock a brecciated appear- 

 ance. Layers of shale in lower 

 part. First trace of ore at 195 

 feet. 



Impure fossil ore. 



Includes some shale. 



Fossil ore. 



Soft green calcareous shale. 

 The u])i)er 2^ inches is brocciattMl. 

 arenaceous limestone containing 

 black shale pebbles. 



Soft mottled shal" - *" <!'-■ M< 

 dina formation. 



