DEPOSITS OF THE LAKE CHICAGO BASIN 



49 



D. CHURCH STREET TO CENTRAL AVENUE 



station 49 (Plate XXIV) 



300 feet north of Church Street. Surface 597 feet A.T.; 17 feet A.L.M. 



Strata 



Deposit 



Depth 



Remarks 



VI 



Silt and loam 



12 



60 



1 



36 



4 

 144 



257 



No mollusks. 



V 



Blue clav 



With rootlets. 



IV 



Yellow sand 





III 



II 



Sandy clay, with pockets of sand.. 

 Yellow sandy clay 





I 



Boulder clay 







Total thickness.... 





STATIONS 50 TO 53 



1200, 2000, 3000, 4000 feet north of Church Street. Surface 597-598 feet A . T. 



Strata 



Deposit 



Depth 



Remarks 





50 



51 



52 



53 





V 



Black loam 



12 



48 



H 



48 

 144 



12 

 48 



K 

 48 

 144 



12 



48 



M 



48 

 156 



12 



48 



48 

 168 





IV 



Blue clay 



With rootlets. 



III 



Sand 





II 



I 



Laminated clay 



Boulder clay 



With pockets of sa nd . 





Total thickness ... 







252M 



252^ 



264^ 



276M 





