Stockdale: Stylolites 



9 



Fig. 3. — Typical, jagged stylolite-seam in the Salem limestone. 

 From a quarry of the Consolidated Stone Company, Dark 

 Hollow district, Lawrence County, Ind. 



Fig. 4. — Small stylolite-surface in the Salem limestone, show- 

 ing the characteristic roughness which, in itself, has the 

 physical appearance of solution. The white portions are 

 broken-off stylolites; the black, residual clay. 



