241 



Tlie material is licddcd in layers that lie at a hij;h an.ule. sm-li as is 

 seen in delta strtiettire: the dip is in a general direction down stream. 

 Ample oppoitnnities fcu' oliservation oeeiir in cravel iiits and stream sec- 

 tions. 



The streets in ^^■est La Fayette are improved liy opening- pits in the 

 street lines and aftei'ward tillin.ii' them v\Mth the top-soil and uravelinii- over 

 them. These excavations unit(n-ndy show steeply inclined lieds. The rail- 

 road cuts through the terraces on iicth sides of the river show this strtic- 

 ttue. The valley of the \\'ea through the gravel deposits shows the same 

 thing. In the Wea \"allcy a layer of cunglomeratt' is a consiiicuous 



Cute-' I'nn.l. :i kt'tt 



s northwest of IiulependeiU'e. Ind. 



feature, dipping to\\ard the creek on the north side and from it cii the 

 south side. 



The CGUglonicrate stratum is formed of the sand and gravel of the 

 deposit cemented with carlionate of lime. It lies appiarently at a uniform 

 horizon aud is of uniform thickness. The cement is so abtindant in some 

 places as to till completely the interstices in the mass of sand ami gravel. 

 Indeed, a block left in a yard fronting on State Street in AVest I^aFayette 

 has its upper flat surface completely covered with a laytn- of pure car- 

 bonate of lime a Half inch thick. 



An interesting feature of these deposits is the occurrence of beds of 

 bowlder clav interstratitied with, the sand and gravel. This is" noticeable 



