BULL. GEOL. SOC. AM. 



VOL. 23, 1911, PL. 18 



Figure 1. — A low Kuck EscARr.MKXT 



Sliown at the coutact between a typical limestone residual and one of the flat or nearly 

 flat areas, which are underlain by partly frozen debris, and which characterize extensive 

 portions of the upland. 



I'KirUi: L'. I,IMi:STOXE UKSIDIAI. liUFF 



'IMie Hal. plaiiilikc ixjrtion of the upland, which here supports a typically arctic ve;j;e- 

 lalion and is underlain i>y i)artly froziMi accumulations of debris, is distinctly seen to be 

 enci-oachin.u on the linu'stone rt>sidual blulf on tlie ri.ulit of the picture. 



PLATEAU SURFACE IN THE LIMESTONE-DOLOMITE BELT WHERE EQUIPLANATION IS ACTIVE 



