FIGURE 26. Portion of a typical "youthful" tabular 

 antarctic iceberg. Recent formation of this berg by break- 

 ing off from shelf ice is indicated since there are, as yet, 

 no sea caves or other evidence of sea weathering devel- 

 oped along the waterline. 



FIGURE 27. View of a typical pyramidy iceberg. This 

 has the form of a moderately weathered "mature" berg. 

 Note the tilted and uplifted shoreline produced by a 

 calving which changed the center of gravity. 



