COAST BETWEEN CAPE IRIZAR AND THE NORDENSKJOLD ICE TONGUE 67 



top of which, at a miuimum estimate, cannot have been less than 1000 feet above 

 sea-level, where the surface of the piedmont glacier is now only from 20 to about 50 

 feet above sea-level. 



Rochshoym oansoiacier Prior Island 



dt + dt bach of t/iii promoneoiy 

 5ee 

 Section t ; 



Plateau rocks of M' George Murray 

 3600 f« 



Piedmont oidcierlce 





SeCTIO\ AT t (abovesketch) 



Height dbout 150 feu above Sea level 

 Thin Glacier Ice Thin Glacier Ice 



40 feec above sea level 

 Very freshly gidcidted roches moutonnees 

 A few fine pebbles up to 2 inches 

 in diameter rest on roches 

 moatonnees 



Tioecrach 



Direction of stnation on the roches moufonnees 

 is towards the N E 



Crey gneissic granite . porphyritic by 

 white felspar and traversed by veins of 

 'coarse pegmatite fa} as well as by darker 

 and finer grained granitic veins (bj. 

 The granite is a perfect networH of such veins 



A little bright green moss grovvs m the sand 

 and gravel in cracks in the granite. 



Fig. 20 



The next outline sketch of the coast was taken at 16^ miles south of the 

 Drygalski Ice Barrier Tongue, and just north of the Cheetham Ice Tongue, looking 

 westerly. 



RoQk platform 



Piedmont 

 Ice Barrier 



High mountain 



W Howard 



: -■• Y'^^ ffT^' Vr-^ Tif^}F'igT^'^" 



■ - ^~~-^— _- -^-. " - - - - — ^~ - . isea Ice ^'^- 



FiG. 21. West coast of Ross Sea, 16J miles south of Drygalski Ice Barriei' Tongue, looking westerly 



It shows an extensive coastal piedmont aground, with the plateau rocks in the 

 background. Mount Howard has a very dark appearance, suggestive of dolerite or 

 other basic rock. 



