I9I5- N'o-4- 



REPORT 0.\ ROCK-SPECIMENS. 



29 



certainly belong to an ancient rock-complex of pre-Cambrian age, analogous 

 to the South Victoria Land gneissic series of pre-Cambrian age. It is stated 

 from the rock-specimens collected that the granite from Scott's Nunataks is 

 vount^er than the gneisses. The exact age of the granite can not be proved; 



k \ 



F..-. 12. Sketch Map of ihe Aa:arcdca. According to O. Nordexskiôld. 



but as shown above the connection of the granite from Scott's Nunataks 

 with the granite from Mt. Betty is very close, and the granite from Scott's 

 Nunataks ^could as well as the granite from Mt. Bettj- be of post-Cambrian 

 age and belong to the post-Cambrian and pre-Gondwana intrusive granites 

 from South Victoria Land. 



