THE MET AMORPHIC ROCKS OF ADEL1E LAND .-STILLS-ELL. 



183 



Though the garnet percentage is small it is distinctive and the rock may be called 

 a garnet amphibolite. This name indicates its relation to the garnet amphibolite of 

 Stillwell Island (No. 953), though the garnet percentage of the latter is many times 

 greater. 



CHEMICAL CHARACTERS OP THE CAPE GRAY DYKE SERIES. 



The following chemical analyses of four members of this series of rocks have been 

 made by Messrs. P. G. W. Bayly and J. C. Watson, in the Victorian Geological Survey 

 Laboratory : 



I. No .773 Plagioclase Pyroxene Gneiss. Cape Gray, Adelie Land 



II. No. 767. Hornblende Plagioclase Pyroxene Gneiss. Cape Pigeon Rocks, Adelie Land 



III. No. 799. Garnet Amphibolite. Garnet Point, Adelie Land. 



IV. No. 953. Garnet Amphibolite. Stillwell Island, Adelie Land. 



