INDEX, 



HI 



Schists — 



included in granite 



at Khairla 



near Bhaonagar 



north of Erinpura 

 Sea, former extension of— into Luni valley 

 Secondary growth of quartz phenocrysts 



devitrification 

 Sedimentary rocks 

 Selo, mica granite near . 

 Shales at base of Vindhyans 

 Shingle beds of Amir . 

 Siner, section of hill at 

 Sirohi, granite in . 

 Siwanaj hills near . 

 Sivvana granite . 



petrology of 

 Slaty schists at Miniari 



at Khairla 

 Sodalite . . 



Sojat, section at 

 Sondri, Barmer sandstone at 

 Specific gravity — 



of rhyolites 



of dyke rocks . 

 Sphaerulitic structure in rhyolites 

 Stratigraphical features — 



crystalline rocks 



sedimentary rocks 

 Striated pavement near Pokaran 

 Striated twinning in felspar phenocrysts 

 Structure, flow .... 



perlitic ..... 



sphaerulitic .... 



fibrous— in devitrified glass 



granophyric — in Siwana granite 

 Sub-recent conglomerates 

 Sukri river, mica granite on . 

 Sun's heat as an agent of denudation 

 Sursagar, conglomerates at base of Vindhyans near 



•57 



49. 



PAGE. 



55 

 68 



73 

 .14,42 

 .80, 84 



83 

 26 

 66 

 •27»45 

 35 

 62 

 18 

 , 60 

 24 

 90 

 19 



55 

 92 

 26 

 77 



79 

 92 

 66, 86 



15 



26 



3» 

 82 



35 

 86 

 86 

 90 

 go 



14,36 

 68 

 10 

 45 



