GEOLOGY OE THE UPPEE PUNJaB. 



351 



Post-Tertiary 15 



Pliocene (Lydekker) 



Mjocene? 13, 



Loess and pebble-beds, the pebbles local lime- 

 stone or crystalline rocks. 

 f " Upper Siwaliks " — coarse conglomerate clays and 

 1 4 J soft grey sandstone. 



" Lower Siwaliks " — grey sandstone and red clays ; 

 L chief ossiferous group. 

 " Murree beds " — grey and purple sandstones, 

 purple and red clays. 

 ' " Sabathu " — earthy light-coloured limestones, grey 

 sandstones, deep purple and greenish clays, 

 gypsum. The rock-salt and gypsum trans- 

 Indus occur at the base of a Nummulitic group 

 of this aspect. 



Eocene 12. 



(including upper salt beds) 



Cretaceous 11. 



Jurassic 10. 



Triassic ,...9. 



Extra-Himalayan. 



Salt Range and to the west, 

 trans-Indus. 



Pale Nummulitic limestones 

 with a band of coaly shale 

 and alum-shales below. 



Olive sandstones, conglome- 

 rates, dark boulder-shale, 

 blackish shale, and yellow 

 sandstone. 



White or light-coloured 

 sandstone, shales, lime- 

 stone, golden oolite, varie- 

 gated sandstones, and 

 clays. 



Limestones and greenish 

 shales, a limestone con- 

 glomerate. Red clays 

 and thin sandstones with 

 salt-crystal casts to the 

 eastward. 



Infra-Triassic 8. 



Carbonifekous 7. 



Limestone, dolomite, shale, 

 and sandstone ; numerous 

 fossils. 



Speckled sandstone, red and 

 lavender clays ; age un- 

 known with certainty. 



Himalayan. 

 of the outer hills 

 near the Rawal- 

 pindi plateau. 



Dislocation. 



Dark limestones with 

 fewer Nummulites 

 and olive-brown 

 shale. 



Light-coloured lime- 

 stone, and a thin 

 group of impure 

 ferruginous lime- 

 stone. 



Dark limestones, 

 shales, of grey or 

 black colour (Spiti 

 shales),sandstones 

 rarely. 



Unconformity. 



Hard limestones, 

 slaty shale, sand- 

 stones, some hge- 

 matitic layers. 

 Dolomite, Di 

 cerocardmm- and 

 Megalodon - lime- 

 stones ; whole for- 

 mation thick, 

 chiefly of lime- 

 stones. 



Siliceous dolomite 

 overlying red 

 sandstones and 

 shales at Sir-Ban 

 mountain. 



Unconformity. 

 Unknown in this 

 district, repre- 

 sented in the 

 Punch and Jamii 

 area. 



