124 



WYNNE : GEOLOGY OF KUTCH. 



[part II. 



XJPPEE GKOITP 

 OP JtJEASSIO, — •{ 

 (fiontd). 



Brought forward ... 268-7 to 275-7 



f 11. — Similar rock, but not so finely laminated, more or loss 

 arenaceous, mottled, concretionary. Lower part 

 lateritic over dark purple sandstone ... ... 6 



10. — Thick beds of brown sandstone, earthy and streaked, 

 or speckled with white variously colored pinkish 

 brown parts; lower lavender colored; last foot or 

 two fine conglomerate ... ... ... ... 100 



9. — Parting, yellow and red ochre and white chalky ... 1 



8.— Pale, soft, mottled lateritic beds with ferruginous and 



white steatitic bands streaked with purple, some sandy 25 

 7. — Fine purplish open sandstone white specks ... 40 



6. — Soft beds, fine, pale, purple streaky, lower part thinly 



laminated and argillaceous ... ... ... 8 



5. — White steatitic gritty sandstone, no lamination, con- 

 tains cylindrical ferruginous concretions ... ... 3 



4. —Ferruginous impure sandstone weathers honey -combed 2 6 

 2. — Light colored fine gritty and steatitic sandstone with- 

 out lamination, yellow concretionary ramifications ... 7 

 1. — Earthy open sandstone streaked and speckled with 



white ... ... ... ■■• ••■ 10 



Here a dyke of pale lavender colored lava-like trap and a 

 ferruginous vein (4 feet) outs through the section ; 

 crumpled and disturbed whitish mud or silt beds 

 occur beyond the dyke. 



Total thickness 



448 to 452 ft. 



The lower beds of the above section are taken to belong to the 

 upper Jurassic group of Kutch. There seems to be a fault at the dyke as 

 the white beds beyond it dip to south 10° east. The beds to the north 

 are similar to those above deseribedj and are either horizontal or undulate. 



About Chitrore the rocks are much exposed. The town itself stands 

 on a thick escarpment of sandstone with a north- 

 erly dip of from %° to 50°. Beneath these are 

 thick, soft, white, shaly and sandy beds, red ferruginous, purple and varie- 

 gated sandstone and flags and soft pale shaly beds. All these turn over 

 and dip to the south, their inclinations just near the edge of the alluvium 

 in that direction being very steep and sometimes quite vertical. Some 

 higher beds seen here, which are particularly red and white, resemble 



( 124 ) 



Chitrore. 



