SEC. 7.] THE CHARWAR AND KATROL RANGE. 185 



To these succeed the thick brown and light-colored, ferruginous, 

 mottled sandstones of the upper group, becoming more shalj above, 

 with plant impressions, and underlying the usual coarse white felspathic 

 and conglomeritic sandstones. These disappear to the south beneath 

 the stratified traps. 



West of Katrol the range is traversed by several trap dykes, some 

 having the triple arrangement already mentioned, 



West of Katrol Hill. . . 



indurating and otherwise altering the adjacent 

 rocks. Still lower beds than have hitherto been described, includino- 

 several highly fossiliferous bands, are exposed on the northern side of 

 the range. 



The following section, taken from the fault south of Boojooree to 

 the crest of the range, will show the succession of the rocks : — 



Natural or descending order. 

 (General dip south at low angles). 

 14 — Yellow rubbly sandstones, with shaly and flaggy bands, marked by large worm- 

 tracks(?) with central line, and some thin layers crowded with minute seed-like 

 bodies resembling Cypridina. 

 Note.— (A large basaltic dyke (x) crosses these beds, bearing south-east, altering 

 the shales in its vicinity). 

 13. — Softer yellow, argillaceous beds, with fine thinly-laminated sandstones ; lower part 



with thin earthy crisp layers. 

 12. — Coarse calcareous grit. 



11. — Soft shales with thin harder bands. Fragments of Ammonites about the surface. 

 10. — Rubbly yellow sandstones, with annelid tubes and impressions of wood. 

 9. — Red lumpy concretionary bands among softer yellow beds. A few Ammonites and 

 fossil wood. 



Dip south, angle 35°. 

 8. — Dark yellow clay, decomposing, with small green flakes and red specks. 

 7. — Yellow earthy gypseous and dark finely-laminated shales, with hard bands of 

 nodules (bored by moUuscs) resembling conglomerate. In these bands occur 

 Ammonites, large Belemnites, Trigonia, Pecten, n. sp., species of oyster of the 

 type of Ostrea rostellata. 



6. Rubbly argillo-calcareous bed in gypseous clays, with red lumpy concretions. 



5. Hard, dark, coarse sandstone, false-bedded, parts red and lumpy, sections of large 



bivalves, Belemnites deeply grooved to the point, Trigonia costaia, small Pecten, 

 &c. ; shells more abundant in upper part. 



( 1S5 ) 



