172 



PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



[Feb. 6 



Mr. Wyley's 

 Nomenclature. 



Tertiary 



Jurassic (Oolite) 



New Eed Sand- 

 stone. 



'' Upper 



Middle. 



Lower 



Upper Ka- 

 roo Shale. 



Trap -conglo- 

 merate. 



Carbo- ""i t ^^^„ 



shale ? 



Shales. 



Thick- 

 ness in 

 feet. 



100? 



800? 



1800 



1700 



1500 



1200 



500 

 to 

 800 



800 



Mr. Wyley's Description of the 

 Beds. 



Marine clays and limestones 

 near Oliphant's Hoek. Lig- 

 nite beds and clays, and Ti- 

 gervley Sandstone of the Cape 

 Plats. 

 400 ? Sunday's Eiver Beds, with ma- 

 rine shells, fossil wood, and 

 land Plants ; Koega Beds, 

 Zwartkop Beds ; Bushman 

 Eiver Beds. 



Enon Conglomerate, Bushman's 

 Eiver Sandstones and Conglo- 

 merates, Knysna Conglome- 

 rate. 



Stormberg Beds; upper beds 

 of the Sneeuwberg, Nieuwveld, 

 and Eoggeveld, &c. Distinct 

 tiers of sandstone, separated 

 by shales: abundance of land 

 Plants, beds of coal and gra- 

 phite (altered coal) ; reptilian 

 remains, but not abundant. 



Proper Eeptilian or Dicynodon 

 Beds; purple, gTcenish, and 

 grey shales, witli fewer sand- 

 stone beds : Eeptilian bones, 

 Fish teeth, Plants. 



Brown sandstone and shales, 

 greenish do. : with Plants 

 pretty common, especially in 

 the upper part of the scarp 

 of the Kleine Eoggeveld, Fish 

 Eiver, and at Fort Brown. 



Shales usually dark-grey, with 

 few sandstone beds : Karoo 

 plain ; Fort Brown Flats ; 

 Ecca Shales : impressions of 

 land Plants. 



Trappean conglomerate, or har- 

 dened trap-ash, vsdth numer- 

 ous rounded and angular frag- 

 ments of the older rocks, from 

 the smallest grain to two feet 

 in diameter, conformable as a 

 mass to the beds above and 

 below; having a rude cleav- 

 age nearly, at right angles to 

 the general bedding. 



Lower Karoo Shales; dark shales, 

 visually contorted, like the 

 sandstone below them; of 

 small thickness, though seen 

 both at Pienaar's Kloof and 

 the Zuurberg. (Marine shells 

 [?], Bain.) 



Nomenclature 



used in this 



Memoir. 



Jurassic. 



Stormberg "1 

 Beds. 



Beaufort 

 Beds. 



KOONAP 



Beds. 



[ Upper EccA 

 f Beds. 



Trap- 

 breccia. 



LOAVER 



Ecca Beds, y/ 



I 

 O 



