﻿GEINITZ ON THE QUADER-FORMATION. 



7 



and calcareous rocks younger than the Oolitic or Jurassic and "Weal- 

 den formations, and older than the Molasse, Tertiary, or Brown-coal 

 formations. 



All the marly beds interstratified in the Quadersandstein are here 

 termed Quadermergel, whilst Greensand, Chalk-flags [Planerkalk], 

 Marl-flags [Pldnermerget], Sandstone-flags[Planersandstein\ varie- 

 gated Marl [Flammenmergel], Chalk Marl, Chalk, and other familiar 

 local terms, have reference only to the local condition of the strata, 

 which although sometimes resembling one another, as the Upper and 

 Lower Quadersandstein, or a younger and an older greensand, have 

 frequently considerable varieties of character. 



The following arrangement of the series (p. 5) obtains in Germany : 

 I. Upper Quadersandstein, in part with Clay-schist and Free-stone- 

 coal [Quaderkohle] . 



II 



Quader- 

 mergel. 



1. Upper Quader- J 

 mergel. j 



mergel. 



3. Lower Quader- 



mergel. 



III. 



< 



i 



C Upper White Chalk with Fire- 

 stone, Tuff-chalk, Chalk Marl, 

 Chlorite-chalk or Greensand, 

 Bohemian Marl-flags of Reuss. 

 Middle Quader- f Lower White Chalk Upper Flags 

 I or Chalk-flags, Chlorite-chalk 

 or Greensand. 

 Lower Flags or Marl- and Sand- 

 stone-flags, also Variegated 

 Marl, Greensand, Hippurite 

 beds, Roemer's Hils-conglo- 

 merate of Essen. 

 Lower Quadersandstein ; — its upper beds passing into the Green- 

 sand of the Lower Quadermergel ; — in part with Clay-schist 

 and Quadercoal. 

 IV. Hils-clay and Hils-conglomerate=Neocomian. 



The above is accompanied by, and compared with the Classifica- 

 tion of the Cretaceous formation of France, as given by M. Alcide 

 d'Orbigny in his ' Paleontologie Francaise, Terrains Cretaces,' torn. ii. 

 1842 ; and is also compared with the Cretaceous series of England. 

 The chief differences pointed out are, that the Gault or its equivalent 

 does not appear in the German classification, and that the Upper 

 Quadersandstein is not represented in the English and French 

 systems. 



After a notice of the works and opinions of various authors on the 

 Cretaceous series of Germany, in its totality or in part, succeeds a 

 detailed account of the occurrence and characters of the different 

 members of the formation under notice, at — 1. Aix-la-Chapelle, Mae- 

 stricht, Liege, and Verviers, p. 13 ; 2. Westphalia, p. 17; 3. Ha- 

 nover, p. 30 ; 4. The Hartz, p. 35 ; 5. Saxony, p. 45 ; 6. Bohemia, 

 p. 60 ; 7. Katisbon, p. 63 ; 8. Silesia, p. 64 ; 9. Moravia, Galicia, 

 and Poland, p. 68; 10. Countries of the Baltic, p. 68; and 11. 

 Denmark and Sweden, p. 72. 



The subjoined Table (pp. 75, 76) affords a synoptical view of the 

 strata of the Quadersandstein formation in the different countries of 

 Germany. 



