1821] M r . Weaver on Flaetz Formations. 413 



l/ Quadersandstone, a yellowish and greyish-white fine 



n^^anXtone, a yellowish, brownish, or ash-grey sandy 



mJ 3 ' Plane marl, a pure calcareous marl. 



4 Plane limestone, a grey fine-grained rock. 



5. Slaty clay marl and 'day, micaceous, and of greenish, 



yellowish, and ash-grey colours 



fi Grev coarse sandstone, and conglomerate. . 



These substances maybe traced passing -£^^-^ 



another The clay inarl -£-£*»? " IS-^^SS 



"SuTel" disseminated green earth is very common in the 

 plane mart ; and sometimes also in the quadersandstone, in 



^/b^dfof SorSon alternating and P-sing frequently 

 into each other, it can only be loosely stated in what quarter 

 particular beds predominate. In the southern portion of the 



ssiboXate; and beyond. this, pla ne l-«^ »** 



the quadersandstone appearing only m 8ub ^^ 1 ° e ™* ently 



The animal remains noticed in this trac aie ^"^P^ e ™J 



helonmno- to the genera centhium, tumtella, and tuibo also 



observed Of vegetable remains, Baron von Buch remarked 

 netrTfied leaves of trees, intermingled with shells, in the conglo- 

 merate of Keslingswald ; and M. von Raumer noticed a reed- 

 Xtm in plane 8 sandstone near Hundorf, «**^*3* 

 apparently of vegetable origin, m several place. , i n the quader 

 sandstone, and in the grey clay marl Several of ^em^ns 

 are found in the most dissimilar beds of the ioimation e g. 

 pect nkes in quadersandstone, and in plane marl ; yenuhtes .in 

 Tad" andsto^e.and in the limestone which alter nates with ^the 



W ^YrT^ StTSay mart %£&ES£ 



affintt ies show that they all belong to the same formation 



The Northern deposit of this formation reposes principally on 



the old red sandstone of that quarter, but partly also on a 



nrima v slaty tract. It has hitherto been but slightly examined. 



Cd Stone appears to predominate, 1^- sandstone being 

 rare • the former contains beds of clay, and some coal, Inns 

 £ck beds of clay appear in the quadersandstone m the ^vicinity 

 of Bunzlau, in which bituminous wood is o^J" 

 Wenig Rackwitz, they contain pitch coal. In some quarters 



