MOYSISOyiCS AND SCHLCENEACH FLYSCH OF TTPPEE AUSTRIA. 3 



The dip is at a high, angle, in a southerly direction, towards the 

 Traunstein. The soft nature and inclined position of these marls 

 cause slips ; and the effect of these local disturbances is more or less 

 perceptible at the present time. 



Olive-green qnartzose glauconitic sandstones appear to the north 

 of the marls, abounding with Nummulites and other Eocene organ- 

 isms. Still further north, the Griinberg is entirely composed of 

 alternations of greyish-blue limestone containing fucoids, with 

 Vienna sandstones which contains the characteristic vermiform 

 markings whose nature is still undetermined. 



The depression between the Griinberg and the Traunstein con- 

 tains detrital matter evidently of glacial origin. It may be traced 

 as far as the Laudach Lake, the north-eastern end of which it bor- 

 ders as a range of low undulating hills, evidently the remains of 

 terminal moraines. Blocks of limestone from the Gschliefgraben lie 

 scattered about, brought into their present position either by run- 

 ning water or by landslips. Moraines are also seen upon a terrace 

 of glacial drift on the northern side of the Griinberg. The fine- 

 grained calcareous and micaceous sandstones which are seen in situ 

 on the west-south-western bank of the Lake of Laudach, between 

 the Cretaceous marls and the Lower Lias, may possibly be concealed 

 beneath these gravels and moraines. The sandstones in question 

 are distinctly stratified, and dip southwards at a steep angle beneath 

 the mass of the Traunstein. They rest immediately on, and pass 

 into, a conglomerate composed of fragments of primitive rocks and 

 rolled polished pebbles of white quartz, bound together by a ferrugi- 

 nous cement which is locally decomposed into rust-coloured matter. 

 Organic remains are not rare, but they are usually so imperfectly 

 preserved as not to admit of determination. The most abundant 

 fossil is an Ostrea, strikingly resembling 0. (^Gryphed) ohliqua ; 

 impressions [of Lima and Pecten are also found. The Belemnites, 

 which are probably derived from older rocks, have a decidedly 

 Liassic facies. If the Belemnites are really derived from, and the 

 Ostrea is identical with, 0. ohliqua, these conglomerates belong to 

 the Lower Tertiaries ; if this be not so, they must be placed either 

 with the upper part of the Lower Lias or the lower division of the 

 Middle Lias. 



The calcareous sandstones above mentioned are lithologically iden- 

 tical with those of the upper region of the Gschlief ravine, which 

 Mr. Stur placed in the lower division of Quenstedt's Lias /3, on ac- 

 count of the evidence afforded by such typical fossils as Ammonites 

 ohtusus, Sow., A. stellaris, Sow., A. oxynotus. Quenst. (?), Ostrea 

 (Gryphed) obliqua, Goldf. sp., Pecten Hehli, P. teoetorius, Lima gi- 

 gantea, Terebratula cor, Lam., &c. 



In the same ravine are found blocks of splintery, occasionally 

 schistose, grey limestone, containing isolated dark spots similar to 

 those of the " spotted marls," and specimens of Ammonites mar- 

 garitaceus, thus representing the middle subdivision of the Lias. 



The above facts seem to prove that an inversion of the strata has 

 taken place between the Lakes of Traun and Laudach, as has been 



