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Mandl et al. (2010)
mhornДата: Wednesday, 24.11.2010, 18:54 | Сообщение # 1
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Mandl G.W., Dulai A., Schlögl J., Siblik M., Szabo J., Szente I., Vörös A. (2010) First Results on Stratigraphy and Faunal Content of the Jurassic between Bad Mitterndorf and Toplitzsee (Salzkammergut, Austria) // Abhandlungen der Geologischen Bundesanstalt, Bd.65. P.77-134.

Pdf: http://www.geologie.ac.at/filestore/download/AB0065_077_A.pdf

The southwestern foothills of the Totes Gebirge expose a sedimentary succession from uppermost Triassic Dachstein Limestone to Jurassic basinal sediments, persisting until Kimmeridgian. There probably exist two different Lower to (?)Middle Jurassic successions: In the Zwicker-Wolfskogel area the Dachstein Limestone is covered by Upper Hettangian to Lower Pliensbachian Allgäu Beds, followed by Upper Pliensbachian Hierlatz Limestone and red crinoidal limestones with “Bositra” microlumachelles of (?) Middle Jurassic age. In the Flodring-Klaushöfl area the sedimentary gap between Dachstein Limestone and Hierlatz Limestone cover the entire Hettangian. No Allgäu Beds are present here. Hierlatz Limestone has yielded mainly Sinemurian, a few Lower Pliensbachian and two Toarcian ammonite associations. The Upper Jurassic rests discordantly on older rocks and is mainly represented by the detritic Tressenstein Limestone (bioclasts from coeval Plassen carbonate platform and slope) in close connection with basinal Oberalm Limestone. The former contains large olistoliths of Lower Jurassic Hierlatz Limestone as well as centimeter-sized clasts of Lower Triassic Werfen Beds. The area is probably affected by intra-Jurassic (gravitational) tectonic, the Zwicker-Wolfskogel succession might be part of a large gliding mass. A remarkable rich and diverse fauna of ammonites, brachiopods, gastropods and bivalves is described in detail from a large olistolith of Sinemurian Hierlatz Limestone. Additionally the faunal content of a great number of short living outcrops is documented – outcrops beneath uprooted trees created during strong winter storms 2005–2007.


Middle Jurassic - Lower Cretaceous ammonites & aptychi
 
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