Triassic–Jurassic organic carbon isotope stratigraphy of key sections in the western Tethys realm (Austria)

Structural complexity at and around the Triassic–Jurassic GSSP at Kuhjoch, Northern Calcareous Alps, Austria

“…The summary paper of Hillebrandt et al (2013) presented a synthesis of local stratigraphical and geological knowledge related to the Kuhjoch GSSP derived from a large number of earlier studies (Bonis et al 2009(Bonis et al , 2010Hillebrandt and Krystyn 2009;Hillebrandt et al 2007;Morton 2012;Ruhl et al 2009Ruhl et al , 2011; therefore, in the following discussion it is used as a key reference. Hillebrandt et al (2013) concluded that 'only minor tectonic overprint disrupts the sedimentary sequence'.…”

Climatic disaster at the Triassic-Jurassic boundary - a clay minerals and major elements record from the Polish Basin

“…At the very be gin ning of the Juras sic the ba sin depocenter was fi nally placed along the MPT. In Gen er al ized car bon-iso tope curve and palaeoclimatic changes are mod i fied and com piled from Hesselbo et al (2002), Korte et al (2009), Ruhl et al (2009 and Pieñkowski et al (2012). Tri as sic-Ju ras sic bound ary lo ca tion is adapted from Korte et al (2009), andPieñkowski et al (2012), FAD of Psiloceras speleae and Cerebropollenites thiergartii from Hillebrandt et al (2007), and age of "ini tial" neg a tive CIE from White side et al (2010), and Ruhl et al (2010); black strip -the old est CAMP ba salt flow in the Argana Ba sin, Mo rocco (Marzoli et al, 2004;White side et al, 2010), dark grey strip -the old est CAMP ba salt flow in the New ark and Hart ford bas ins, North ern Amer ica (Olsen et al, 2002;White side et al, 2010), light grey strip -the suc ceed ing ba salt flow in the Argana Basin, Mo rocco (Marzoli et al, 2004;White side et al, 2010) Late Rhaetian-Early Hettangian times the dis tance from the near est CAMP vol ca nic erup tions to the Pol ish Ba sin did not exceed 1500 km (Pieñkowski et al, 2014).…”

“…Char ac ter is tic fea tures of this time were profound per tur ba tions in the global biogeochemical cy cle, an increase in at mo spheric CO 2 con tent, global green house warming, and mass ex tinc tion. The Tri as sic-Ju ras sic bound ary (TJB) is char ac ter ized by pro nounced neg a tive ex cur sions in ma rine and ter res trial car bon iso tope re cords (e.g., Pálfy et al, 2001;Hesselbo et al, 2002;Guex et al, 2004;Ward et al, 2004;Galli et al, 2005;Williford et al, 2007;Ruhl et al, 2009;Deenen et al, 2010;White side et al, 2010;Pieñkowski et al, 2012) as well as per tur ba tions to other iso to pic sys tems (Co hen andCoe, 2002, 2007;Kuroda et al, 2010;Callegaro et al, 2012;Pieñkowski et al, 2012) . A ma jor Late Rhaetian "ini tial" neg a tive C iso tope ex cur sion (ini tial CIE) is usu ally sep a rated from a sub se quent long-term Hettangian "main" neg a tive C isotope ex cur sion (main CIE) by a dis tinct pos i tive shift in d 13 C values (Hesselbo et al, 2002(Hesselbo et al, , 2007Schootbrugge et al, 2008;Korte et al, 2009;Pieñkowski et al, 2012;Fig.…”

Floral changes across the Triassic/Jurassic boundary linked to flood basalt volcanism

“…(3) In the Mingolsheim core C. thiergartii has not been found, but there the first common occurrence (FCO) of Kraeuselisporites reissingerii (spore) coincides with the first appearance of the Early Hettangian ammonite Caloceras johnstoni (upper part of the lowermost Hettangian Psiloceras planorbis Zone). Correlation of Mingolsheim with the proposed global boundary stratotype section of Kuhjoch in Austria 15 shows that the lower part of the Planorbis Zone in Mingolsheim is condensed in the Psilonoten Limestone. In Austria, the first occurrence of the ammonite Psiloceras spelae is now taken to mark the T/J boundary 15 .…”