Palynological and stratigraphical problems of Middle Triassic siliciclastics from Croatian off-shore well Susak more-1 (Adriatic sea) and NW Slovenia

• Published in: Geologia Croatica Vol. 47; no. 1; pp. 1 - 24
• Main Authors: JERINIC, G, JELEN, B
• Format: Journal Article
• Language: English
• Published: Zagreb Institute of Geology 01.06.1994
• Subjects: Earth sciences; Earth, ocean, space; Exact sciences and technology; Paleobotany; Paleontology; Stratigraphy; East Mediterranean; Europe; Southern Europe; Slovenia; Mediterranean Sea; Adriatic Sea; Croatia; MED, Adriatic Sea; MED, Slovenia; Mesozoic; palynomorphs; Scythian; Lower Triassic; Middle Triassic; Ladinian; Anisian; biostratigraphy; chronostratigraphy
• ISSN: 1330-030X

The palynological assemblages from Slovenian Middle Triassic sections and Susak More-1 off-shore well always contain Permian, Scythian and Scythian-Lower Anisian palynomorphs. Middle Triassic palynomorphs were very rare (as in well SM-1) and totally absent in almost all Slovenian sections strongly suggesting the possibility that in these sections the Permian palynomorphs were reworked into the Scythian-Lower Anisian deposits. This palynostratigraphical evidence was clearly in contradiction with the age of some of these chronostratigraphically well defined Slovenian Upper Anisian-Ladinian sections. As the siliciclastics in well SM-1 are only palynostratigraphically controlled, the correlation with Slovenian sections is entirely based on palynological analogy. The palynological analogy of the Sbvenian sections, Susak More-1 off-shore well and palynostratigraphycally controlled Middle Triassic siliciclastics from off-shore well Maja-1 (open sea side of the south Croatian Islands) indicates on a regionally extensive sedimentary realm which resulted from the aborted rifting during the Middle Triassic.