Abstract
The Latemar is a mainly aggrading platform, but shows repeated backstepping during its entire development. The behaviour of the slope does not reflect accommodation changes and lateral consistencies of the lagoonal interior; the Latemar contemporaneously reveals different, even contrasting depositional characteristics. The slope of the late stage platform evolution corresponds at least partially to the “base-of-slope apron” model. Controlling factors on slope evolution are of tectonic (proximity of the Stava Line) and autocyclic (repeated oversteepening) nature. Other factors are insignificant and/or overprinted.
The reef-facies at Latemar reveals a complex facies pattern; it varies along and across the margin and is rich in encrusting sponges, corals, biogenic crusts and “Microproblematica”. Some biota or fossil assemblages—e.g. foraminifers (Abriolina mediterranea, Turriglomina scandonei) or “Tubiphytes” multisiphonatus thrombolites—have not been described in the Dolomites before. Biostratigraphic evidence from the uppermost reef-facies confirms a mainly Anisian age of the outcropping platform interior.
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Acknowledgements
The authors would like to acknowledge Baba Senowbari-Daryan (University of Erlangen, Germany) for palaeontological discussions. Axel Emmerich thanks the “Studienstiftung des deutschen Volkes” (German National Academic Foundation) and the International Postgraduate Programme (University of Heidelberg, Germany) for financial support during fieldwork and travel. To Ioan Bucur (Cluj-Napoca, Romania), André Freiwald (Erlangen, Germany) and Rüdiger Henrich (Bremen, Germany) we owe many valuable comments on the manuscript.
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Emmerich, A., Zamparelli, V., Bechstädt, T. et al. The reefal margin and slope of a Middle Triassic carbonate platform: the Latemar (Dolomites, Italy). Facies 50, 573–614 (2005). https://doi.org/10.1007/s10347-004-0033-6
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DOI: https://doi.org/10.1007/s10347-004-0033-6