Record of a sea level drop in the lower Mississippian limestones near Passo di Monte Croce Carnico (Carnic Alps, Italy). : sea level drop in the Carboniferous of the Carnic Alps
Corradini, Carlo (Università di Trieste (Itàlia))
Corriga, Maria Giovanna (Università di Trieste (Itàlia))
Pondrelli, Monica (Università d'Annunzio (Itàlia))
Spalletta, Claudia (Università di Bologna (Itàlia))
Zocchi, Camilla (Università di Trieste (Itàlia))
Corradetti, Amerigo (Università di Trieste (Itàlia))

Date:	2025
Abstract:	The lower Carboniferous succession of the Carnic Alps represents the best-preserved example of such stratigraphic interval within the Alps, thus providing crucial insights for paleogeographic and paleoclimatic reconstructions. This research focuses on the combined biostratigraphic and sedimentological analyses of a stratigraphic section near Passo di Monte Croce Carnico (central Carnic Alps). The presence of two polygonal sedimentary structure-bearing levels suggests a sea-level drop. Conodont biostratigraphy places these events within the lower part of the Gnathodus interregnum, correlating with the latest Tournaisian. These data, combined with insights from coeval sedimentary records within the Carnic basin and from other basins worldwide, indicate that higher-frequency sea-level fluctuations, superimposed on an overall regressive trend, influenced the late Tournaisian evolution of the Carnic Basin.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Eustatic variations ; Conodont biostratigraphy ; Tournaisian ; Carboniferous
Published in:	Geologica acta, Vol. 23 (2025) , p. 1-15 (Articles) , ISSN 1696-5728

Adreça original: https://revistes.ub.edu/index.php/GEOACTA/article/view/48860
DOI: 10.1344/GeologicaActa2025.23.14

15 p, 5.5 MB

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