Articles | Volume 20, issue 3
https://doi.org/10.5194/cp-20-637-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-20-637-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Mar 2024
Research article |
| 22 Mar 2024
| 22 Mar 2024
Weathering trends in the Norian through geochemical and rock magnetic analyses from the Pignola–Abriola section (Lagonegro Basin, Italy)
Matteo Maron
CORRESPONDING AUTHOR
Department of Engineering and Geology, University “G. d'Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
Tetsuji Onoue
Department of Earth and Planetary Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
Sara Satolli
Department of Engineering and Geology, University “G. d'Annunzio” of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
Katsuhito Soda
Center for Advanced Marine Core Research, Kochi University, B200 Monobe, Nankoku, Kochi 783-8502, Japan
Honami Sato
Department of Earth and Planetary Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
Department of Geosciences, University of Padua, Via G. Gradenigo 6, 35131 Padua, Italy
Giovanni Muttoni
Department of Earth Sciences “Ardito Desio”, University of Milan, Via L. Mangiagalli 34, 20133 Milan, Italy
Manuel Rigo
Department of Geosciences, University of Padua, Via G. Gradenigo 6, 35131 Padua, Italy
Institute of Geosciences and Earth Resources (IGG-CNR), Via G. Gradenigo 6, 35131 Padua, Italy
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Short summary
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A total of 42 Earth scientists from 14 countries met in Gioia dei Marsi, central Italy, on 23 to 27 October 2023 to explore the potential for deep drilling of the thick lake sediment sequence of the Fucino Basin. The aim was to reconstruct the history of climate, ecosystem, and biodiversity changes and of the explosive volcanism and tectonics in central Italy over the last 3.5 million years, constrained by a detailed radiometric chronology.
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Publication in CP not foreseen
Short summary
Short summary
We demonstrate that coarse gravel deposition in the catchment basins of the major rivers of central Italy is a direct proxy of global deglaciation events associated with meltwater pulses. By precise 40Ar/39Ar dating of the sedimentary deposits we show that emplacement of these gravel beds is closely coincident with discrete events of sea-level rise, with peaks of the Ice-rafted debris (IRD) curve, and with particularly mild (warmer) minima of mean summer insolation at 65° N.
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Short summary
For better knowledge of the climate perturbation that occurred in the lattermost part of the Triassic (Norian–Rhaetian), we investigated the geochemical and rock magnetic properties of the limestones of the Pignola–Abriola section (Lagonegro Basin, Italy). Our investigation revealed at least a major episode of enhanced weathering occurring in the late Norian (~217–211 Ma), possibly related to the Cimmerian orogen and/or the northward motion of Pangea across the equatorial humid belt.
For better knowledge of the climate perturbation that occurred in the lattermost part of the...
