A Last Interglacial record of environmental changes from the Sulmona Basin (central Italy)

Autor: Biagio Giaccio, Hendrik Vogel, Sébastien Nomade, Natale Perchiazzi, Bernd Wagner, Eleonora Regattieri, Paolo Galli, Russell N. Drysdale, Maurizio Gemelli, Ilaria Mazzini, Edoardo Peronace, Chiara Boschi, Alexander Francke
Přispěvatelé: Dipartimiento di Scienze della Terra, University of Pisa - Università di Pisa, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Paléocéanographie (PALEOCEAN), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institute for Geology & Mineralogy Cologne, Université de Cologne, Helmholtz Zentrum für Umweltforschung = Helmholtz Centre for Environmental Research (UFZ), Water and Earth System Science Competence Cluster (WESS), Department of Resource Management and Geography, University of Melbourne, IGAG-CNR, Area della Ricerca di Roma RM1, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2017
Předmět:
Zdroj: Palaeogeography, Palaeoclimatology, Palaeoecology
Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2017, 472, pp.51-66. ⟨10.1016/j.palaeo.2017.02.013⟩
Palaeogeography, palaeoclimatology, palaeoecology 472 (2017): 51–66. doi:10.1016/j.palaeo.2017.02.013
info:cnr-pdr/source/autori:Regattieri, Eleonora; Giaccio, Biagio; Nomade, Sebastien; Francke, Alexander; Vogel, Hendrik; Drysdale, Russell N.; Perchiazzi, Natale; Wagner, Bernd; Gemelli, Maurizio; Mazzini, Ilaria; Boschi, Chiara; Galli, Paolo; Peronace, Edoardo/titolo:A Last Interglacial record of environmental changes from the Sulmona Basin (central Italy)/doi:10.1016%2Fj.palaeo.2017.02.013/rivista:Palaeogeography, palaeoclimatology, palaeoecology/anno:2017/pagina_da:51/pagina_a:66/intervallo_pagine:51–66/volume:472
Palaeogeography, Palaeoclimatology, Palaeoecology, 2017, 472, pp.51-66. ⟨10.1016/j.palaeo.2017.02.013⟩
ISSN: 0031-0182
DOI: 10.1016/j.palaeo.2017.02.013
Popis: Here we present a multiproxy record (?13C, ?18O, major and minor element composition, mineralogy, and low-resolution biogenic silica content) from a lacustrine succession in the Sulmona Basin, central Italy. Based on previous tephrochronological constraints and a new 40Ar/39Ar dating of a tephra matching the widespread X-6 tephra, the record spans the ca. 129-92 ka period and documents at sub-orbital scale the climatic and environmental changes over the Last Interglacial and its transition to the Last Glacial period. The ?18O composition is interpreted as a proxy for the amount and seasonality of local precipitation, whereas variations in elemental and mineralogical composition are inferred to reflect climatic-driven changes in clastic sediment input. The observed variations are consistent among the different proxies, and indicate that periods of reduced precipitation were marked by enhanced catchment erosion, probably due to a reduction in vegetation cover. The first part of the Last Interglacial shows the most negative ?18O values. Comparison with pollen records from the Mediterranean suggests a greater seasonality of the precipitation at this time. At millennial-to-centennial time scales, comparison of the Sulmona record with speleothem ?18O records from central Italy highlights a highly coherent pattern of hydrological evolution, with enhanced variability and similar events of reduced precipitation consistently recorded by each isotope record. The observed intra-interglacial variability can potentially be linked, within the uncertainties associated with each age model, to similar variations observed in sea-surface temperature records from the Mediterranean and the North Atlantic, suggesting a link between Mediterranean hydrology and North Atlantic temperature and circulation patterns that persists during periods of low ice volume.
Databáze: OpenAIRE
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