globalchange  > 气候变化与战略
DOI: 10.1016/j.earscirev.2021.103706
论文题名:
Mediterranean tephrostratigraphy and peri-Tyrrhenian explosive activity revaluated in light of the 430-365 ka record from Fucino Basin (central Italy)
作者: Monaco L.; Palladino D.M.; Gaeta M.; Marra F.; Sottili G.; Leicher N.; Mannella G.; Nomade S.; Pereira A.; Regattieri E.; Wagner B.; Zanchetta G.; Albert P.G.; Arienzo I.; D'Antonio M.; Petrosino P.; Manning C.J.; Giaccio B.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2021
卷: 220
语种: 英语
中文关键词: Marine Isotope Stage 11 ; Mediterranean tephrochronology ; Peri-Tyrrhenian explosive volcanism
英文关键词: chronostratigraphy ; igneous geochemistry ; lacustrine deposit ; marine isotope stage ; paleoclimate ; Pleistocene ; stratigraphy ; tephrochronology ; volcanic ash ; volcanic eruption ; volcanism ; Abruzzi ; Fucino Basin ; Italy ; L'Aquila
英文摘要: Accurately reconstructing the scale and timing of dynamic processes, such as Middle-Late Pleistocene explosive volcanism and rapid climatic changes, requires rigorous and independent chronological constraints. In this framework, the study of distal volcanic ash layers, or tephra, transported and deposited over wide regions during explosive volcanic eruptions, is increasingly being recognised as a fundamental chronostratigraphic tool for addressing these challenging issues. Here we present a high-resolution distal tephra record preserved in the lacustrine sedimentary succession of the Fucino Basin, central Italy. The investigated record spans the 430-365 ka time interval, covering the entirety of Marine Isotope Stage 11 (MIS 11), and provides important insights into peri-Tyrrhenian potassic explosive volcanism from sources located in central Italy against a backdrop of Mediterranean palaeooclimate records. The succession of ash fall events of this time interval is reconstructed through a detailed lithostratigraphic, geochemical and 40Ar/39Ar geochronological characterization of the deposits preserved as discrete layers in the Fucino F4-F5 sediment core. This work is complemented by similarly detailed characterization of selected proximal pyroclastic units from the peri-Tyrrhenian potassic volcanoes. Geochemical fingerprinting of the tephra deposits by means of their major, minor and trace elements and Sr isotope composition indicates that all the thirty-two investigated ash layers derived from the peri-Tyrrhenian potassic volcanoes. The stratigraphically continuous succession of the Fucino tephra layers allowed the development of a fully independent, 40Ar/39Ar age-constrained, Bayesian age-depth model for the investigated time interval. The age-model allows us to establish modelled ages for the tephra layers within the succession that are not directly dated. The resulting dated tephra record clearly reveals a highly time resolved and previously unparalelled chronicle of explosive activity from the Vulsini, Vico, Sabatini, Colli Albani and Roccamonfina volcanic complexes. Our study provides a benchmark and valuable geochemical and geochronological dataset to be used as a reference for any future development and application of the tephrostratigraphic methods across the central Mediterranean area both during the investigated 430-365 ka time interval, and deeper in time. This contribution underlines the importance of integrating proximal and distal sedimentary records to more accurately establish long-term and comprehensive volcanic eruption records. © 2021 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166467
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作者单位: Dipartimento di Scienze della Terra, Sapienza-Università di Roma, Rome, Italy; Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy; Institute of Geology and Mineralogy, University of Cologne, Cologne, Germany; Dipartimento di Scienze della Terra, University of Pisa, Pisa, Italy; Laboratoire de Sciences du Climat et de l'Environnement, UMR 8212, CEA-UVSQ, IPSL and Université de Paris-Saclay, Gif-sur-Yvette, France; Université Paris-Saclay, CNRS, UMR 8148 GEOPS, Orsay, 91405, France; Istituto di Geoscieze e Georisorse, IGG-CNR, Pisa, Italy; Department of Geography, Swansea University, Swansea, United Kingdom; Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, Naples, Italy; Dipartimento di Scienze della Terra, dell'Ambiente e delle Risorse, Università degli Studi di Napoli Federico II, Naples, Italy; Department of Earth Sciences, Royal Holloway, University of London, Surrey, Egham, United Kingdom; Istituto di Geologia Ambientale e Geoingegneria, IGAG-CNR, Rome, Italy

Recommended Citation:
Monaco L.,Palladino D.M.,Gaeta M.,et al. Mediterranean tephrostratigraphy and peri-Tyrrhenian explosive activity revaluated in light of the 430-365 ka record from Fucino Basin (central Italy)[J]. Earth Science Reviews,2021-01-01,220
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