Stratigraphic evidence for a ' pluvial phase ' between ca. 8200-7100 ka from Renella Cave (Central Italy)
| Autor: | I. Baneschi, Leonardo Piccini, Isabelle Couchoud, Ilaria Isola, John Hellstrom, Eleonora Regattieri, L.V. Zhornyak, G. Zanchetta, Russell N. Drysdale |
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| Přispěvatelé: | Dipartimiento di Scienze della Terra, University of Pisa - Università di Pisa, CNR Istituto di Geoscienze e Georisorse [Pisa] (IGG-CNR), Consiglio Nazionale delle Ricerche (CNR), Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, Department of Resource Management and Geography, University of Melbourne, School of Earth Sciences [Melbourne], Faculty of Science [Melbourne], University of Melbourne-University of Melbourne, Dipartimiento di Scinze della Terra, Dipartimento di Scienze della Terra [Firenze] (DST), Università degli Studi di Firenze = University of Florence [Firenze] (UNIFI), Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
010506 paleontology
Archeology 010504 meteorology & atmospheric sciences Paleoclimate Stalagmite Monsoon 01 natural sciences Paleontology Cave Paleoclimatology Ecology Evolution Behavior and Systematics Holocene 0105 earth and related environmental sciences Global and Planetary Change geography geography.geographical_feature_category Renella cave Geology Sapropel Floods Speleothems Italy 13. Climate action Pluvial Clastic rock |
| Zdroj: | Quaternary Science Reviews Quaternary Science Reviews, Elsevier, 2010, 30 (3-4), pp. 409-417. ⟨10.1016/j.quascirev.2010.12.003⟩ Quaternary science reviews 40 (2011): 409–417. info:cnr-pdr/source/autori:Zhornyak, L.V. (1); Zanchetta, G. (1,2,3); Drysdale, R.N. (4); Hellstrom, J.C. (5); Isola, I. (2); Regattieri, E. (1) ;Piccini, L. (6); Baneschi, I. (3); Couchoud, I. (7)/titolo:Stratigraphic evidence for a "pluvial phase" between ca 8200-7100 ka from Renella cave (Central Italy)./doi:/rivista:Quaternary science reviews/anno:2011/pagina_da:409/pagina_a:417/intervallo_pagine:409–417/volume:40 |
| ISSN: | 0277-3791 |
| DOI: | 10.1016/j.quascirev.2010.12.003⟩ |
| Popis: | International audience; A stratigraphic and chronological study of the upper level of Renella Cave (Apuan Alps, Central Italy) reveals that two episodes of flowstone accumulation bracket a thick clastic layer deposited between ca 8.2 and 7.1 ka. This layer, which represents a period of enhanced cave flooding, is substantially in phase with an interval of depleted oxygen isotope values previously recorded in a stalagmite from nearby Corchia Cave, interpreted to have resulted from an increase in local precipitation. These data confirm that during this period of time the region experienced relatively wetter conditions, including an increase in high-magnitude events capable of invading the higher passages of Renella Cave. The timing of the clastic phase occurred when the Eastern Mediterranean experienced deposition of sapropel layer S1, which is thought to reflect the stagnation of sea water produced largely by enhanced flood activity along the Nile in response to increased monsoon intensity in northern equatorial Africa. Recent estimates suggest that S1 may have lasted from ca 10.8 to ca 6.1 ka cal BP. Combined evidence from Renella and Corchia Cave indicates that the period corresponding to the wettest phase in the Apuan Alps was much shorter than this, and suggests that there is no straightforward connection between increased advection of water vapour from the Atlantic between 8.2 and 7.1 ka, as recorded in the Corchia and Renella records, and monsoon-driven enhancement of Nile discharge and S1 deposition in the eastern Mediterranean. |
| Databáze: | OpenAIRE |
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