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Using tephrochronology and palynology to date the MIS 13 lacustrine sediments of the Mercure Basin (Southern Apennines, Italy)

Paola Petrosino, Elda Russo Ermolli, Paola Donato, Brian Jicha, Gaetano Robustelli and Raffaele Sardella
Using tephrochronology and palynology to date the MIS 13 lacustrine sediments of the Mercure Basin (Southern Apennines, Italy)
Italian Journal of Geosciences (June 2014) 133 (2): 169-186

Abstract

The paper deals with the chronostratigraphy of the lacustrine infilling of the Mercure basin, an intramontane depression of the Southern Apennines, located along the Calabria-Lucania boundary. A preliminary tephrochronologic investigation and pollen analyses were carried out on the infilling succession exposed along V-shaped tributary valleys of the Mercure river. Lithological and chemical features of the thickest and best preserved tephra layer were fully characterised, and single crystal (super 40) Ar/ (super 39) Ar dating was performed yielding an age of 514+ or -16 ka. Pollen analyses revealed the occurrence of warm and humid interglacial conditions that were correlated to MIS 13 on the basis of the age determination. The chemical compositions of glasses indicate that the Sabatinian volcanic field is the most probable source of the investigated tephra layer. Although chemical features support a correlation with the Tufo Giallo della Via Tiberina multiphase eruption that occurred between 561 and 548 ka, the integration of tephrochronology and pollen analysis points to a younger age, falling within MIS 13. We propose a correlation with one of the four explosive events that occurred in the Latial district from 514-449 ka. The Mercure tephra layer, owing to its age and great distance from the presumed source, represents a valid correlating tool for MIS 13 in central-southern Italy.


ISSN: 2038-1719
EISSN: 2038-1727
Coden: BOGIAT
Serial Title: Italian Journal of Geosciences
Serial Volume: 133
Serial Issue: 2
Title: Using tephrochronology and palynology to date the MIS 13 lacustrine sediments of the Mercure Basin (Southern Apennines, Italy)
Affiliation: Universita di Napoli Federico II, Dipartimento di Scienze della Terradell'Ambiente e delle Risorse&, Naples, Italy
Pages: 169-186
Published: 201406
Text Language: English
Publisher: Societa Geologica Italiana, Rome, Italy
References: 71
Accession Number: 2014-058131
Categories: GeochronologyQuaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 6 tables, geol. sketch map
N39°00'00" - N40°30'00", E15°45'00" - E16°30'00"
Secondary Affiliation: Universita della Calabria, ITA, ItalyUniversity of Wisconsin at Madison, USA, United StatesSapienza Universita di Roma, ITA, Italy
Country of Publication: Italy
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Societa Geologica Italiana. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201431
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