Journal article
Frequency and dynamics of millennial-scale variability during Marine Isotope Stage 19: Insights from the Sulmona Basin (central Italy)
E Regattieri, B Giaccio, G Mannella, G Zanchetta, S Nomade, A Tognarelli, N Perchiazzi, H Vogel, C Boschi, RN Drysdale, B Wagner, M Gemelli, P Tzedakis
Quaternary Science Reviews | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2019
Abstract
Among past interglacial periods, Marine Isotope Stage (MIS)19 is particularly interesting because its orbital geometry is very similar to that of the present interglacial. Here we present a high-resolution (sub-centennial)multiproxy record covering the ca. 790-770 ka interval, i.e. the interglacial MIS 19c and the ensuing glacial inception of MIS 19b, from a lacustrine sediment sequence retrieved from the Sulmona Basin (central Italy). The record has an independent chronology based on radiometric dating of six volcanic ash layers, and the resulting age model has a mean associated uncertainty of ±2.6 kyr. Variations in sediment geochemistry and mineralogy are interpreted in terms of past hydr..
View full abstractRelated Projects (1)
Grants
Awarded by Università di Pisa
Funding Acknowledgements
This work has been developed in the frame of the project HELPING (Hydrological Evolution of Past INterGlacial), funded by the National Geographic Society through an Early Career Grant assigned to E. R (CP-073ER-17). It was also part of project PRA_2018_41 "Georisorse e Ambiente" funded by the University of Pisa. <SUP>40</SUP>Ar/<SUP>39</SUP>Ar dating was funded by the SYSTER program (INSU CNRS) assigned to S. N (ChronoBM project). ER, GZ, RND and PCT were also supported by an Australian Research Council Discovery Projects grant (DP160102969). PCT acknowledges funding from the UK Natural Environment Research Council (grant NE/I025115/1). GZ, BG and GM acknowledges funding from MIUR-PRIN 2017 "Future" (leader GZ), The authors thank M.F. Sanchez-Goni, D. Hodell and T. Rodrigues for providing data for comparison, and acknowledge C. Gini, A. Chitula Moura and N. Vivoli for help with XRPD and J. Krbanjevic with FTIRS sample preparation and data acquisition. Ola Kwiecien and three other anonymous reviewers are acknowledged for their useful comments which substantially improved the quality of the manuscript.