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Authors: Giaccio, B.* 
Castorina, F.* 
Nomade, S.* 
Scardia, G.* 
Voltaggio, M.* 
Sagnotti, L.* 
Title: Revised Chronology of the Sulmona Lacustrine Succession, Central Italy
Issue Date: Aug-2013
Series/Report no.: 6 / 28 (2013)
DOI: 10.1002/jqs.2647
Keywords: 40Ar/39Ar dating; central Italy
Sr isotope composition
Sulmona lacustrine succession
Brunhes–Matuyama geomagnetic reversal
U-series dating
Subject Classification04. Solid Earth::04.04. Geology::04.04.08. Sediments: dating, processes, transport 
04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy 
04. Solid Earth::04.05. Geomagnetism::04.05.06. Paleomagnetism 
Abstract: We present new stratigraphic, palaeomagnetic, 87Sr/86Sr and 40Ar/39Ar data from a lacustrine succession of the Sulmona basin, central Italy, which, according to an early study, included six unconformitybounded lacustrine units (from SUL6, oldest, to SUL1, youngest) spanning the interval >600 to 2 ka. The results of the present study, on the one hand confirm some of the previous conclusions, but by contrast reveal that units SUL2 and SUL1, previously attributed to the Holocene, are actually equivalent to the older SUL6 and SUL5 units – here dated to 814–>530 ka and 530–<457 ka, respectively – and that the U-series dates previously published for both former SUL2 and SUL1 units yielded abnormally young ages. In light of the present results, a reassessment of the chronology of the Sulmona basin succession and a revision of the tephrostratigraphy of the SUL2/SUL6 and SUL1/SUL5 units is in order.
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