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http://hdl.handle.net/2122/8779
Authors: | Giaccio, B.* Castorina, F.* Nomade, S.* Scardia, G.* Voltaggio, M.* Sagnotti, L.* |
Title: | Revised Chronology of the Sulmona Lacustrine Succession, Central Italy | Journal: | Journal of Quaternary Science | Series/Report no.: | 6 / 28 (2013) | Publisher: | Wiley-Blackwell | Issue Date: | Aug-2013 | DOI: | 10.1002/jqs.2647 | Keywords: | 40Ar/39Ar dating; central Italy Sr isotope composition Sulmona lacustrine succession Brunhes–Matuyama geomagnetic reversal tephrostratigraphy U-series dating |
Subject Classification: | 04. 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. |
Appears in Collections: | Article published / in press |
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