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Astronomical forcing and geochronological application of sedimentary cycles in the Mediterranean Pliocene-Pleistocene

By F.J. Hilgen


A new, astronomically calibrated time scale is presented for the Mediterranean\ud Pliocene based on the correlation of sedimentary cycles to astronomical curves which\ud describe the quasi-periodic variations in the Earth's orbit during the last 5.5 Ma. These\ud sedimentary cycles are found in a continuous deep-sea marl sequence emerged above\ud present sea-level due to tectonic uplift. For this sequence, an integrated high-resolution\ud magnetostratigraphy, (planktonic foraminiferal) biostratigraphy and lithostratigraphy is\ud established which underlies the new time scale. This time scale differs substantially from\ud more conventional time scales which rely entirely on K/Ar radiometric datin

Topics: Aardwetenschappen, geological time, sedimentation, Pliocene, Pleistocene, Mediterranean Region
Year: 1991
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