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Swiss Journal of Geosciences
Fig. 6 | Swiss Journal of Geosciences

Fig. 6

From: Reconciling strontium-isotope and K–Ar ages with biostratigraphy: the case of the Urgonian platform, Early Cretaceous of the Jura Mountains, Western Switzerland

Fig. 6

Comparison of the Sr–isotope ratios measured on rhynchonellids from the western Swiss Jura with the ammonite-calibrated 87Sr/86Sr curve obtained from belemnites from the Vocontian Trough (data from van de Schootbrugge 2001; McArthur et al. 2007; Bodin et al. 2009). Absolute ages on the vertical axis are after the ICS Timescale (2009)

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