In the Hunnebergian to Kunda interval (Arenig), the conodont association recorded from Horns Udde (Oelans, Sweden) show a change from cosmopolitan to provincial. After a prominent Precordillera faunal influx in Billingenian, the Vokhov fauna is characterized by taxa typical of the Baltic Province. The change of the conodont fauna is connected with sea level changes and indicates a shallowing of the shelf environment. Sea level fluctuations, within a more general shallowing, are evidenced by changes in the conodont biofacies and supported by Sr and Ca isotope analyses for the interval under consideration.
Changes in conodont provincialism and biofacies during the lower Ordovician in Oeland, Sweden.
BAGNOLI, GABRIELLA;
1997-01-01
Abstract
In the Hunnebergian to Kunda interval (Arenig), the conodont association recorded from Horns Udde (Oelans, Sweden) show a change from cosmopolitan to provincial. After a prominent Precordillera faunal influx in Billingenian, the Vokhov fauna is characterized by taxa typical of the Baltic Province. The change of the conodont fauna is connected with sea level changes and indicates a shallowing of the shelf environment. Sea level fluctuations, within a more general shallowing, are evidenced by changes in the conodont biofacies and supported by Sr and Ca isotope analyses for the interval under consideration.File in questo prodotto:
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