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A 12- to 14-million year faunal diversity cycle in the Ordovician of Western Baltica
12- to 14-million year faunal diversity cycle Ordovician of Western Baltica
2009/12/3
The faunal (all fossil groups) species diversity curve for the Ordovician of Norway shows a strong and statistically significant cycle with a period of 12 to 14 million years. The cycle is supported b...
Detrital zircon ages and provenance of the Late Neoproterozoic and Palaeozoic successions on Severnaya Zemlya,Kara Shelf:a tie to Baltica
Detrital zircon ages provenance Neoproterozoic and Palaeozoic successions
2009/12/2
The Neoproterozoic to Devonian sedimentary successions of Severnaya Zemlya, in the Russian high Arctic, have been sampled for detrital zircon provenance studies. 50-100 zircons were analyzed from 11 s...