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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...
The succession of Hirnantian events based on data from Baltica:brachiopods,chitinozoans,conodonts,and carbon isotopes
Hirnantian Baltica brachiopods chitinozoans conodonts graptolites carbon isotopes
2009/10/21
The Hirnantian (late Ordovician) environment was complex and dynamic. Understanding the correct order of events and their precise correlation with a time scale are extremely important for the developm...
Ordovician sponges (Porifera) and other silicifications from Baltica in Neogene and Pleistocene fluvial deposits of the Netherlands and northern Germany
Baltica Eridanos River erratics Ordovician Porifera silicifications
2009/10/21
Fluvial deposits of Miocene to Early Pleistocene age in Germany and the Netherlands were laid down in the delta of the Eridanos River System, but the exact provenance of this material continues to be ...
New biostratigraphic and chemostratigraphic data from the Chicotte Formation (Llandovery,Anticosti Island,Laurentia) compared with the Viki core (Estonia,Baltica)
conodonts stable carbon isotopes Anticosti Estonia Llandovery Telychian
2009/10/21
Due to the lack of biostratigraphically useful graptolites in the crinoidal and reefal Chicotte Formation on Anticosti Island (Québec, Canada), the precise chronostratigraphic position of the formatio...