Tournaisian


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Tournaisian

[tu̇r′nā·zhən]
(geology)
European stage of lowermost Carboniferous time.
References in periodicals archive ?
The chondrichthyan teeth and scales were found from the drill cores in the Lower Devonian, Emsian Vitebsk Regional Stage; the Middle Devonian, Eifelian Gorodok and Kostyukovichi regional stages and the Givetian Polotsk Regional Stage; the Upper Devonian, Famennian Kuzmichi, Drozdy, Petrikov, Starobin and Borovoe regional stages; the Lower Carboniferous, Lower Tournaisian Malevka, Upa and Cherepet regional stages (see Table 1).
2006): Tournaisian forested wetlands in the Horton Group of Atlantic Canada.
The discovery of oil reserves in the Bashkirian was not included in the earlier resource and reserves review, as earlier exploration had aimed at the Bobrikovskiy and Tournaisian horizons.
The metamorphic clasts strongly resemble local basement rocks exposed as belts between conglomeratic domains in Isle Madame, indicating that these deeper crustal rocks were unroofed within the former basin in the late Tournaisian, resulting in redirected drainage patterns.
The well was drilled as a deviated directional oil production well for the Tournaisian reservoirs using the same technology as in side-tracked well 24.
The well proved gas/condensate in the Tournaisian F1-A formation.
These wells are intended to raise additional production from the Visean aged reservoirs (B-sand) and to appraise and develop the deeper Tournaisian (T-sand) and Devonian (D-sand) aged reservoirs.
The partners have proven and tested gas in Tournaisian sandstones in the Tinerkouk well (TNK-1).
The Khovanshchinian RS conformably overlies the Ozerkian RS, but there is a hiatus between the former and the locally overlying it basal Tournaisian Kupavna Formation of the Malevkian RS (Rodionova et al.
This age represents the maximum possible for deposition of the Del Raton Formation that is bound to be just at the end of the Tournaisian or more likely in the Visean, in agreement with palynological data (Amenabar and di Pascuo, 2008).
The Horton Bluff Formation has been palynologically dated as Tournaisian (Ivorian) (Utting et al.
2006, Tournaisian age of granitoids from the Odra Fault Zone (southwestern Poland): equivalent of the Mid-German Crystalline High?