| mhorn | Дата: Wednesday, 29.02.2012, 10:18 | Сообщение # 1 |
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| Przybylski P.A., Głowniak E., Ogg J.G., Ziółkowski P., Sidorczuk M., Gutowski J., Lewandowski M. Oxfordian magnetostratigraphy of Poland and its correlation to Sub-Mediterranean ammonite zones and marine magnetic anomalies // Earth and Planetary Science Let-ters.2010. Vol.289. P.417–432.
Pdf: http://www.geo.uw.edu.pl/igp_dyn....432.pdf
A nearly continuous magnetostratigraphic polarity pattern was compiled from several ammonite-zoned carbonate successions of southern Poland and from a composite magnetostratigraphy from the Iberian Range of Spain. The array of sections spans the middle two-thirds of the Oxfordian within the Sub-Mediterranean Province (Cordatum through Bifurcatus ammonite zones). The average pa-leopole calculated from eight of these Polish sections is at 78.5°N, 184.9°E (δp= 2.6°, δm=3.5°). The Sub-Mediterranean polarity pattern is consistent with an independent polarity pattern derived from the Boreal-realm sections of the British Isles, and improves the intercorrelation between these faunal realms. Cycle stratigraphy published for these ammonite subzones from southern France en-abled temporal scaling of the polarity pattern, thereby facilitating correlation to marine magnetic anomalies M28 through M33 as modeled from deep-tow magnetometer surveys in the Western Pacific. The bases of the Middle and Upper Oxfordian substages as defined in the Sub-Mediterranean zonation in Poland correspond approximately to chrons M33 and M29 of that Pacific M-sequence model
Middle Jurassic - Lower Cretaceous ammonites & aptychi
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