Tanetium: Verskil tussen weergawes

Die basis van die etage word gedefinieer deur die begin van die magnetiese [[chronosone]] C26n en die bokant deur ’n negatiewe [[delta-waarde|δ]][[koolstof|¹³C]]-anomalie. Die [[globale stratotipepunt]] lê, nes dié van die Selandium, in die [[ontsluiting (geologie)|ontsluiting]] langs die strand van Itzerun in [[Spanje]].<ref>Arenillas ''et al.'' (2008); Bernaola ''et al.'' (2009)</ref>

 

{{Verwysings }}

 

* {{en}} Arenillas, I.; Molina, E.; Ortiz, S. & Schmitz, B.; '''2008''': ''Foraminiferal and δ¹³C isotopic event-stratigraphy across the Danian-Selandian transition at Zumaya (northern Spain): chronostratigraphic implications'', Terra Nova '''20''': pp 38-44.

* {{en}} Bernaola, G., Martín-Rubio, M. & Baceta, J.I., '''2009''': ''New high resolution calcareous nannofossil analysis across the Danian-Selandian transition at the Zumaia section: comparisons with South Tethys and Danish sections'', Geologica Acta '''7'''(1-2), pp 79-92.