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Paleoclimatology (thesaurus)

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Concept information

... > geologic time scale > geological age > Phanerozoic > Cenozoic > Neogene > Pliocene > Lower Pliocene > Zanclean

Terme préférentiel

Zanclean  

Définition

  • The Zanclean is the lowest stage or earliest age on the geologic time scale of the Pliocene. It spans the time between 5.332 ± 0.005 Ma (million years ago) and 3.6 ± 0.005 Ma. It is preceded by the Messinian Age of the Miocene Epoch, and followed by the Piacenzian Age. The base of the Zanclean lies with the top of magnetic chronozone Cr3 (about 100,000 years before the Thvera normal subchronozone C3n.4n). The base is also close to the extinction level of the calcareous nanoplankton species Triquetrorhabdulus rugosus (the base of biozone CN10b) and the first appearance of nanoplankton Ceratolithus acutus. The top of the Zanclean Stage (the base of the Piacenzian Stage) is at the base of magnetic chronozone C2An (the base of the Gauss chronozone and at the extinction of the planktonic forams Globorotalia margaritae and Pulleniatina primalis. (Adapted from: https://en.wikipedia.org/wiki/Zanclean)

Concept générique

Synonyme(s)

  • Zanclian

Traductions

URI

http://data.loterre.fr/ark:/67375/QX8-DBLTZZ3J-S

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