Zanclean
Earliest age on the geologic time scale of the Pliocene era / From Wikipedia, the free encyclopedia
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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.
Quick Facts Chronology, Formerly part of ...
Zanclean | |||||||||||
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5.333 – 3.600 Ma | |||||||||||
Chronology | |||||||||||
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Formerly part of | Tertiary Period/System | ||||||||||
Etymology | |||||||||||
Name formality | Formal | ||||||||||
Usage information | |||||||||||
Celestial body | Earth | ||||||||||
Regional usage | Global (ICS) | ||||||||||
Time scale(s) used | ICS Time Scale | ||||||||||
Definition | |||||||||||
Chronological unit | Age | ||||||||||
Stratigraphic unit | Stage | ||||||||||
Time span formality | Formal | ||||||||||
Lower boundary definition | Base of the Thvera magnetic event (C3n.4n), which is only 96 ka (5 precession cycles) younger than the GSSP | ||||||||||
Lower boundary GSSP | Heraclea Minoa section, Heraclea Minoa, Cattolica Eraclea, Sicily, Italy 37.3917°N 13.2806°E / 37.3917; 13.2806 | ||||||||||
Lower GSSP ratified | 2000[4] | ||||||||||
Upper boundary definition | Base of Gauss/Gilbert (C2An/C2Ar) magnetic reversal | ||||||||||
Upper boundary GSSP | Punta Piccola Section, Porto Empedocle, Sicily, Italy 37.2889°N 13.4933°E / 37.2889; 13.4933 | ||||||||||
Upper GSSP ratified | January 1997[5] |
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The Zanclean can be correlated with regionally used stages, such as the Opoitian of New Zealand,[6] and the Tabianian or Dacian of Central Europe. It also corresponds to the late Hemphillian to mid-Blancan North American Land Mammal Ages. In California, the Zanclean roughly corresponds to the middle part of the Delmontian stage.[7]