Chattian

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Late Oligocene
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Chattian
27.82 – 23.03 Ma
Chronology

The Chattian is, in the

Epoch/Series. It spans the time between 27.82 and 23.03 Ma. The Chattian is preceded by the Rupelian and is followed by the Aquitanian (the lowest stage of the Miocene).[5]

Stratigraphic definition

The Chattian was introduced by Austrian palaeontologist Theodor Fuchs in 1894.[6] Fuchs named the stage after the Chatti, a Germanic tribe.[7] The original type locality was near the German city of Kassel.

The base of the Chattian is at the

GSSP
for the Chattian Stage was ratified in October of 2016.

The top of the Chattian Stage (which is the base of the Aquitanian Stage, Miocene Series and

magnetic
C6Cn.2n.

The Chattian is coeval with regionally used stages or zones such as the upper Avernian

mammal zone of Asia; the upper Kiscellian and lower Egerian Paratethys stages of Central and eastern Europe; the upper Janjukian and lower Longfordian Australian regional stages; the Otaian, Waitakian, and Duntroonian stages of the New Zealand geologic time scale
; and part of the Zemorrian Californian stage and Chickasawhayan regional stage of the eastern US.

Volcanic event

During the Chattian the largest known single-event

VEI of 8.[9] It has been dated to 27.51 Ma ago.[10]

References

  1. .
  2. ^ "International Chronostratigraphic Chart" (PDF). International Commission on Stratigraphy.
  3. .
  4. .
  5. ^ "International Commission on Stratigraphy 2017".
  6. ^ Berry, Edward W. "The Mayence Basin, a Chapter of Geologic History", The Scientific Monthly, Vol. 16, No. 2, February 1923. pp. 114. Retrieved March 18, 2020.
  7. ^ Alroy, John. "Mammal Paleogene zones". p. The Paleobiology Database. Retrieved 15 July 2009.
  8. ^ Mason et al. (2004)
  9. ^ Lanphere & Baadsgaard (2001)

Literature

  • Fuchs, T.; 1894: Tertiaerfossilien aus den kohlenführenden Miocaenablagerungen der Umgebung von Krapina und Radaboj und über die Stellung der sogenannten "Aquitanischen Stufe", Königlich- Ungarische Geologische Anstalt, Mittheilungen und Jahrbuch 10, p. 163-175. (in German)
  • Gradstein, F.M.; Ogg, J.G. & Smith, A.G.; 2004: A Geologic Time Scale 2004, Cambridge University Press.
  • Lanphere, M.A. & Baadsgaard, H.; 2001: Precise K–Ar, 40Ar/39Ar, Rb–Sr and U/Pb mineral ages from the 27.5 Ma Fish Canyon Tuff reference standard, Chemical Geology 175(3–4), pp 653–671.
  • Mason, B.G.; Pyle, D.M. & Oppenheimer, C.; 2004: The size and frequency of the largest explosive eruptions on Earth, Bulletin of Volcanology 66(8), pp 735–748.

External links