A 36 ka environmental record in the southern tropics : Lake Tritrivakely (Madgascar) - Archive ouverte HAL Access content directly
Journal Articles Comptes rendus de l’Académie des sciences. Série IIa, Sciences de la terre et des planètes Year : 1994

A 36 ka environmental record in the southern tropics : Lake Tritrivakely (Madgascar)

Un enregistrement de l'environnement depuis 36 ka en zone tropicale sud : le lac Tritrivakely (Madagascar)

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Luc Ferry
  • Function : Author
Elisabeth Gibert
  • Function : Author
Catherine Kissel
Jean-Claude Miskovsky
  • Function : Author
Bruno Ratsimbazafy
  • Function : Author
Flavien Ranaivo
  • Function : Author
Laurent Robinson
  • Function : Author
Piotr Tucholka
Jean-Luc Saos
  • Function : Author
Maurice Taieb
  • Function : Author
  • PersonId : 973594
Elise van Campo
  • Function : Author
David Williamson
  • Function : Author

Abstract

The upper 13 m of a 40 m-long sedimentary profile core taken in a crater lake on the Malagasy Plateau reveals 36,000 yrs of hydroclimatic evolution. A shallow lake occupies the core site from ≃35 to ≃19 ka BP under climatic conditions cooler than today. The water table is very low and biological productivity extremely reduced during the Last Glacial Maximum. A large warming was initiated at ≃14.5 ka BP. The modern bog establishes about 4 ka ago
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hal-00122534 , version 1 (03-01-2007)

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Françoise Gasse, Elsa Cortijo, Jean-Robert Disnar, Luc Ferry, Elisabeth Gibert, et al.. A 36 ka environmental record in the southern tropics : Lake Tritrivakely (Madgascar). Comptes rendus de l’Académie des sciences. Série IIa, Sciences de la terre et des planètes, 1994, 318, pp.1513-1519. ⟨hal-00122534⟩
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