Radiocarbon dating of the historic grand baobab of Mahajanga, Madagascar

Patrut Adrian, Patrut Roxana Teodora, Rakosy Laszlo, Ratiu Ileana-Andreea, Danthu Pascal, Leong Pock Tsy Jean-Michel, Von Reden Karl F.. 2023. Radiocarbon dating of the historic grand baobab of Mahajanga, Madagascar. Studia Universitatis Babeş-Bolyai. Chemia, 68 (1) : 119-129.

https://doi.org/10.24193/subbchem.2023.1.09

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Résumé : The article reports the AMS (accelerator mass spectrometry) radiocarbon investigation of the historic Grand Baobab of Mahajanga. The largest African baobab of Madagascar exhibits a cluster structure, which consists of 6 fused ordinary stems and of 3 small binding stems. Two samples were collected from the largest stem and from a primary branch, out of which several tiny segments were extracted and dated by radiocarbon. The oldest dated sample segment had a radiocarbon date of 214 ± 17 BP, which corresponds to a calibrated age of 265 ± 25 calendar years. The dating results indicate that the Grand Baobab of Mahajanga is 275 ± 25 years old.

Mots-clés Agrovoc : Adansonia, Adansonia grandidieri, Adansonia digitata, dendrochronologie, bois

Mots-clés géographiques Agrovoc : Madagascar, France

Mots-clés libres : Adansonia digitata, Baobab, Age determination, Madagascar

Classification Agris : K01 - Foresterie - Considérations générales
F50 - Anatomie et morphologie des plantes

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

Agences de financement hors UE : Romanian Ministry of Research, Madagascar National Parks

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