A 12,000 yr δ13C and δ15N isotopic record from Amboromena, Andringitra Massif, in Madagascar
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TitleA 12,000 yr δ13C and δ15N isotopic record from Amboromena, Andringitra Massif, in Madagascar
Alternative Title(s)Registro isotópico de δ13 C y δ15 N de 12.000 años de antigüedad de Amboromena (Macizo de Andringitra, Madagascar)
Cadernos do Laboratorio Xeolóxico de Laxe, 1998, 23: 251-261 ISSN: 00213-4497
[Abstract] Profiles of percent carbon, nitrogen and phosphorus, carbon/nitrogen (C/N) ratios, percent organic matter and carbonates, and stable carbon (δ13C) and nitrogen (δ15N) from a 176 cm core were used to reconstruct environments of deposition in the Amboromena basin (Madagascar)during last 12,000 yr BP. From these profiles three distinctively different stages in the basin evolution were apparent, which could have been result from the response to changes in the climatic conditions. Similar changes has been observed in other works about climate evolution in Madagascar and the African Tropics during the Late Quaternary.