The Montehermosan Land Mammal Age has been established by fission-track dating of the mammal deposit of Farola Monte Hermoso. The fossil bones were found in the lowest part of the outcrop, consisting of fluvially derived clay and silt. EDS analyses and fission-track age analyses were performed on two levels. The age determined for the lower volcanic ash level, 1.7 ± 0.4 Ma, is a minimum age for the Chapadmalalan mammal assemblage and a maximum age for the Uquian mammal assemblage in the Bonaerense area.
Farola Monte Hermoso: Fission-track Dating of Darwin's mammals deposit in Argentina
BONADONNA, FRANCESCOPAOLO;ZANCHETTA, GIOVANNI
1996-01-01
Abstract
The Montehermosan Land Mammal Age has been established by fission-track dating of the mammal deposit of Farola Monte Hermoso. The fossil bones were found in the lowest part of the outcrop, consisting of fluvially derived clay and silt. EDS analyses and fission-track age analyses were performed on two levels. The age determined for the lower volcanic ash level, 1.7 ± 0.4 Ma, is a minimum age for the Chapadmalalan mammal assemblage and a maximum age for the Uquian mammal assemblage in the Bonaerense area.File in questo prodotto:
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