The University of Arizona
Open Access Open Access  Restricted Access Subscription or Fee Access

The antiquity of the prehistoric settlement of the central-south Brazilian coast.

T A Lima, K D Macario, R M Anjos, P S Gomes, M M Coimbra, D Elmore


We discus here the prehistoric settlement of the central-south Brazilian coast, and, more specifically, 1 old radiocarbon date obtained for a coastal shellmound, as well as its implications concerning the chronology attributed to the settlement process. The accelerator mass spectrometry (AMS) technique was used to determine the (super 14) C age of charcoal from a shellmound on the southern coast of Rio de Janeiro. The resulting age was 7860+ or -80 BP, an unexpected result that reinforces 2 similar previously obtained dates for the same region. Brazilian archaeologists, however, have questioned those 2 dates, because they would predate by some 2000 yr the antiquity consensually accepted for the settlement of the central-south Brazilian littoral.


Ribeira Bay;Rio de Janeiro Brazil;Sambaqui do Algodao;shell mounds;lower Holocene;accelerator mass spectra;coastal environment;mass spectra;spectra;Brazil;South America;archaeological sites;Holocene;Cenozoic;charcoal;Quaternary;methods;C 14;carbon;isotopes;radioactive isotopes;shells;absolute age

Full Text: