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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Shell mounds as environmental proxies on the southern coast of Brazil

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Autor(es):
Villagran, Ximena S. [1] ; Giannini, Paulo C. F. [2]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Univ Tubingen, D-72072 Tubingen - Germany
[2] Univ Sao Paulo, BR-05508 Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: HOLOCENE; v. 24, n. 8, p. 1009-1016, AUG 2014.
Citações Web of Science: 9
Resumo

Despite the multiple constraints of using shell mounds for building relative-sea-level (RSL) curves, one of the premises behind this use is still valid in modern archaeological research. This refers to the sites being continuously built near bodies of water rich in fish species and mollusk beds. Studies that combine the evolution of settlement patterns with the geological evolution of coastal areas in Brazil reach analogous results: the distribution of shell mounds in time and space follows the landscape transformations induced by RSL variations through the Holocene. Although shell mounds are not precise indicators of RSL, they provide evidences of the paleo-geographical changes during the Holocene, of which RSL is one of the many control variables. By collecting and transporting mollusks to the shell mounds, humans inevitably carry sediments from the substrate where mollusks live, for example, the beaches and lagoons near the sites. In this work, the geoarchaeological study of three shell mounds located in the southern coast of Santa Catarina State, combined with mollusk taxa identification, show the direct association of shell mound content with the changing landscape. The predominance of Ostrea sp. versus Anomalocardia brasiliana, the presence of colluvial versus lagoonal sediments, and the occurrence of echinoid spines versus muddy aggregates with diatoms, gastropods, and glauconitic clay characterize the distinction between sites built before and after the maximum Holocene transgression, respectively. This attests the potential of geoarchaeological analyses in shell mounds as a complementary proxy for paleo-environmental reconstructions. (AU)

Processo FAPESP: 08/51264-0 - Micromorfologia de sítios concheiros da América do Sul: arqueoestratigrafia e processos de formação de sambaquis (Santa Catarina, Brasil) e concheros (Tierra del Fuego, Argentina)
Beneficiário:Ximena Suarez Villagran
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 04/11038-0 - Sambaquis e paisagem: modelando a inter-relação entre processos formativos culturais e naturais no litoral sul de Santa Catarina
Beneficiário:Paulo Antônio Dantas de Blasis
Linha de fomento: Auxílio à Pesquisa - Temático