AMOURINS SHELLMOUND: UNCOVERING BIODIVERSITY AND CHRONOLOGY THROUGH CHARCOAL ANALYSES
| Autor: | Kita Macario, Dayanne F. Amaral, Eduardo Q. Alves, Bruna B. Pereira, Natacha Ribeiro-Pinto, Rita Scheel-Ybert |
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| Rok vydání: | 2021 |
| Předmět: |
010506 paleontology
Archeology 060102 archaeology Biodiversity 06 humanities and the arts Vegetation 01 natural sciences law.invention Geography law visual_art visual_art.visual_art_medium General Earth and Planetary Sciences 0601 history and archaeology Physical geography Radiocarbon dating Mangrove Charcoal Bay 0105 earth and related environmental sciences Anthracology Chronology |
| Zdroj: | Radiocarbon. 63:1085-1102 |
| ISSN: | 1945-5755 0033-8222 |
| Popis: | In paleoenvironmental research, several proxies are used to reconstruct climate and vegetation. The establishment of a chronological framework allows for the association of different proxies and correlation of events happening in different geographic areas. Cultural deposits, such as the shellmounds found along the coast of Brazil, play an important role in paleoenvironmental interpretations. Here, we have employed anthracological analysis in charcoal fragments from the Amourins shellmound, located at the margins of the Guanabara Bay, Rio de Janeiro. This allowed for the taxonomic identification and selection of short-lived trees and specific parts of plants for accurate radiocarbon dating. We recorded genera and families typical of the Atlantic Forest, restinga forest, open restinga and mangrove. The 14C ages of charred nuts from different occupational layers range from 3807 ± 35 to 3503 ± 70 BP and a sequential chronological model was built, relating the predominance of mangrove vegetation to the period between 4130–3960 cal BP. |
| Databáze: | OpenAIRE |
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