OSL and EPR dating of shells and sediments from Congonhas II sambaqui, Santa Catarina, Brazil

Nilo F. Cano; Jorge Sabino Ayala Arenas; Henry S. Javier-Ccallata; Shigueo Watanabe

doi:10.1016/j.radphyschem.2019.03.044

OSL and EPR dating of shells and sediments from Congonhas II sambaqui, Santa Catarina, Brazil

Nilo F. Cano, Jorge Sabino Ayala Arenas, Henry S. Javier-Ccallata, Shigueo Watanabe

Departamento Académico de Física

Resultado de la investigación: Contribución a una revista › Artículo › revisión exhaustiva

2 Citas (Scopus)

Resumen

There are about thousands of shell-mounds (sambaqui in Portuguese) along the Brazilian sea coast. They have been built by sea water and therefore geologists used sambaquis positions to indicate sea level in the past. In the state of Santa Catarina in southern Brazil Ca. 60 very large sambaquis are found. One of them near the town of Tubarão is called Congonhas II. In this work we carried out OSL and EPR dating of moluscus shells and sediments collected from Congonhas II from its base and from a point at higher position. For the samples from basal position of Congonhas II ages from 3850 ± 340 to 4040 ± 270 years and samples from higher position age of about 3300 ± 230 to 3400 ± 510 years have been obtained. These results agree with radiocarbon dates and geologically expected data relative to past sea level fluctuation.

Idioma original	Inglés
Número de artículo	108240
Publicación	Radiation Physics and Chemistry
Volumen	167
DOI	https://doi.org/10.1016/j.radphyschem.2019.03.044
Estado	Publicada - feb. 2020

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© 2019 Elsevier Ltd

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title = "OSL and EPR dating of shells and sediments from Congonhas II sambaqui, Santa Catarina, Brazil",

abstract = "There are about thousands of shell-mounds (sambaqui in Portuguese) along the Brazilian sea coast. They have been built by sea water and therefore geologists used sambaquis positions to indicate sea level in the past. In the state of Santa Catarina in southern Brazil Ca. 60 very large sambaquis are found. One of them near the town of Tubar{\~a}o is called Congonhas II. In this work we carried out OSL and EPR dating of moluscus shells and sediments collected from Congonhas II from its base and from a point at higher position. For the samples from basal position of Congonhas II ages from 3850 ± 340 to 4040 ± 270 years and samples from higher position age of about 3300 ± 230 to 3400 ± 510 years have been obtained. These results agree with radiocarbon dates and geologically expected data relative to past sea level fluctuation.",

keywords = "Congonhas II sambaqui, Dating, EPR, OSL",

author = "Cano, {Nilo F.} and {Ayala Arenas}, {Jorge Sabino} and Javier-Ccallata, {Henry S.} and Shigueo Watanabe",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = feb,

doi = "10.1016/j.radphyschem.2019.03.044",

language = "Ingl{\'e}s",

volume = "167",

journal = "Radiation Physics and Chemistry",

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T1 - OSL and EPR dating of shells and sediments from Congonhas II sambaqui, Santa Catarina, Brazil

AU - Cano, Nilo F.

AU - Ayala Arenas, Jorge Sabino

AU - Javier-Ccallata, Henry S.

AU - Watanabe, Shigueo

PY - 2020/2

Y1 - 2020/2

N2 - There are about thousands of shell-mounds (sambaqui in Portuguese) along the Brazilian sea coast. They have been built by sea water and therefore geologists used sambaquis positions to indicate sea level in the past. In the state of Santa Catarina in southern Brazil Ca. 60 very large sambaquis are found. One of them near the town of Tubarão is called Congonhas II. In this work we carried out OSL and EPR dating of moluscus shells and sediments collected from Congonhas II from its base and from a point at higher position. For the samples from basal position of Congonhas II ages from 3850 ± 340 to 4040 ± 270 years and samples from higher position age of about 3300 ± 230 to 3400 ± 510 years have been obtained. These results agree with radiocarbon dates and geologically expected data relative to past sea level fluctuation.

AB - There are about thousands of shell-mounds (sambaqui in Portuguese) along the Brazilian sea coast. They have been built by sea water and therefore geologists used sambaquis positions to indicate sea level in the past. In the state of Santa Catarina in southern Brazil Ca. 60 very large sambaquis are found. One of them near the town of Tubarão is called Congonhas II. In this work we carried out OSL and EPR dating of moluscus shells and sediments collected from Congonhas II from its base and from a point at higher position. For the samples from basal position of Congonhas II ages from 3850 ± 340 to 4040 ± 270 years and samples from higher position age of about 3300 ± 230 to 3400 ± 510 years have been obtained. These results agree with radiocarbon dates and geologically expected data relative to past sea level fluctuation.

KW - Congonhas II sambaqui

KW - Dating

KW - EPR

KW - OSL

UR - http://www.scopus.com/inward/record.url?scp=85075997043&partnerID=8YFLogxK

U2 - 10.1016/j.radphyschem.2019.03.044

DO - 10.1016/j.radphyschem.2019.03.044

M3 - Artículo

AN - SCOPUS:85075997043

VL - 167

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

SN - 0969-806X

M1 - 108240

ER -

OSL and EPR dating of shells and sediments from Congonhas II sambaqui, Santa Catarina, Brazil

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