Thermoluminescence (TL) and optically stimulated luminescence (OSL) sensitivities, and IRSL/OSL measurements for core GL-1248 (off Parnaíba River drainage basin, northern northeastern Brazil)

DOI

Marine sediment core GL-1248 was collected from the continental slope off northern northeastern Brazil by Petrobras oil company. Sediment samples (154 in total) were collected with 2 cm wide scoops at every 10 cm from the uppermost 16 m (covering the the last 113 thousand years) of the marine sediment core GL-1248. Samples were oven‐dried at 60°C, precisely weighted to 0.5 g and treated with H2O2 27% and HCl 10% to remove organic matter and calcium carbonate, respectively. The remaining content was diluted in alcohol and three aliquots per sample were mounted on stainless steel discs with four drops of the homogenized solution of alcohol and silt/clay sediments. GL-1248 luminescence measurements were performed on an automated Lexsyg Smart TL/OSL reader equipped with blue and infrared LEDs, Hoya U-340 filters for light detection in the ultraviolet band (270-390 nm) using a photomultiplier and beta radiation sources (90Sr/90Y) with doses rate of 0.116 Gy s-1 at the Luminescence and Gamma Spectrometry Laboratory of the Institute of Geosciences, University of São Paulo, Brazil. The sensitivity representative of the 110°C thermoluminesce (TL) peak of quartz considered the 80–120°C integration range from the TL curve. The 80-120°C TL sensitivity was calculated as a percentage of the total TL emission (0-250°C) and using the background TL curve. The mean of three measured aliquots represents the TL sensitivity of each sample. The OSL sensitivity was calculated by integrating the first second of light emission and the last ten seconds as background. GL-1248 TL sensitivity data were compared to previously published data obtained from marine sediment core GeoB16206-1 (https://doi.org/10.1594/PANGAEA.904357). Marine sediment core GeoB16206-1 was analyzed in a different luminescence reader (i.e. RisØ OSL/TL DA-20 reader) and using different regeneration dose. In order to avoid machine artifacts and the influence of dose size on sensitivity, we normalized the TL data output from both marine sediment cores and produced a composite record. Name of the Campaign: collected by the Petrobras oil company Event Label: GL1248 (GL-1248) Method: quarzt luminescence sensitivity Latitude: -0.920000 Longitude: -43.401667 Elevation: -2,264 m

Identifier
DOI https://doi.org/10.1594/PANGAEA.941421
Related Identifier https://doi.org/10.1038/s41598-022-14495-1
Related Identifier https://doi.org/10.1594/PANGAEA.904357
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.941421
Provenance
Creator Campos, Marília de Carvalho ORCID logo; Chiessi, Cristiano Mazur ORCID logo; Novello, Valdir Felipe ORCID logo; Crivellari, Stefano ORCID logo; Campos, José L P S ORCID logo; Albuquerque, Ana Luiza Spadano ORCID logo; Venancio, Igor Martins ORCID logo; Santos, Thiago ORCID logo; Melo, Dayane B ORCID logo; Cruz, Francisco William ORCID logo; Sawakuchi, André Oliveira ORCID logo; Mendes, Vinícius Ribau ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference Coordenação de Aperfeicoamento de Pessoal de Nível Superior https://doi.org/10.13039/501100002322 Crossref Funder ID 88881.313535/2019-01, 2567/2018/88881.310302/2018-01, 88881.512929/2020-01 CAPES grants 88881.313535/2019-01, 2567/2018/88881.310302/2018-01, 88881.512929/2020-01; National Council for Scientific and Technological Development https://doi.org/10.13039/501100003593 Crossref Funder ID 312458/2020-7, 302521/2017-8, 429767/2018-8, 406322/2018-0, 304727/2017-2 CNPq grants 312458/2020-7, 302521/2017-8, 429767/2018-8, 406322/2018-0, 304727/2017-2; Sao Paulo Research Foundation https://doi.org/10.13039/501100001807 Crossref Funder ID 2019/25179-0, 2018/15123-4, 2019/24349-9 FAPESP grants 2019/25179-0, 2018/15123-4, 2019/24349-9; Serrapilheira Institute https://doi.org/10.13039/501100013275 Crossref Funder ID Serra – R-2012-38252
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (-43.402W, -1.579S, -43.024E, -0.920N)