Costa, Mirian Cristina Oliveira da; Rosario, Gabriela Oliveira; Venancio, Igor Martins; Silva-Filho, Emmanoel Vieira: Age determination of microbial carbonates deposited during the Holocene in the South Atlantic [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.979398 (dataset in review)
Abstract:
The data refer to the geochemical and isotopic characterization of microbial carbonate in the shallow platform of the South Atlantic Ocean, Espírito Santo - Brazil. The determination of 14C activity was performed in Accelerator Mass Spectrometry (AMS) 14C dating at the Poznań Radiocarbon Laboratory. The determination of 14C activity was performed on 06 samples in Accelerator Mass Spectrometry (AMS) 14C dating at the Poznań Radiocarbon Laboratory (Linick et al., 1989). Background corrections were applied based on measurements of 14C-free calcite. Radiocarbon ages were calculated using the conventional radiocarbon age method (Stuiver and Polach, 1977) and calibrated using the CALIB REV8.20 software (Stuiver and Reimer, 1993). Calibration curves from Cabo Frio (RJ) and Guarapari (ES) were employed, with Delta R values -40.0 ± 17 and 29 ± 53 (Heaton et al., 2020; Alves et al., 2021). All dated samples were assigned a standard deviation of ±30 to ±35 years (2σ).
Funding:
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), grant/award no. E-26/ 210.745/2019 - 250464: Carlos Chagas Filho Foundation for Research Support of the State of Rio de Janeiro
Ministério da Educação, Brazil, grant/award no. Finance Code 001: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brazil (CAPES
Coverage:
Latitude: -20.834472 * Longitude: -40.621094
Date/Time Start: 2023-03-07T09:36:00 * Date/Time End: 2023-03-07T11:15:00
Minimum Elevation: -0.9 m * Maximum Elevation: 0.1 m
Event(s):
AN0201B1 * Latitude: -20.834472 * Longitude: -40.621094 * Date/Time: 2023-03-07T09:36:00 * Elevation: 0.0 m * Location: Anchieta beach, Brazil * Method/Device: Geological sample (GEOS) * Comment: carbonate rock
Comment:
The study was carried out between 2021 and 2023 on the beach of Castelhanos in a carbonate bank to analyze the depositional dynamics throughout the Holocene. The occurrence of microbial carbonates in the open marine environment is uncommon globally, configuring an excellent proxy for the reconstitution of relative variations in sea level and paleoclimate.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Costa, Mirian Cristina Oliveira da | |||
| 2 | Latitude of event | Latitude | Costa, Mirian Cristina Oliveira da | |||
| 3 | Longitude of event | Longitude | Costa, Mirian Cristina Oliveira da | |||
| 4 | Elevation of event | Elevation | m | Costa, Mirian Cristina Oliveira da | ||
| 5 | Age, dated material | Dated material | Costa, Mirian Cristina Oliveira da | |||
| 6 | Sample mass | Samp m | g | Costa, Mirian Cristina Oliveira da | bulk sample volume | |
| 7 | Age, dated | Age dated | ka | Costa, Mirian Cristina Oliveira da | Age, 14C calibrated, CALIB (Stuiver & Polach, 1977) | |
| 8 | Age, dated, standard deviation | Age dated std dev | ± | Costa, Mirian Cristina Oliveira da | ||
| 9 | Date/time analysis, experiment | Date/time analysis exp | Costa, Mirian Cristina Oliveira da | |||
| 10 | Laboratory code/label | Lab label | Costa, Mirian Cristina Oliveira da | |||
| 11 | Laboratory | Lab | Costa, Mirian Cristina Oliveira da | |||
| 12 | Preparations | Preparations | Costa, Mirian Cristina Oliveira da |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
48 data points