Citation:

PANGAEA.979556 (dataset in review)

Name: Geochemical analyses of microbial carbonates deposited during the Holocene in the South Atlantic
License: https://creativecommons.org/licenses/by/4.0/
Keywords: carbonate banks; Holocene climate; microbial; South Altantic

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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. Geochemical and isotopic analyses were conducted at the LAMIR Institute of the Universidade Federal do Paraná (LAMIR Institute-UFPR). Major element concentrations were determined in three pulverized samples using X-ray fluorescence (XRF) spectrometry on a Panalytical Axios Max instrument with a 4 kV Rhodium tube. Samples were fused with lithium tetraborate/lithium metaborate and analyzed as fused beads. Results were reported as oxide weight percentages (e.g., SiO₂, CaO, MgO).

Keyword(s):

carbonate banks; Holocene climate; microbial; South Altantic

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. 465.290/2014-0 : INCT-TMCOcean

Ministério da Educação, Brazil, grant/award no. 573.601/2008-9 : INCT-TMCOcean

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: -0.8 m * Maximum Elevation: 0.0 m

Event(s):

AN0201B * 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

AN0201C * Latitude: -20.834472 * Longitude: -40.621094 * Date/Time: 2023-03-07T10:28:00 * Elevation: -0.4 m * Location: Anchieta beach, Brazil * Method/Device: Geological sample (GEOS) * Comment: carbonate rock

AN0201D * Latitude: -20.834472 * Longitude: -40.621094 * Date/Time: 2023-03-07T11:15:00 * Elevation: -0.8 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	Material	Material		Costa, Mirian Cristina Oliveira da
6	Sample mass	Samp m	g	Costa, Mirian Cristina Oliveira da		bulk sample volume
7	Calcium carbonate	CaCO3	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
8	Magnesium oxide	MgO	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
9	Silicon dioxide	SiO2	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
10	Aluminium oxide	Al2O3	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
11	Iron oxide, Fe2O3	Fe2O3	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios	Iron(III) oxide
12	Sodium oxide	Na2O	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
13	Potassium oxide	K2O	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
14	Strontium oxide	SrO	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
15	Titanium dioxide	TiO2	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
16	Manganese oxide	MnO	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios	Manganese(II) oxide
17	Phosphorus pentoxide	P2O5	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
18	Loss on ignition	LOI	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
19	Sum	Sum	%	Costa, Mirian Cristina Oliveira da	X-ray fluorescence spectrometer (XRF), PANalytical Axios
20	Date/time analysis, experiment	Date/time analysis exp		Costa, Mirian Cristina Oliveira da
21	Laboratory code/label	Lab label		Costa, Mirian Cristina Oliveira da
22	Laboratory	Lab		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:

54 data points

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Datasets with similar metadata

Costa, MCO; Rosario, GO; Venancio, IM et al. (in review): Age determination of microbial carbonates deposited during the Holocene in the South Atlantic. https://doi.pangaea.de/10.1594/PANGAEA.979398
Costa, MCO; Rosario, GO; Venancio, IM et al. (in review): δ13C and δ18O isotopic analyses of microbial carbonates deposited during the Holocene in the South Atlantic. https://doi.pangaea.de/10.1594/PANGAEA.979497
Costa, MCO; Silva-Filho, EV (2023): Geochemical study of beachrocks and hybrid carbonates deposited during the Holocene in southeastern Brazil. https://doi.org/10.1594/PANGAEA.954873