Foraminiferal and bulk sediment geochemistry, faunal indexes, and quartz luminescence data from core CDH-89 (western equatorial Atlantic) for the penultimate deglaciation

doi:doi:10.1594/PANGAEA.967528

Foraminiferal and bulk sediment geochemistry, faunal indexes, and quartz luminescence data from core CDH-89 (western equatorial Atlantic) for the penultimate deglaciation

We apply a multi-proxy approach to marine sediment core CDH-89 to assess paleoclimate changes in Northeastern Brazil (NEB) and in the western equatorial Atlantic (WEA) during the penultimate deglaciation. WEA bottom water ventilation was reconstructed through two independent proxies: bulk sediment manganese (Mn) content and benthic foraminifera Cibicidoides wuellerstorfi stable carbon isotopic composition. We derived WEA sea surface temperature based on planktonic foraminifera Globigerinoides ruber (white) sensu stricto Mg/Ca. Finally, we reconstructed NEB hydroclimate using three further independent proxies: ln(Ti/Ca) in bulk sediment, mass accumulation rate and quartz luminescence sensitivity [calculated through the intensities of the first second of the optically stimulated luminescence (OSL) decay curve and the 110°C thermoluminescence (TL) peak]. Additionally, we applied surface primary productivity and fragmentation indices in planktonic foraminifera assemblage.

BibTex:

@dataset{de_Carvalho_Campos_Marília_and_Chiessi_Cristiano_Mazur_and_Nascimento_Rodrigo_Azevedo_and_Kraft_Laura_and_Radionovskaya_Svetlana_and_Skinner_Luke_C_and_Dias_Bruna_Borba_and_Pinho_Tainã_Marcos_Lima_and_Kochhann_Marcus_and_Crivellari_Stefano_and_Mineli_Thays_D_and_Mendes_Vinícius_Ribau_and_Baker_Paul_A_and_Cleverson_Silva_G_and_Sawakuchi_André_Oliveira_2024,
    abstract = {We apply a multi-proxy approach to marine sediment core CDH-89 to assess paleoclimate changes in Northeastern Brazil (NEB) and in the western equatorial Atlantic (WEA) during the penultimate deglaciation. WEA bottom water ventilation was reconstructed through two independent proxies: bulk sediment manganese (Mn) content and benthic foraminifera Cibicidoides wuellerstorfi stable carbon isotopic composition. We derived WEA sea surface temperature based on planktonic foraminifera Globigerinoides ruber (white) sensu stricto Mg/Ca. Finally, we reconstructed NEB hydroclimate using three further independent proxies: ln(Ti/Ca) in bulk sediment, mass accumulation rate and quartz luminescence sensitivity [calculated through the intensities of the first second of the optically stimulated luminescence (OSL) decay curve and the 110°C thermoluminescence (TL) peak]. Additionally, we applied surface primary productivity and fragmentation indices in planktonic foraminifera assemblage.},
    author = {de Carvalho Campos, Marília and Chiessi, Cristiano Mazur and Nascimento, Rodrigo Azevedo and Kraft, Laura and Radionovskaya, Svetlana and Skinner, Luke C and Dias, Bruna Borba and Pinho, Tainã Marcos Lima and Kochhann, Marcus and Crivellari, Stefano and Mineli, Thays D and Mendes, Vinícius Ribau and Baker, Paul A and Cleverson, Silva G and Sawakuchi, André Oliveira},
    doi = {10.1594/PANGAEA.967528},
    institution = {PANGAEA (Land Surface)},
    keyword = {'Bulk Sediment', 'Foraminifera', 'Sea surface temperature', 'bottom ventilation', 'northeastern Brazil', 'penultimate deglaciation', 'precipitation', 'western equatorial Atlantic'},
    month = {nov},
    title = {Foraminiferal and bulk sediment geochemistry, faunal indexes, and quartz luminescence data from core CDH-89 (western equatorial Atlantic) for the penultimate deglaciation},
    url = {https://service.tib.eu/ldmservice/vdataset/png-doi-10-1594-pangaea-967528},
    year = {2024}
}