Geochemical data from core SEAL-20230070

doi:doi:10.1594/PANGAEA.973134

Geochemical data from core SEAL-20230070

The dataset was obtained from the SEAL-20230070 core, located near the mouth of the São Francisco River in northeastern Brazil. The obtained proxies described the hydrological conditions in the river drainage area over the last ~20,000 years as a measure of fluctuations in monsoon intensity and changes in the intertropical convergence zone in the South Atlantic. Elemental ratios derived from sedimentary XRF reflect high influxes of terrigenous sediments during the Heinrich Stadial (H1) and Younger Dryas (YD) events; paleoproductivity proxies show that the abundance of more oligotrophic planktonic foraminifera changed during the H1 and YD events. TEX86 data and the BIT index, respectively, indicate changes in sea surface temperature and the input of organic matter from the continent to the ocean. The age model was constructed using five radiocarbon dates measured on planktonic foraminifera.

BibTex:

@dataset{Martins_Alisson_Klayton_and_Kochhann_Karlos_Guilherme_Diemer_and_Chiessi_Cristiano_Mazur_and_Bauersachs_Thorsten_and_Zardin_Tamires_N_and_de_Carvalho_Campos_Marília_and_Krahl_Guilherme_and_de_Souza_Laís_V_and_Crivellari_Stefano_and_Bahr_André_and_Kuhnert_Henning_and_Schwark_Lorenz_and_Fauth_Gerson_2024,
    abstract = {The dataset was obtained from the SEAL-20230070 core, located near the mouth of the São Francisco River in northeastern Brazil. The obtained proxies described the hydrological conditions in the river drainage area over the last ~20,000 years as a measure of fluctuations in monsoon intensity and changes in the intertropical convergence zone in the South Atlantic. Elemental ratios derived from sedimentary XRF reflect high influxes of terrigenous sediments during the Heinrich Stadial (H1) and Younger Dryas (YD) events; paleoproductivity proxies show that the abundance of more oligotrophic planktonic foraminifera changed during the H1 and YD events. TEX86 data and the BIT index, respectively, indicate changes in sea surface temperature and the input of organic matter from the continent to the ocean. The age model was constructed using five radiocarbon dates measured on planktonic foraminifera.},
    author = {Martins, Alisson Klayton and Kochhann, Karlos Guilherme Diemer and Chiessi, Cristiano Mazur and Bauersachs, Thorsten and Zardin, Tamires N and de Carvalho Campos, Marília and Krahl, Guilherme and de Souza, Laís V and Crivellari, Stefano and Bahr, André and Kuhnert, Henning and Schwark, Lorenz and Fauth, Gerson},
    doi = {10.1594/PANGAEA.973134},
    institution = {PANGAEA (Land Surface)},
    keyword = {'Heinrich Stadials', 'Late Pleistocene', 'Quaternary age model', 'TEX86', 'Younger Dryas', 'paleoproductivity'},
    title = {Geochemical data from core SEAL-20230070},
    url = {https://service.tib.eu/ldmservice/vdataset/png-doi-10-1594-pangaea-973134},
    year = {2024}
}