Dias, Bruna Borba; Chiessi, Cristiano Mazur; Piotrowski, Alexander M; Campos, Marília C; Jena, Partha S; Ballalai, João M; Nascimento, Rodrigo Azevedo; Santos, Thiago Pereira dos; Venancio, Igor Martins; Mashayek, Ali; Albuquerque, Ana Luiza Spadano: Authigenic neodymium records from sediment core GL1090 for the penultimate glacial termination and Last Interglacial [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971660 (dataset in review)
Abstract:
We present authigenic neodymium isotopes (ℇNd) values from a mid-depth core in the western South Atlantic to assess changes in deep ocean circulation during the penultimate glacial termination and the Last Interglacial (LIG). Authigenic ℇNd were analyzed on uncleaned mixed planktonic foraminifera from the intervals of the penultimate glacial termination and the LIG. These data were compared to the authigenic ℇNd dataset from the last glacial termination and the Holocene published by Howe et al. (2018, doi:10.1016/j.epsl.2018.03.006). The samples were dissolved, and rare earth elements (REE) were separated from other elements using Eichrom TRUspec™ resin. Neodymium was then extracted from the other REE using Eichrom Lnspec™ resin. Samples were analyzed using a Neptune Plus multi-collector mass spectrometer (MC-ICP-MS). The reported error corresponds to 2 standard deviations of reproducibility of the bracketing standards.
Keyword(s):
Related to:
Dias, Bruna Borba; Chiessi, Cristiano Mazur; Piotrowski, Alexander M; Campos, Marília C; Jena, Partha S; Ballalai, João M; Nascimento, Rodrigo Azevedo; Santos, Thiago Pereira dos; Venancio, Igor Martins; Mashayek, Ali; Albuquerque, Ana Luiza Spadano (in review): Penetration of northern-sourced waters in the South Atlantic during the Last Interglacial. Paleoceanography and Paleoclimatology
Funding:
Coordenação de Aperfeicoamento de Pessoal de Nível Superior (CAPES), grant/award no. 8881.712022/2022-1
Coverage:
Latitude: -24.920000 * Longitude: -42.510000
Minimum DEPTH, sediment/rock: 13.52 m * Maximum DEPTH, sediment/rock: 15.00 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Dias, Bruna Borba | Geocode | |
| 2 | AGE | Age | ka BP | Dias, Bruna Borba | Geocode | |
| 3 | ε-Neodymium, authigenic | ε-Nd auth | Dias, Bruna Borba | MC-ICP-MS ThermoFisher Neptune Plus | ||
| 4 | ε-Neodymium, authigenic, standard deviation | ε-Nd auth std dev | ± | Dias, Bruna Borba | MC-ICP-MS ThermoFisher Neptune Plus | 2sd |
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:
36 data points