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PANGAEA.
Data Publisher for Earth & Environmental Science
Abstract:
We present sortable silt (SS) mean values from a mid-depth core in the western South Atlantic to assess changes in deep ocean circulation during the penultimate and last glacial terminations, the Last Interglacial (LIG), and the Holocene. SS values were analyzed in samples from the intervals of the last two glacial terminations and interglacials. Particle size measurements were conducted using a CILAS 1094 particle analyzer via laser diffraction on carbonate- and organic matter-free samples. SS was determined as the mean of the size range 10-63 μm. The average standard deviation between replicate measurements is ±0.15 μm.
Keyword(s):
deep ocean circulation; Foraminifera; glacial terminations; grain-size; Interglacials; western South Atlantic
Supplement 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:
Brazilian Government (FAPERJ), grant/award no. 200.120/2023-281226
Brazilian Government (FAPERJ), grant/award no. SEI-260003/000677/2023
Coordenação de Aperfeicoamento de Pessoal de Nível Superior (CAPES), grant/award no. 8881.712022/2022-1
São Paulo Research Foundation (FAPESP), grant/award no. 2019/24349-9
São Paulo Research Foundation (FAPESP), grant/award no. 2019/25179-0
São Paulo Research Foundation (FAPESP), grant/award no. 2020/11452-3
São Paulo Research Foundation (FAPESP), grant/award no. 2022/01056-9
São Paulo Research Foundation (FAPESP), grant/award no. 2022/06452-0
São Paulo Research Foundation (FAPESP), grant/award no. 2022/09479-6
São Paulo Research Foundation (FAPESP), grant/award no. 2023/00355-5
Coverage:
Latitude: -24.920000 * Longitude: -42.510000
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 15.14 m
Event(s):
GL1090 (GL-1090) * Latitude: -24.920000 * Longitude: -42.510000 * Elevation: -2225.0 m * Location: western South Atlantic * Comment: collected by the Petrobras oil company
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmDias, Bruna BorbaGeocode
2AGEAgeka BPDias, Bruna BorbaGeocode
3Sortable-silt meanSSµmDias, Bruna BorbaGrain size, CILAS 1094 Laser Particle Analyser
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:
78 data points

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