Pampean loess chronology, physical, chemical, and provenance characterization

Coppo, Renata; ORCID: 0000-0003-3968-1117
Cosentino, Nicolás J; ORCID: 0000-0001-9023-2726
Torre, Gabriela; ORCID: 0000-0002-1985-1775
del Rio, Ian; ORCID: 0000-0002-4782-5443
Sawakuchi, André; ORCID: 0000-0001-5016-2428
Berman, Ana L; ORCID: 0000-0003-2068-1440
Koester, Edinei; ORCID: 0000-0002-4424-4782
Delmonte, Barbara; ORCID: 0000-0002-9074-2061
Gaiero, Deigo M; ORCID: 0000-0003-1029-2265
The present dataset includes measurements of feldspar luminescence dating using the protocol of post-infrared stimulated luminescence signal measured at 290ºC, grain size distribution determinations using laser-diffraction, organic matter and calcium carbonate contents measured through loss on ignition, and isotopic (Nd and Sr) analyses using a Thermal Ionization Multicollector Mass Spectrometer on three loess sections (Lozada, 31.65°S; 64.13°W; Tortugas, 32.72°S; 61.80°W; and Gorina, 34.90°S; 58.02°W) across the Pampean Plain. Bulk densities and mass accumulation rate estimations for the three loess sections are included in this dataset. Additionally, a compilation of potential source areas of dust to the East Antarctic Plateau, and a compilation of paleo precipitation proxy records of southern South America are presented. Finally, the results from two isotope unmixing models analyzing the dust contributions of the potential source areas to the Pampean loess and the East Antarctic Plateau are also included in the dataset. The purpose of this dataset is to compare the provenance and accumulation rates of dust deposited during the Last Glacial Maximum at different sites: the Pampean loess in terrestrial environments, and long-range dust recovered at the East Antarctic Plateau.
How to cite this dataset:
Coppo, R., Cosentino, N. J., Torre, G., del Rio, I., Sawakuchi, A., Berman, A. L., Koester, E., Delmonte, B., Gaiero, D. M., 2022. Pampean loess chronology, physical, chemical, and provenance characterization, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA). Accessed 2024-05-21.
DOI Creation Date:
Creative Commons Attribution 4.0 International [CC-BY-4.0]
Funding source(s):
Agencia Nacional de Promoción Científica y Tecnológica: PICT-2017-2705
ANID-Fondo Nacional de Desarrollo Científico y Tecnológico: POSTDOCTORADO2020-3200085
International Association of Sedimentologists
Conselho Nacional de Desenvolvimento Científico e Tecnológico: CNPq, grant 307179/2021-4
Coverage Scope: Regional (Continents, Oceans)
Geographic Location: Pampean loess, southern South America, East Antarctic Plateau
User Contributed Keyword(s):
provenance, dust, loess, luminescence dating, radiogenic isotopes, unmixing model
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