| Title: |
Characterizing and dating authigenic phosphates from the sedimentary infill of Atapuerca archaeo-paleoanthropological cave sites (Spain) |
| Authors: |
Campaña, Isidoro; Duval, Mathieu; Álvaro-Gallo, Ana; Guilarte Moreno, Verónica; Shao, Qingfeng; Ortega, Ana Isabel; Arnold, Lee J.; Demuro, Martina; Bermúdez de Castro, José María; Carbonell, Eudald |
| Publisher Information: |
Elsevier |
| Publication Year: |
2025 |
| Collection: |
DIGIBUG: Repositorio Institucional de la Universidad de Granada |
| Description: |
Aspects of this study have been supported by an Australian Research Council Future Fellowship Grant (FT150100215) and a Ramón y Cajal fellowship (RYC2018-025221-I) granted to M. Duval. The latter is funded by MCIN/AEI/10.13039/501100011033 and by ‘‘ESF Investing in your future”. This work is also part of Grants PID2021-123092NB-C21/-C22 and PID2021-122355NB-C33 MCIN/AEI/ 10.13039/501100011033/’ERDF A way of making Europe’. I. Campaña is the beneficiary recipient of a post-doctoral grant fellowship from Junta de Andalucía. The U-series analysis of Qingfeng Shao was supported by National Key R&D Program of China (2023YFF0905700). ; We present the results of a characterization and dating study of eight authigenic apatite samples collected from various stratigraphic units of three cave sites across the Atapuerca complex, namely Gran Dolina, Galería Complex and Sima del Elefante. Characterization analyses using X-ray diffraction, X-ray Fluorescence and Electron Spin Resonance (ESR) spectroscopy have been used to determine the nature and composition of the samples: seven of them are mostly made of hydroxyapatite, while one is composed of crandallite, and all show variable amounts of contamination by calcite and/or sediment. The timing of authigenic apatite formation, which results from the weathering of the limestone in a karstic environment, has been tentatively constrained through a combination of bulk and spatially resolved analyses using ESR and U-series methods. The dating results obtained enable the identification of various formation events during the Middle and Late Pleistocene at each site, around 170-180 ka and 110-120 ka in Gran Dolina, ∼250 ka and ∼40 ka in Galería Complex, and potentially ∼360 ka in Sima del Elefante. Importantly, all these ages are significantly younger than the depositional age of the host sediment, thus confirming the post-depositional nature of authigenic apatite. Additionally, the absence of age consistency across sites suggests that they have all experienced independent ... |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
Published version: Campaña, Isidoro et al. Quaternary Geochronology Available online 13 May 2025, 101674. https://doi.org/10.1016/j.quageo.2025.101674; https://hdl.handle.net/10481/104363 |
| DOI: |
10.1016/j.quageo.2025.101674 |
| Availability: |
https://hdl.handle.net/10481/104363; https://doi.org/10.1016/j.quageo.2025.101674 |
| Rights: |
Attribution-NonCommercial-NoDerivatives 4.0 Internacional ; http://creativecommons.org/licenses/by-nc-nd/4.0/ ; open access |
| Accession Number: |
edsbas.410EF4A0 |
| Database: |
BASE |