The age of and associated sediments in the Rising Star Cave, South Africa.

Citation data:

eLife, ISSN: 2050-084X, Vol: 6, Page: 1-59

Publication Year:
2017
Usage 103
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Repository URL:
https://epubs.scu.edu.au/geoscience_pubs/474; https://ro.uow.edu.au/smhpapers/4695; https://works.bepress.com/renaud_joannes-boyau/42; https://epubs.scu.edu.au/geoscience_pubs/501
PMID:
28483040
DOI:
10.7554/elife.24231; 10.7554/elife.24231.026; 10.7554/elife.24231.023; 10.7554/elife.24231.019; 10.7554/elife.24231.010; 10.7554/elife.24231.020; 10.7554/elife.24231.003; 10.7554/elife.24231.007; 10.7554/elife.24231.013; 10.7554/elife.24231.014; 10.7554/elife.24231.006; 10.7554/elife.24231.022; 10.7554/elife.24231.015; 10.7554/elife.24231.004; 10.7554/elife.24231.011; 10.7554/elife.24231.012; 10.7554/elife.24231.005; 10.7554/elife.24231.027; 10.7554/elife.24231.021; 10.7554/elife.24231.001; 10.7554/elife.24231.028; 10.7554/elife.24231.016; 10.7554/elife.24231.024; 10.7554/elife.24231.008; 10.7554/elife.24231.025; 10.7554/elife.24231.009; 10.7554/elife.24231.017; 10.7554/elife.24231.018; 10.7554/elife.24231.002
Author(s):
Dirks, Paul Hgm; Roberts, Eric M; Hilbert-Wolf, Hannah; Kramers, Jan D; Hawks, John; Dosseto, Anthony; Duval, Mathieu; Elliott, Marina; Evans, Mary; Grün, Rainer; Hellstrom, John; Herries, Andy Ir; Joannes-Boyau, Renaud; Makhubela, Tebogo V; Placzek, Christa J; Robbins, Jessie; Spandler, Carl; Wiersma, Jelle; Woodhead, Jon; Berger, Lee R Show More Hide
Publisher(s):
eLife Sciences Organisation, Ltd.; eLife Sciences Publications, Ltd
Tags:
Neuroscience; Biochemistry, Genetics and Molecular Biology; Immunology and Microbiology; Medicine and Health Sciences; Social and Behavioral Sciences; Earth Sciences; 040200, 210100
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article description
New ages for flowstone, sediments and fossil bones from the Dinaledi Chamber are presented. We combined optically stimulated luminescence dating of sediments with U-Th and palaeomagnetic analyses of flowstones to establish that all sediments containing fossils can be allocated to a single stratigraphic entity (sub-unit 3b), interpreted to be deposited between 236 ka and 414 ka. This result has been confirmed independently by dating three teeth with combined U-series and electron spin resonance (US-ESR) dating. Two dating scenarios for the fossils were tested by varying the assumed levels of Rn loss in the encasing sediments: a maximum age scenario provides an average age for the two least altered fossil teeth of 253 +82/-70 ka, whilst a minimum age scenario yields an average age of 200 +70/-61 ka. We consider the maximum age scenario to more closely reflect conditions in the cave, and therefore, the true age of the fossils. By combining the US-ESR maximum age estimate obtained from the teeth, with the U-Th age for the oldest flowstone overlying fossils, we have constrained the depositional age of to a period between 236 ka and 335 ka. These age results demonstrate that a morphologically primitive hominin, survived into the later parts of the Pleistocene in Africa, and indicate a much younger age for the fossils than have previously been hypothesized based on their morphology.