Regular ArticlesThe Sima de los Huesos Hominids Date to Beyond U/Th Equilibrium (>350 kyr) and Perhaps to 400–500 kyr: New Radiometric Dates
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ESR chronology of the fluvial sequence of Cueva del Silo (Sierra de Atapuerca, Spain)
2022, Quaternary GeochronologyExtended-range luminescence chronologies for the Middle Pleistocene units at the Sima del Elefante archaeological site (Sierra de Atapuerca, Burgos, Spain)
2022, Quaternary GeochronologyCitation Excerpt :The U-series dating results for sample GB17-3 are shown in Table 2. The calcite fragment has a 238U content of 87.1 ± 0.2 ppb, which is similar to values obtained for other speleothem samples from the Cueva Mayor–Cueva del Silo karst system (e.g., Bischoff et al., 2003; Martínez-Pillado et al., 2014), as well as a relatively high 232Th content of 193,732 ± 3900 ppt and a low 230Th/232Th ratio of 7.89 ± 0.17. As the latter ratio is indicative of some detrital particles in the calcium carbonate matrix, the final U-series age has been calculated after including a detrital correction.
New bracketing luminescence ages constrain the Sima de los Huesos hominin fossils (Atapuerca, Spain) to MIS 12
2019, Journal of Human EvolutionBrain size and organization in the Middle Pleistocene hominins from Sima de los Huesos. Inferences from endocranial variation
2019, Journal of Human EvolutionAssemblages with bifacial tools in Eurasia (third part). Considerations on the bifacial phenomenon throughout Eurasia
2018, Comptes Rendus - PalevolAn updated age for the Xujiayao hominin from the Nihewan Basin, North China: Implications for Middle Pleistocene human evolution in East Asia
2017, Journal of Human EvolutionCitation Excerpt :Uranium-series dates from pure calcites are generally considered to be accurate and precise, but datable calcite is not present at Xujiayao. Unlike calcite, bones are susceptible to post-burial U migration, thus, U-series dating of bones and teeth is prone to producing substantially young ages as demonstrated by U-series dating of intercalated calcite formations and excavated fossil bones in archeological sites (Bischoff et al., 2003; Shen et al., 2004a, b, 2010; 2014; Grün et al., 2014). Technical limitations and the low resolution of measurements made more than 30 years ago therefore mean that initial U-series dating of teeth from Xujiayao may have underestimated their true ages.