Universidad Complutense de Madrid
E-Prints Complutense

High-resolution U-series dates from the Sima de los Huesos hominids yields 600þN-66 kyrs: implications for the evolution of the early Neanderthal lineage

Impacto

Downloads

Downloads per month over past year



Bischoff, James L. and Williams, Ross W. and Rosenbauer, Robert J. and Aramburu Artano, Arantza and Arsuaga, Juan Luis and García García, Nuria and Cuenca Bescós, Gloria (2007) High-resolution U-series dates from the Sima de los Huesos hominids yields 600þN-66 kyrs: implications for the evolution of the early Neanderthal lineage. Journal of archaeological science, 34 . pp. 763-770. ISSN 0305-4403

[img]
Preview
PDF
1MB

Official URL: http://www.journals.elsevier.com/journal-of-archaeological-science/



Abstract

The Sima de los Huesos site of the Atapuerca complex near Burgos, Spain contains the skeletal remains of at least 28 individuals in a mudbreccia
underlying an accumulation of the Middle Pleistocene cave bear (Ursus deningeri). We report here on new high-precision dates on the
recently discovered speleothem SRA-3 overlaying human bones within the Sima de los Huesos. Earlier analyses of this speleothem by TIMS
(thermal-ionization mass-spectrometry) showed the lower part to be indistinguishable from internal isotopic equilibrium at the precision of the
TIMS instrumentation used, yielding minimum age of 350 kyr (kyr¼ 103 yr before present). Reanalysis of six samples of SRA-3 by inductivelycoupled
plasma-multicollector mass-spectrometry (ICP-MS) produced high-precision analytical results allowing calculation of finite dates. The
new dates cluster around 600 kyr. A conservative conclusion takes the lower error limit ages as the minimum age of the speleothem, or 530 kyr.
This places the SH hominids at the very beginnings of the Neandertal evolutionary lineage.


Item Type:Article
Uncontrolled Keywords:Atapuerca; Sima de los Huesos; Middle Pleistocene; Neandertal; Uranium-series
Subjects:Sciences > Geology > Paleontology
ID Code:27926
Deposited On:14 Jan 2015 13:40
Last Modified:11 Dec 2018 08:42

Origin of downloads

Repository Staff Only: item control page