Oxygen isotope analysis of Equus teeth evidences early Eemian and early Weichselian palaeotemperatures at the Middle Palaeolithic site of Neumark-Nord 2, Saxony-Anhalt, Germany
| Autor: | Sabine Gaudzinski-Windheuser, Lutz Kindler, Sarah Pederzani, Kate Britton, Michael P. Richards, Thomas Tütken, Wil Roebroeks |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
010506 paleontology
Archeology Global and Planetary Change Eemian Neanderthal 010504 meteorology & atmospheric sciences biology Pleistocene δ18O Geology biology.organism_classification 01 natural sciences Equus biology.animal Paleoclimatology Stadial Physical geography Ecology Evolution Behavior and Systematics Horse teeth 0105 earth and related environmental sciences |
| Popis: | Here we present phosphate oxygen isotope (δ 18OPO4) data from horse (Equus sp.) tooth enamel (bioapatite) from early Eemian and early Weichselian find levels at the archaeological site of Neumark-Nord 2, Germany. Based on the relationship between δ18OPO4 of bioapatite, body water, local precipitation and air temperature, these data are used to reconstruct palaeoclimatic conditions contemporary to the different phases of Neanderthal activity at the site. Bulk enamel samples representing one year of growth were taken from horse teeth from early Eemian (NN2/2b [∼121 ± 5 ka], and NN2/1c) and early Weichselian (NN2/0; ∼93 ± 7 ka) find levels, and δ18OPO4 values were then utilised to calculate δ18O of local environmental water and mean annual air temperatures (MATs) during these phases of MIS5. Results indicate that during the early Eemian MAT was ∼9 °C, with some evidence of variability through time. Although ∼3 °C lower, the calculated early Weichselian MAT exceeds that indicated by other local and regional climate proxy datasets, suggesting that Neanderthal activity may have coincided with more ameliorate phases of the early Weichselian in this area. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|