Otzi the iceman radiocarbon dating

This climatic change is supported also by some soil-evidence found in depression at an altitude of 9,850-10,500ft and dating to the same time the iceman died.Similar recent soils need at least 500 to 1,200 years to develop, suggesting that the climatic conditions on the site were for a long time relative favorable for biological and chemical activity until a relatively quick drop of temperatures.The prehistoric mummified corpse, soon known worldwide as “Ötzi” the Iceman, together with its unique set of tools and artifacts provided a unique opportunity for the study of a Copper-Age man.But the mummy provided also insights on the glaciers during a little known warm interval in the last 10.000 years.The body was left at the site of the murder -- perhaps the aggressors assumed that scavengers and time would erase all the evidences, but in the cold and dry climate at 11,480 ft above sea level the body begun to desiccate.Large scavengers didn’t venture in this desolate region, and only a few flies were able to deposits their eggs on the body -- but they weren’t able to destroy it.For archaeologists and for glaciologists, this was a unique discovery.

This trim line can also be recognized locally as marked weathering line that separates different oxidized reddish surfaces (as the bed rock consists of iron-rich gneiss and schist the rocks will become rusty over time).The mummy itself was dated by radiocarbon dating to 4,500 -30 and 4,580 -30yr before present (by convention before 1950), which corresponds to a calibrated age of 5,300-5,050 years.The sudden burial of the corpse in a permanent snow and ice cover indicates a significant climatic change followed by growing glaciers, lasting until recent times.His scant food supply consisted of a sloeberry, mushrooms, and a few gnawed ibex bones.25 years ago two German hikers discovered the mummified corpse of a bronze-age man in the Ötztaler Alps, along the border of Austria and Italy.

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