Sentences with phrase «radiocarbon dating indicated»

Then it was pushed aside because it showed glaciers in a part of Alaska that the new technique of radiocarbon dating indicated were forested.

But, a team recently found donkey dung while exploring an ancient camp, that radiocarbon dating indicated was 3,000 years old.

Not exact matches

«When these dates were compared with radiocarbon data from tree rings, we noted decreased levels of carbon - 14 — indicating increased levels of solar activity — at these same points.»

Radiocarbon dating of minute leaf and wood fragments preserved in the cave's ice indicates that its glacier is at least 10,500 years old, making it the oldest cave glacier in the world and one of the oldest glaciers on Earth outside the polar regions.

Radiocarbon dated to around 1450 — 1640 AD, skeletal examination indicated that the mummy was likely 20 - 25 years old at the time of her death, and her skull exhibits typical Incan - type skull formations.

Radiocarbon dating on some of these sites indicates that humans have been using the island for more than 13,000 years.

Our genetic results also indicate that divergence within northern island lineages occurred more recently than our radiocarbon dates.

Thus tremendous increases of Nile discharge are determined, by radiocarbon dating, to have occurred about 12,000 and 9,000 years ago, separated and followed by alluviation, indicating reduced runoff in the headwaters.