Radiocarbon dating evidence for mammoths on wrangel island
The tusk is now at the Adelphi University archaeology laboratory, where it will undergo further analysis.One day thousands of years ago, on a tiny island in the middle of the Bering Sea, a woolly mammoth made a fatal misstep.
The date made Graham wonder: After the animals persisted on this wind-battered speck of land for so many millennia after mainland populations perished, what finally killed them off?Ocean sediment C-14 data The Lamont-Doherty Earth Observatory of Columbia University has compiled 974 C-14 dates from 309 ocean sediments cores, covering the period from 40,000 years BP to the present worldwide. The USGS Bear Lake Project aims to create records of past climate change for the Bear Lake region,including changes in precipitation patterns during the last 10,000 years and how the size of Bear Lake has varied in the past, to assess the possibility of future flooding and drought.A prehistoric campfire and a number of archaeological treasures — including a large tusk of a mammoth, and tools fashioned out of stone and ivory — remained hidden for thousands of years in the Alaskan wilderness until researchers discovered them recently.As he explored the space with his colleagues, Russell Graham, a paleontologist from Pennsylvania State University, lifted a rock near the back.There he found a single, pristine tooth from the mammoth, oblong and bumpy and as big as a loaf of bread.
The other two co-principal investigators are Charles Holmes, an affiliate research professor the University of Alaska Fairbanks, and Barbara Crass, a faculty researcher in the Department of Religious Studies and Anthropology at the University of Wisconsin - Oshkosh."This question is significant because it could provide further evidence that the first Americans were involved in the extinction of the woolly mammoth," Krasinski and Wygal told Live Science in an email.