Carbon dating on man made objects

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One modern date related to an intrusion," Stafford says.

"The two 50,000 dates indicate that they are at least 50,300 years.

May 2001 — Geologists revisit Topper and obtain ancient plant remains deep down in the Pleistocene terrace.Evidence of modern man's migration out of the African continent has been documented in Australia and Central Asia at 50,000 years and in Europe at 40,000 years.The fact that humans could have been in North America at or near the same time is expected to spark debate among archaeologists worldwide, raising new questions on the origin and migration of the human species.Artifacts, similar to pre-Clovis forms excavated in previous years, recovered deep in the terrace.A black stain in the soil provides charcoal for radio carbon dating."The dates could actually be older," Goodyear says.

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