Study questions carbon dating

01 Jan

Scientists have developed calibration techniques to adjust for these fluctuations.

While alive, all plants and animals take C14 into their bodies.

Asphalt volcanos really do exist on the ocean floor.

They leak natural gas, oil, and the same type of black glop we use for road pavement.

Ice cores showed the age of a military plane buried in the artic as thousands of years old.

Similarly, dendrochronology measures the tree rings in trees and assumes they represent years.

Buckyball carbon holds the promise for opening a whole new field of chemistry (see accompanying sidebar).

One known example where this assumption was used is very misleading.The earliest experiments in radiocarbon dating were done on ancient material from Egypt. Libby’s team obtained acacia wood from the 3rd Dynasty Step Pyramid of Djoser to test a hypothesis they had developed.Libby reasoned that since the half-life of C years, the Djoser sample’s C14 concentration should be about 50% of the concentration found in living wood (for further details, see Arnold and Libby, 1949). Subsequent work with radiocarbon testing raised questions about the fluctuation of atmospheric C14 over time.They have been oozing for who knows how long, although scientists discovered them only 15 or so years ago. For example, they cleaned up the Gulf of Mexico after the Deepwater Horizon oil spill more quickly than some thought possible.Unique sea creatures team up to eat their petroleum products. Mussels use their gills not only for vital gas exchange, but also to absorb nutrients from seawater.