In 2011, a Swedish team found soft tissue and biomolecules in the bones of another creature from the time of the dinosaurs, a Mosasaur, which was a giant lizard that swam in shallow ocean waters.
Schweitzer herself wonders why these materials are preserved when all the models say they should be degraded.
I have instructed the Radiocarbon Laboratory to return your recent samples to you and to not accept any future samples for analysis."Notice that he did not say the radiocarbon reports of the dinosaur bone samples were inaccurate.
No, his objection was that the Paleochronology group was using the reports as evidence that dinosaurs lived thousands, not millions, of years ago. A manager of a commercial laboratory that does Carbon-14 dating, Beta Analytic Inc., reviewed a poster display of the dinosaur data and discussed it with a member of the Paleochronology group.
Carbon dating at this facility is certainly the very best.That included protecting the samples, avoiding cracked areas in the bones, and meticulous pre-cleaning of the samples with chemicals to remove possible contaminants.Knowing that small concentrations of collagen can attract contamination, they compared precision Accelerator Mass Spectrometry (AMS) tests of collagen and bioapatite (hard carbonate bone mineral) with conventional counting methods of large bone fragments from the same dinosaurs. Mary Schweitzer, associate professor of marine, earth, and atmospheric sciences at North Carolina State University, surprised scientists in 2005 when she reported finding soft tissue in dinosaur bones.Since dinosaurs are thought to be over 65 million years old, the news is stunning - and more than some can tolerate.After the AOGS-AGU conference in Singapore, the abstract was removed from the conference website by two chairmen because they could not accept the findings.An ancient village that is older than the Egyptian pyramids has been discovered in a remote part of Canada After excavating a settlement on Triquet Island on British Columbia's Central Coast archaeologists dated it to 14,000 years ago, during the last ice age when glaciers covered much of North America.It was discovered by team searching for evidence that supported the oral histories of the indigenous Heiltsuk people, which told of a sliver of land during the last ice age that never froze.Carbon-14 is considered to be a highly reliable dating technique.It's accuracy has been verified by using C-14 to date artifacts whose age is known historically.Legend has it that the Heiltsuk took refuge there during the big freeze.Alisha Gauvreau, a Ph D student at the University of Victoria, worked with members of the Heiltsuk Nation to excavate the site.