Bone dating adult personals online interracial dating services
Senior research scientist Alexander Cherkinsky specializes in the preparation of samples for Carbon-14 testing.
He directed the pretreatment and processing of the dinosaur bone samples with the Accelerator Mass Spectrometer, though he did not know the bones were from dinosaurs, and he signed the reports.
Schweitzer herself wonders why these materials are preserved when all the models say they should be degraded.
That is, if they really are over 65 million years old, as the conventional wisdom says. A lone femur bone was excavated in 2004 in Cretaceous clay at 47 6 18N by 104 39 22W in Montana by the O. Miller team in 2005 to retrieve samples for C-14 testing. Collagen: Proteins that are the main component of connective tissue.
This was news to him, and contradicted prior statements and documents from the university.
He is currently seeking relief in a legal action for wrongful termination and religious discrimination by California State University Northridge (CSUN).
Carbon-14 is considered to be a highly reliable dating technique.
He said that his team and the laboratories they employed took special care to avoid contamination.
That included protecting the samples, avoiding cracked areas in the bones, and meticulous pre-cleaning of the samples with chemicals to remove possible contaminants.
It's accuracy has been verified by using C-14 to date artifacts whose age is known historically.
The fluctuation of the amount of C-14 in the atmosphere over time adds a small uncertainty, but contamination by "modern carbon" such as decayed organic matter from soils poses a greater possibility for error. Thomas Seiler, a physicist from Germany, gave the presentation in Singapore.
Critics charged that the findings were mistaken or that what she called soft tissue was really biofilm produced by bacteria that had entered from outside the bone.