Whenever information is provided ,especially about tht vast stretches of Time and archaeological finds relating to Indian History ivam immediately asked whether it is is Carbon dated.
I wrote articles on Thiruvannamalai being 3. 94 Million years old and Thirupati as 2100 million years old.
I did not rely on Carbon dating , but on Infra red imaging study for Thiruvannamalai and Geological dating based on tectonic shifts and thermal imaging technology.
The reason is that Carbon Dating, C-14 method can not measure Time beyond 50, 000 years.
May be it can be extended to 100000 years by accelersted technics.
Indian History extends beyond 100,000 years.
Even this assumes the equillibrium between the environment and an assumption that Carbon days at a fixed level.
And if any Nuclear Blast had taken place between the time when the object has been found and the time when you measure it, the reading will nit be accurarate because the Nuclear Explosion would have changed the Isotope levels in the atmosphere.
So one has to assume there were no Nuclear explosions in the past.
And this I call the arrogance of Science.
When we study vast stretches mentioned in Hindu Texts , we have to depend on other tools.
‘ Presuming the rate of production of carbon-14 to be constant, the activity of a sample can be directly compared to the equilibrium activity of living matter and the age calculated. Various tests of reliability have confirmed the value of carbon data, and many examples provide an interesting range of application.
Carbon-14 decays with a halflife of about 5730 years by the emission of an electron of energy 0.016 MeV. This changes the atomic number of the nucleus to 7, producing a nucleus of nitrogen-14. At equilibrium with the atmosphere, a gram of carbon shows an activity of about 15 decays per minute.
The low activity of the carbon-14 limits age determinations to the order of 50,000 years by counting techniques. That can be extended to perhaps 100,000 years by accelerator techniques for counting the carbon-14 concentration.’
BP. Before Present.
Before Present (BP) years is a time scale used mainly in geology and other scientific disciplines to specify when events in the past occurred. Because the “present” time changes, standard practice is to use 1 January 1950 as commencement date of the age scale, reflecting the fact that radiocarbon dating became practical in the 1950s. The abbreviation “BP”, with the same meaning, has also been interpreted as “Before Physics”; that is, before nuclear weapons testing artificially altered the proportion of the carbon isotopes in the atmosphere, making dating after that time likely to be unreliable
Citations and references.