Radioactive decay rate is a logarithmic function of time commonly called half-life.
Half-life is assumed to be constant and generally unaffected by heat, pressure, magnetic or electric fields, local chemistry or other environmental factors.
Conventional uranium decay dating techniques will typically suggest a very high age, usually on the order of a billion years or more.
The rate of decay is assumed to be relatively constant over time.By measuring the amount of remaining helium in samples at specific depth intervals, and knowing temperature at each interval, known leak rate with temperature establishes the activity level and time.Actual helium measurements taken from core samples submitted to independent labs for blind testing revealed that the Earth’s age is roughly 6000 years (±2000 years). Evolutionary scientists performing the tests did not consider pressure to be a factor due to the hardness of the zircon crystals.When this occurs, the daughter products will shoot out in opposite directions leaving distinct radiohalo tracks.Daughter products along with size and color of tracks indicate exactly what the original parent element and isotope were.