Fission tracks are most often caused by the spontaneous fission of the parent Uranium-238 atom into two daughter atoms of palladium-119.
The method has found particular application in estimating temperature history and long-term denudation rates in orogenic belts, rifted margins and more stable areas, providing a means of assessing the timing and volume of sediment being delivered to sedimentary basins, and as an estimator of hydrocarbon maturity potential.
Fission-track analysis of U-bearing minerals (mainly zircon, apatite and sphene) is based on the natural decay by spontaneous fission of the U atoms, located within the mineral itself (Fleischer et al., 1975).
In order to evaluate ICR's findings, one must first establish a proper methodology for fission track dating and compare ICR's methodology and finding to previous results.
Fission tracks, as physical structures, are simply linear tracks in rock crystals usually about 10-6 meters long.
Fission track dating is somewhat of an anomaly in the field of radiometric dating.