Experiments co-sponsored by the Creation Research Society show that helium leakage deflates radioisotopic ages. In 1982 Robert Gentry found amazingly high retentions of nuclear-decay-generated helium in microscopic zircons (ZrSiO4 crystals) recovered from a borehole in hot Precambrian granitic rock at Fenton Hill, NM. We contracted with a high-precision laboratory to measure the rate of helium diffusion out of the zircons. The initial results were very encouraging. Here we report newer zircon diffusion data that extend to the lower temperatures (100º to 277º C) of Gentry's retention data. The measured rates resoundingly confirm a numerical prediction we made based on the reported retentions and a young age. Combining rates and retentions gives a helium diffusion age of 6,000 ± 2,000 years. This contradicts the uniformitarian age of 1.5 billion years based on nuclear decay products in the same zircons. These data strongly support our hypothesis of episodes of highly accelerated nuclear decay occurring within thousands of years ago. Such accelerations shrink the radioisotopic "billions of years" down to the 6,000-year timescale of the Bible. Coal deposits within the Paraná Basin, Brazil apparently formed as a result of large-scale catastrophic deposition. The strata in the basin contain diamictites, turbidites, and coal layers exhibiting hummocky cross stratification, and are interpreted by uniformitarian geoscientists as having formed within a depositional setting analogous to catastrophic floods caused by one or more prehistoric jökullhlaups—an Icelandic term for glacial outburst. Naturalists speculate that extensive alpine glaciation created conditions where considerable volumes of water became trapped behind large glaciers. The catastrophic release of the water washed forests of spore-bearing plants into the basin's fluvial-deltaic glacial environment. This combination of sedimentary and organic material was buried by successive catastrophic event deposits and resulted in the creation of coaly siltstone deposits. Although uniformitarians must strain their paradigm to propose such a mechanism, their conclusions are predicted by the global Flood. These sedimentary deposits and associated coal layers formed during the Middle Flood Event Timeframe when tectonism and erosion created destabilizing conditions in areas that experienced uplift. The erosion and transport of material into the adjoining basin resulted in the formation of strata that reflect catastrophic Flood conditions.