Precambrian (pre-Flood) schists, gneisses, and related metamorphic rocks, intruded by granites outcrop in the Elat area of southern Israel. Their radioisotope ages range from 800–813 Ma to 600 Ma. Also, just to the north of Elat is the Timna Igneous Complex, a 610–625 Ma series of granitic intrusions. All these rock units across this region were then intruded along fractures by swarms of dikes. Together these metamorphic and igneous rocks form the northernmost part of the Arabian-Nubian Shield, which would have likely been a section of the pre-Flood supercontinent Rodinia, established by God's creative activity on Day Three of the Creation Week. It is thus envisaged that this cataclysmic rate of formation of these rocks during an episode of accelerated radioisotope decay accounts for their apparent long history when wrongly viewed in the context of today's slow process rates. Unconformably overlying these Precambrian crystalline basement rocks are terminal Precambrian conglomerates, arkoses and interbedded, explosively-erupted volcanics that were obviously deposited by catastrophic debris avalanches as the pre-Flood supercontinent began to break up, with accompanying igneous activity that coincided with the bursting forth of the fountains of the great deep. It is envisaged that another episode of accelerated radioisotope decay must have begun months previously, the released heat progressively increasing so as to initiate the igneous activity that ultimately triggered the renting apart of the pre-Flood supercontinent at the onset of the Flood cataclysm. The pre-Flood/Flood boundary in southern Israel is thus determined as the major unconformity between the Precambrian crystalline basement and the overlying terminal Precambrian conglomerates, arkoses and volcanics, almost identical to that boundary as determined in the U.S. Southwest. The few 210Po radiohalos found in some of the basement granitic rocks are likely due to the basinal fluids that flowed from the basal Flood sediments when heated by burial under the overlying thick, rapidly-accumulated sequence of Flood sediments.