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    Dating mt st helens rocks

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    Why else do we find marine fossils on the tops of all the major mountain ranges?Lloyd Anderson, far right, takes home-schooled children on a tour of the land around Mount St.Helens, pointing out geologic structures formed by the volcano’s eruption in 1980 that young-Earth creationists say support their beliefs.“Look! ” Lloyd Anderson springs ahead of the small group of visitors he has been leading through Gifford Pinchot National Forest.Why does the lava dome provide an opportunity to test the accuracy of radioisotope dating? First, radioisotope dating methods can be used mainly on volcanic (igneous) rock, such as dacite.(Fossil-bearing sedimentary rock cannot be directly dated radioisotopically.) Second, the date of formation of the dacite is known. Helens provides a rare opportunity for putting radioisotope dating to the test.The dome (Figure 1) sits like a small mountain (roughly 3/4 mile in length and 1000 feet high) directly over the volcanic vent, which is at the south end of the huge horseshoe-shaped crater blasted out of the mountain by the May 18, 1980 eruption.Helens, which rises behind Anderson and his joyous grin.The snow-capped volcano dazzles against a crystal blue sky, its peak obliterated 25 years ago in an eruption that left it looking like a dish of vanilla ice cream whose top has been scooped off by an eager child.An examination of sedimentary rocks worldwide shows a striking consistency with the unimaginably massive Flood that wiped out whole environments.It caused massive sedimentary layering and sorting and fossilizing of the creatures buried therein.A Summary of the Million Dollar RATE Research Project (Radioisotopes and the Age of The Earth) Introduction: Rocks and fossils do not come with dates on them.In fact, the very concept of strata representing long ages does not come from the rock strata themselves.It is composed of a volcanic rock called dacite and appears to an observer in the crater as a huge steaming mound of dark, blocky rubble. Helens is the third dome to form since the 1980 eruption, the first two having been blasted away by subsequent eruptions.

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