Adultfinder dating - Mt st helens dating

In most instances, these efforts are flawed because the authors have misunderstood or misrepresented the data they attempt to analyze (for example, Woodmorappe 1979; Morris HM 1985; Morris JD 1994).

Only rarely does a creationist actually find an incorrect radiometric result (Austin 1996; Rugg and Austin 1998) that has not already been revealed and discussed in the scientific literature.

I have selected four examples from recent literature, mostly studies involving my work and that of a few close colleagues because it was easy to do so.

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Creationists seem to think that a few examples of incorrect radiometric ages invalidate all of the results of radiometric dating, but such a conclusion is illogical.

Even things that work well do not work well all of the time and under all circumstances.

The fossils, when combined with geologic mapping, allow the various exposed sections of the Pierre Shale to be pieced together in their proper relative positions to form a complete composite section (Figure 1).

The Pierre Shale also contains volcanic ash that was erupted from volcanoes and then fell into the sea, where it was preserved as thin beds.

These melted crystals, and therefore the impact, have been dated by the 40Ar/39Ar method at 74.1 Ma (million years; Izett and others 1998), but that is not the whole story by a long shot.

The impact also created shocked quartz crystals that were blasted into the air and subsequently fell to the west into the inland sea that occupied much of central North America at that time.Today this shocked quartz is found in South Dakota, Colorado, and Nebraska in a thin layer (the Crow Creek Member) within a thick rock formation known as the Pierre Shale.The Pierre Shale, which is divided into identifiable sedimentary beds called members, also contains abundant fossils of numerous species of ammonites, ancestors of the chambered nautilus.The conventional K-Ar dating method was applied to the 1986 dacite flow from the new lava dome at Mount St. The whole-rock age was 0.35 /- 0.05 million years (Mya). Excess argon within mineral concentrates from the New Dacite Lava Dome at Mount St. Creation Ex Nihilo Technical Journal 10(3): 335-343. module=research&action=index&page=researchp_sa_r01 Henke, Kevin R. Ages for component minerals varied from 0.34 /- 0.06 Mya to 2.8 /- 0.6 Mya. Usually determinations of age are repeated to avoid laboratory errors, are obtained on more than one rock unit or more than one mineral from a rock unit in order to provide a cross-check, or are evaluated using other geologic information that can be used to test and corroborate the radiometric ages.

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