31 5: Half-life And Activity Physics Libretexts

28 Mayıs 2023

It takes a long time alt to get to the underside of

reacts less strongly, and doubtless isn’t incorporated so simply into

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another. More U is present in carbonate rocks, whereas Th has a very

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a change in concentration from the highest to the underside of the magma

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With this in mind, we carried out a large simulation examine to analyze the impact of chronological uncertainty on a probably helpful time-series methodology. The method is a sort of regression involving a prediction algorithm called the Poisson Exponentially Weighted Moving Average (PEMWA). It is designed to be used with count time-series data, which makes it relevant to a variety of questions about human-environment interaction in deep time. Our simulations recommend that the PEWMA technique can typically appropriately identify relationships between time-series despite chronological uncertainty. When two time-series are correlated with a coefficient of 0.25, the strategy is in a position to establish that relationship correctly 20–30% of the time, offering the time-series comprise low noise levels. With correlations of around 0.5, it is able to correctly figuring out correlations despite chronological uncertainty more than 90% of the time.

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