How many grains are needed for a provenance study?

Details How many grains are needed for a provenance study? How many grains are needed for a provenance study?

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004e%26psl.224..441v&link_type=abstract

Earth and Planetary Science Letters, Volume 224, Issue 3-4, p. 441-451.

Statistics

27

Provenance, Detrital, Geochronology, Counting Statistics, Histogram

Scientific paper

Detrital provenance studies using single-grain geochronology are very labor-intensive. This paper presents a method for calculating k, the smallest number of grains in a sample that must be dated to achieve a required level of statistical adequacy. For example, if it is desired that no fraction of the population comprising more than 0.05 of the total is missed at the 95% confidence level, at least 117 grains should be dated. The paper also provides recommendations about cases where fewer than the optimal number of grains have been dated.

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