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Title:
Combining cosmogenic, stratigraphic, and paleomagnetic information using a Bayesian approach: General results and an application to Sterkfontein
Authors:
Muzikar, Paul; Granger, Darryl
Affiliation:
AA(Department of Physics, Purdue University, West Lafayette, IN 47907, Unites States), AB(Department of Earth and Atmospheric Sciences, Purdue University, West Lafayette, IN 47907, Unites States)
Publication:
Earth and Planetary Science Letters, Volume 243, Issue 3-4, p. 400-408. (E&PSL Homepage)
Publication Date:
03/2006
Origin:
ELSEVIER
DOI:
10.1016/j.epsl.2005.12.020
Bibliographic Code:
2006E&PSL.243..400M

Abstract

In geochronology it is increasingly common to apply several methods to a set of samples. The task then arises of combining different types of data, with perhaps qualitatively different types of uncertainty, into a coherent age estimate which makes optimum use of the available information. In this paper we discuss a method which uses Bayesian reasoning to combine radiometric, stratigraphic, and paleomagnetic information when dating sediment layers. After presenting a general formulation, we derive an analytic formula for the probability distribution of the age of a sediment layer. We then apply this methodology to refine previous cosmogenic nuclide burial dating results for the age of a sediment layer containing a hominin fossil at Sterkfontein, South Africa.
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