Abstract
ABSTRACT Currently popular approaches to provenance identification commonly use mineralogic and chemical compositions of siliciclastic sediments or of detrital clastic grains for graphical solutions. We have statistically tested three deterministic models using the raw data that were originally used to construct classifications for determining the provenance of sands and sandstones. These models are based on 1) detrital modes of sandstones (Dickinson et al. 1983), 2) undulosity and polycrystallinity of detrital quartz (Basu et al. 1975), and 3) chemical compositions of muddy sediments and rocks (van de Kamp and Leake 1985). Our results show that these models can successfully classify no more than 85% of their own data. We suggest that additional variables (such as heavy minerals), the combinat on of different methods, and statistical analysis of data are necessary to improve the reliability of provenance interpretation.
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