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Abstract

Summary

The aim of the work is characterize and compare the heavy mineral composition of Alkaline and Basement-derived alluvial fans of the Paleogene of the Resende Basin. The methodology was based in field works to collect samples of the two main sedimentary sorces of the region: the Itatiaia alkaline Massif and the faulted north edge of the Resende basin. The samples were processed in laboratory to concentrate the heavy minerals and then, the assemblage was analyzed in binocular loupe. The two samples showed differences principally in zircon forms, bipiramidals and short prisms in alkaline sample and long prisms in basement sample. Compositional differences also has been noticed, the presence of biotite and anatase only in the alkaline-derived alluvial fan sample, while in basement-derived ocurred garnet and tourmaline. The differences of the two assemblages can be used as markers of the alkaline alluvial fans contribution principally for the fluvial systems of the Resende Formation.

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/content/papers/10.3997/2214-4609.201527067
2015-07-27
2024-04-29

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References

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201527067
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Comparative Heavy Mineral Composition of Alluvial Fans in the Resende Basin, Southeast Brazil - Preliminary Results
Conference Proceedings 2015, 1 (2015); https://doi.org/10.3997/2214-4609.201527067
/content/papers/10.3997/2214-4609.201527067
/content/papers/10.3997/2214-4609.201527067
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