http://www.cnr.it/ontology/cnr/individuo/prodotto/ID232114
Raman counting: a new method to determine provenance of silt (Articolo in rivista)
- Type
- Label
- Raman counting: a new method to determine provenance of silt (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s12210-011-0142-4 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Andò S. 1, Vignola P., Garzanti E. 1 (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1) Laboratorio di Petrografia del Sedimentario, Dipartimento di Scienze Geologiche e Geotecnologie,
Universita` di Milano-Bicocca, 20126 Milan, Italy (literal)
- Titolo
- Raman counting: a new method to determine provenance of silt (literal)
- Abstract
- This article proposes a new integrated methodology to determine the mineralogical
composition of silt-sized sediments, reaching the same precision level required to
perform quantitative provenance analysis as traditionally done on sand-sized sediments.
We examine technical problems encountered in analysis of silt and illustrate how they can
be solved for suspended load in a modern fluviodeltaic environment. All methods
described here, and specifically the user-friendly Raman spectroscopy, can be routinely
applied in mineralogical studies of ancient siltstones. Provenance information can thus be
extracted from mudrocks, which represent a very conspicuous part of the stratigraphical
record and are prone to preserve original detrital assemblages from diagenetic dissolution
better than permeable interlayered sandstones. Quantitative mineralogical analysis of siltsized
sediments by innovative techniques opens up new frontiers in sedimentary petrology.
Such an effective approach is of crucial importance to make accurate provenance diagnoses
and sediment budgets and to correctly unravel the innumerable pieces of geological
information stored in sedimentary archives from the alluvial plain to the deep-sea (literal)
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