Estudo dos Sedimentos de Fundo do Alto Rio Grande: Município de Nova Friburgo

The present paper is a contribution to the study of the Upper Grande River, Nova Friburgo. It is a preliminary study of the relationship between the river-bed sediments and the declivity of the river profile. Granulometric analysis were performed on channel sediments in attempt to find a sedimentolo...

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Bibliographic Details
Published inAnuário do Instituto de Geociências Vol. 3; pp. 82 - 92
Main Author Cunha, Sandra Baptista da
Format Journal Article
LanguageEnglish
Published Universidade Federal do Rio de Janeiro 01.01.1979
Subjects
granulometric analysis
Nova Friburgo
rio Grande
river sediments
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Summary:The present paper is a contribution to the study of the Upper Grande River, Nova Friburgo. It is a preliminary study of the relationship between the river-bed sediments and the declivity of the river profile. Granulometric analysis were performed on channel sediments in attempt to find a sedimentological caracterization of the river. The following parameters were computed: central tendency (median grain size (Md;) and mean grain size (M Z) , dispersion (σI) , assimetry (SK I) and curtosis (K G).The data analysed shows two distinct environments: that of the headwaters and that of the base level. Both environments are composed of poorly selected sediments.
ISSN:0101-9759
1982-3908
DOI:10.11137/1979_0_82-92