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Articles

Vol. 28 No. 1 (2019)

Geomorphological mapping of the Hidrographic Basin Arroio Pelotas, RS

DOI
https://doi.org/10.5433/2447-1747.2019v28n1p151
Submitted
April 19, 2018
Published
2019-02-05

Abstract

The purpose of this work was to map the geomorphology of the Arroio Pelotas Basin (APB) from the methodology of the subdivision of the relief to the 3rd taxon, where the Patterns Units of the Similar Forms of Relief were mapped. The APB geomorphology map presented eight distinct classes. Of these, five were mapped in the morphostructure of the South Rio Grande do Sul Shield, occupying the respective percentages of the total area of the basin: Flap Top Hill (11%), Hill with Convex Top and Mild Strands (35%), Steep slopes (13%), Hills with Convex Tops (15%) and Fluvial-colluvial Plain (3%). In the morphostructural unit of the Pelotas Sedimentary Basin three classes were mapped, occupying the respective percentages of the study area: Pond Plain and Pond Plain with Dunes and Marsh Terrain (15%) and Plain Fluvial Pond (8%).

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