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Trata-se de um conjunto de informações gráficas (pontos, linhas e polígonos) e alfanuméricas, georreferenciadas, interpretadasem escala 1:250.000, que retratam características geomorfológicas da Folha conforme metodologia contida no Manual Técnicode Geomorfologia (ftp://geoftp.ibge.gov.br/documentos/recursos_naturais/manuais_tecnicos/manual_tecnico_geomorfologia.pdf). São delineados e descritos polígonos de modelados de relevo contendo suanatureza genética, Unidade e Região Geomorfológica e o Domínio Morfoestrutural no qual estão inseridos. Também são representadas,por linhas e pontos, as principais formas de relevo encontradas no país.A metodologia descrita no Manual Técnico de Geomorfologia é uma evolução dos procedimentos metodológicos adotados pelo projetoRADAMBRASIL no mapeamento geomorfológico do Brasil na escala de 1:1.000.000. O processo de elaboração dos mapas consistedas seguintes etapas: (1) estudo preliminar da área com a aquisição de bibliografia, documentos cartográficos e produtosde sensoreamento remoto, (2) elaboração de mapa geomorfológico preliminar com a análise da drenagem e delimitação de modeladose formas de relevo, apontando os locais de dúvida e de interesse para a terceira etapa, (3) atividade de campo, que tem comoobjetivo, além de solucionar dúvidas, o reconhecimento de características do relevo com preenchimento de formulários de campoe registros fotográficos, (4) reinterpretação do mapeamento com base nas informações obtidas em campo, e (5) armazenamentodas informações gráficas e alfanuméricas em banco de dados para posterior consulta, tratamento e/ou edição.

ver Fonte/+info (dt.atualização: 12/06/2018)

FID	GeomorfologiaSA24.fid-6d9cbe3e_18e3b294723_164f
Folha	SA24
Legenda_Completa	663Dt21
Nome_Dominio	Crátons Neoproterozóicos
Nome_Regiao	Cráton São Luís
Identificacao_Unidade	663
Nome_Unidade	Superfície Dissecada de Chaval
Letra_Simbolo	Dt
Categoria	Homogênea tabular
Natureza	dissecação
Caracteristica	dissecação homogênea ou diferencial
Forma	topo tabular
Densidade_Drenagem	baixa
Aprofundamento_Incisoes	muito fraco : até 50m
Nivel_Altimetrico
Legenda	Superfície Dissecada de Chaval
Area_Poligono_Km2	57.357
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