Geologia e petrologia das rochas do subsolo em Auta Balefi

Geologia e petrologia das rochas do subsolo em Auta Balefi

Eze Uchenna

65,55 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Geología y la litosfera
ISBN:
9786209204043
65,55 €
IVA incluido
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Auta Balefi, localizada na Área do Governo Local de Karu do Estado de Nasarawa, no Centro-Norte da Nigéria, situa-se no Complexo Pré-Cambriano de Cave na Folha de Keffi 208NW. O Complexo Cimentar Nigeriano consiste em três grupos litológicos principais: o Complexo Migmatite-Gneiss, as Cinturas de Xisto e os Granitos mais antigos. Na área de estudo, as rochas do subsolo são predominantemente granito, migmatite gnaisse, granito gnaisse e xisto. Estudos anteriores, nomeadamente os de Rahaman (1988) e Dada (2006), centraram-se na cartografia regional à escala de 1:100.000, o que proporcionou uma visão geológica alargada, mas deixou lacunas nos pormenores locais. Para resolver este problema, a presente investigação dá ênfase a estudos geológicos e petrográficos pormenorizados a uma escala mais fina de 1:25.000. Esta abordagem permite um mapeamento mais preciso dos afloramentos e das caraterísticas estruturais, ao mesmo tempo que realça as caraterísticas petrográficas. Os resultados não só aprofundam a compreensão da geologia da área, como também contribuem para o conhecimento mais alargado do Complexo Basáltico da Nigéria.

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