Inicio > Ciencias de la tierra, geografía, medioambiente, planificación > Ciencias de la tierra/geociencias > Geología y la litosfera > Petrologia e Geoquímica de algumas Rochas do Proterozoico Superior
Petrologia e Geoquímica de algumas Rochas do Proterozoico Superior

Petrologia e Geoquímica de algumas Rochas do Proterozoico Superior

El Said R. El Nashar / Said H. Abd El Rahim

54,06 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Geología y la litosfera
ISBN:
9786208588717
54,06 €
IVA incluido
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Sobre IBD

Foram investigadas algumas rochas do Proterozoico Superior (serpentinitos, metagabros-dioritos e granodioritos) da área de Homrit Waggat, no Deserto Central Oriental do Egito. Foram realizados parâmetros geológicos, petrográficos e petroquímicos para lançar alguma luz sobre a discussão da origem e evolução tectónica destas rochas. Os dados petrográficos e geoquímicos confirmam que os serpentinitos foram derivados de peridotitos do tipo alpino (harzburgite) e de rochas-mãe ultramáficas duníticas nos ofiolitos da Zona de Subducção Supra (SSZ), que estão associados a tholeiites do fundo do oceano. Os serpentinitos são semelhantes aos ophiolitos pan-africanos Bac-Arc no nordeste e leste de África. Enquanto que o metagabro-diorito e o granodiorito exibem uma afinidade calcária-alcalina e estão agrupados num ambiente de arco insular.

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Otros libros del autor

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