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Sedimentazione attuale dell’estuario del Rio Formoso - PE (Brasile)

Sedimentazione attuale dell’estuario del Rio Formoso - PE (Brasile)

Luciana Dantas dos Santos / Roberto Lima Barcellos

38,81 €
IVA incluido
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2024
Materia
Ciencias de la tierra/geociencias
ISBN:
9786208402662
38,81 €
IVA incluido
Disponible

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Questo libro si concentra sulla ricerca oceanografica condotta nell’estuario del fiume Formoso (08°39’S/35°10’W) e finalizzata a comprendere le dinamiche stagionali dei processi sedimentologici e geochimici nell’estuario. Un totale di 48 campioni di sedimento sono stati raccolti nel settembre 2014 e nel marzo 2015. Sono state effettuate analisi granulometriche e geochimiche: MOT, CaCO3, TOC, PT, PO e PI ed è stato calcolato il rapporto elementare C/P. I sedimenti erano prevalentemente sabbiosi e poco differenziati in entrambi i periodi. La frazione ghiaiosa rappresentava una piccola parte dei campioni totali e la maggior parte della frazione fangosa si trovava a monte dell’estuario. Per quanto riguarda il rapporto C/P, si sono registrati valori dominanti superiori a 300, indicando l’origine continentale della materia organica. Stagionalmente, si è registrato un aumento dei parametri granulazione, grado di selezione e TOC, e una diminuzione dei parametri CaCO3, MOT, PT, PO e PI. Si può notare che l’estuario è soggetto alle azioni antropiche che lo circondano. Ha mostrato anomalie nella distribuzione spaziale del comportamento della materia organica nelle aree adiacenti agli stagni per gamberi e sotto l’influenza delle acque reflue provenienti dalle aree urbane della regione.

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Otros libros del autor

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