Scoperta l’origine della strada di mattoni gialli nell’Oceano Pacifico

Il ritrovamento peculiare era stato riscontrato durante la prima esplorazione di vulcani sottomarini nella regione. I piloti E/V Nautilus durante una esplorazione delle Antiche Montagne Sottomarine di Liliʻuokalani Ridge hanno scoperto la “strada” lo scorso anno

In un filmato diffuso dagli esperti, il team tenta di prelevare dei campioni con l’aiuto di un braccio robotico. Grazie a loro abile uso del robot, gli esperti hanno avuto l’opportunità di ispezionare più da vicino un ammasso di crosta di ferromanganese , un deposito minerale sedimentario marino costituito da ossidi di ferro e manganese. La muratura era in realtà il risultato di geologia vulcanica che ha fratturato la roccia in modo curiosamente uniforme. “Quella che può sembrare una ‘strada di mattoni gialli’ verso la mitica città di Atlantide è in realtà un esempio di antica geologia vulcanica!” ha spiegato EVNautilus. Il team ha identificato la roccia come ialoclastite, un tipo di roccia vulcanica trovata dove le eruzioni ad alta energia hanno depositato frammenti nel fondo del mare. Il motivo per cui sembra così simile a un mattone è che si è fratturato a causa del ripetuto riscaldamento e raffreddamento mentre si verificavano ulteriori eruzioni nella regione.

21 thoughts on “Scoperta l’origine della strada di mattoni gialli nell’Oceano Pacifico

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