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Prezentare - GeoEcoMar

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Knocker I cu black wall. Aici se observa foarte bine zona de reactie – ca o<br />

coaja. Este produsul unor reactii metasomatice de schimb cu fluidele<br />

metamorfice si cu roca vecina. Conteaza vitezele de difuziune diferite ale<br />

diferitelor elemente (Na, Mg, Al) la aceleasi conditii de PT. Se formeaza astfel<br />

Actinot, Chlorit, Titanit, Turmalina, chiar si Glaucofan sau Omfacit.<br />

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