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Princip kosog presijecanja

Princip kosog presijecanja je princip u geologiji koji se odnosi na presijecanje sedimentnih slojeva.

On govori da ako dajk presijeca sediment, on mora biti mlađi.

Fotografija prikazuje jako dobar primjer kosog presijecanja. Svjetlo siva intruzija se nalazi u Švedskoj. Presječena je bijelom intruzijom (pegmatit), koja je presječena crnom intruzijom (diorit). Kako je crna intruzija cijela (nije presječena nikakvom intruzijom), ona je najmlađa. Bijela intruzija je druga najmlađa jer je presječena crnom intruzijom, ali ona presjeca svjetlo sivu intruziju. Svjetlo siva intruzija je najstarija jer je presječena bijelom i crnom intruzijom.

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