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RAG (dar geologiya)

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RAG (dar geologiya), kafidai bo jinsi kuhi, mineral yo madan purshudai qishri Zamin. Dar natijai az yagon manba ba kafidahoi qishri Zamin vorid shudani magma u dar dokhili kafidaho az mahlulho (obhoi mineraldori zerizamini) tahshin shudani moddahoi minerali hosil meshavad. Raghoe niz vomekhurand, ki mahsuli prosessi metasomatizm buda, az du kanori kafidaho tul kashidaand. In guna Ragho az tasiri khimiyavii mahlulhoi haroratashon baland, ki dar dokhili kafidaho hamesha dar harakatand, ba vujud meoyand. Dar ayni hol az tasiri khimiyavii mahlulho baze mineralhoi jinshoi atrof hal shu­da, joi onhoro mineralhoi nav pur mekunand. Du tarzi joygirshavii Rag malum ast: baze Ragho qabathoi jinshoi kuhiro burida guzashta, bazei digarashon dar bayni qabatho joygir meshavand. Shaklhoi Rag niz gunogun ast: linzamonand, shokhamonand, turmonand, zina-zina va gayra. Gafsii Rag az chand mm to dahho metrro tashkil doda, tulash ba dahho va qatto sadho km merasad. Macalan, dar Kaliforniya Pagi tillodor ba masofai 200 km tul kashidaast. Bisyor konhoi metallhoi ranga, nodir va sanghoi qimatbaho bo Ragho aloqamandi dorand.

U. Olimov.

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