what do you mean by primary rocks explain the rock cycle
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Primary rocks (geol.) a term early used for rocks supposed to have been first formed, being crystalline and containing no organic remains, as granite, gneiss, etc.; – called also primitive rocks. The terms Secondary, Tertiary, and Quaternary rocks have also been used in like manner, but of these the last two only are now in use.
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Primary rocks are term in geology that refers to crystalline rock formed first in geologic time , containing no organic remaims such as granite , gneiss and schist as well as igneous and magmatic formations from all ages .
The rock cycle :
if the rock begins as a metamorphic rock then it can be turned into magma which eventually becomes an ingeneous rock or it can be brought up to the surface of earth and broken down into sediment to become a sedimentary rock
see the above picture you can understand even more.
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