According to the isotopic age data of inherited zircons in igneous and metamorphic rocks which occur at the surface and are derived from deep crust of the North China, Yangtze blocks and Qinling-Dabie orogenic belt, the paper is mainly reports some new information of Archean rocks and briefly discusses its geological significance.

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Any of a group of crystalline silicate mineral common in igneous and metamorphic rocks.

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A brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone.

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Any of a group of abundant rock-forming minerals occurring principally in igneous, plutonic, and some metamorphic rocks, and consisting of silicates of aluminum with potassium, sodium, calcium, and, rarely, barium.

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Any of a group of abundant rock - forming minerals occurring principally in igneous,plutonic,and some metamorphic rocks,and consisting of silicate s of aluminum with potassium,sodium,calcium,and,rarely,barium.

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