Evidence from isotopic dating suggests that the greenstone belts vary considerably in age.

来自同位素年龄鉴定的证据指出,绿岩带在年龄上彼此变化相当大.

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The redelimited Jiapigou gold - concentrated area is composed of Archean granitoid - greenstone belts and high grade metamorphism areas.

重新界定的夹皮沟金矿集中区包括了太古宙花岗 - 绿岩带和高级变质区两个组成部分.

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In the world a lot of gold deposits occur in the early Precambrian greenstone belts.

早前寒武纪花岗岩—绿岩地体中赋存着丰富的金矿床.我国绿岩带主要分布在华北陆台,也是重要的含金岩系.

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