地球化学分析资料也证明了它的存在。

Its existence was confirmed by geochemical data.

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研究成矿后变化的基本方法有：地质构造制图、地球化学分析和模拟实验。

The ore deposit geology is to study the ore forming process (genesis) as well as the post ore changes and modifications, so as to increase the probability of ore prediction.

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元素地球化学分析表明火山岩系具有同一岩浆源区，其形成以部分熔融方式为主。

Based on the analysis of element geochemistry, the volcanic rock series have same magma source and the formation of the rocks is mainly in the form of partial melting.

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