• The primitive Pb was mainly derived from the lower crust and upper mantle;

    矿床中的 始铅主要来源于地壳深部或上地幔;

    youdao

  • The primitive Pb was mainly derived from the lower crust and upper mantle;

    矿床中的 始铅主要来源于地壳深部或上地幔;

    youdao

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