The primitive mantle-normalized PGE patterns belong to the positive slope type.
PGE对原始地幔标准化模式呈正斜率型。
Carbonaceous chondrite planetesimals were adsorbed on the mantle surface of the primitive earth, forming primitive carbon-rich areas.
碳质球粒陨石星子被吸积于原始地球上地幔表层，形成原始富碳区。
The primitive Pb was mainly derived from the lower crust and upper mantle;
矿床中的原 始铅主要来源于地壳深部或上地幔；
The primitive Pb was mainly derived from the lower crust and upper mantle;
矿床中的原 始铅主要来源于地壳深部或上地幔；
应用推荐