Mot so dac diem tieu hinh vang bieu sinh dai khoang hoa Kim Boi-Ba Vi (Shapetypical characteristics of supergene gold in mineralization of Kim Boi -Ba Vi zone)
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Mot so dac diem tieu hinh vang bieu sinh dai khoang hoa Kim Boi-Ba Vi (Shapetypical characteristics of supergene gold in mineralization of Kim Boi -Ba Vi zone)