Abstract:

Along with the strategy of“opening”and “going globe”in Chinese mining industry，more and more solid mineral exploration projects must be abided by the quality-control system authoried by the western security commissions.This paper was sketched the basic controlling factors on the basis of analysis sample.The systematic quality-control methods for the basic assay samples during the solid mineral exploration are introduced minutely. During mineral deposit exploration，sampling quality is monitored through twin samples and field duplicate； preparation quality is assessed through coarse blanks and coarse duplicates which are inserted in sample batch prior to or during preparation.Assaying quality is monitored through SRMs，fine blanks，pulp duplicates that are inserted in the sample batch prior to assaying.By using the quality-control systematic methods for the bacic assay samples mentioned above to the practice of the guangdong Gaocheng Pb-Zn-Ag deposit detail exploration，the author’s procedures which include inserting various samples to monitor and assess sampling，preparation and assay quality as well as the assay results got，all have meet the QA/QC requirements of NI43-101 issued by Canadian securities.In addition，sample assay data was approved by independent consulting institutions.It has certain reference significance.

Key words: Solid mineral exploration, Sample analysis, Quality control