The Comparison And Application Of The Trace Silver Analysis Methods For The Regional Geochemical Samples

The zond of Xiao Dian Zi is locled in the Jiao-Liao-Tai Lung SAG and Li Jia off au interchange,Kai yuan-Cao Shi fault zone controlthe gold,silver,lead,zinc extend.The fracture zone is pregnant lead zinc ore and lots of gepchemical anomaly outcome results shows that this zone has good conditions of ore-forming conditions and prospect.This paper took the Xiao Dian Zi of 526 soil samples to teste,the 526 tested soil samples.Analytical work in accordance on ? pecification for geochemical prospecting?and related to the quality specification.It's analying tests for silver trace by emission spectrometry,graphite Furnace atomic absorption spectrometry,organic solvent extraction-flame Atom absorption three methods.The determination of ten State-level standards the relative standard deviation of 1.76%~8.5%.Explanation that these methods can precision and accuracy better.In the actual work of analysis the testing of 11 approved external monitoring samples percent of pass over 90%.And other indexes also satisfied in regional geochemistry(1:50,000) specification requirements.Thro?gh analying test results,It's showed 10 points outlier which exhibition that outliers are mainly located in the Northwest of the area and east and west.Combined with ore-forming geological conditions and attributes.Exception will be survey area was divided into three districts.The Western HT1,soulthen HT2 and Eastern HT3 three exceptions.The Eastern anomaly area dominated by silver,And concentration centers obviously has a certain size,outliers shows there are enrichment in local.Accompanied by enrichment of elements like lead,zinc and copper,and so on.Thro ? gh the validation of HT2 surface reveal anomalies HT2.1 abnormal occurrences has the sameas with ore body.The silver grade 196?g/g of TC0909 renching exposing 6th ore bodies.Outliers of HT2.2 mainly in the zinc,HT2.3 anomalies match as 5th ore,TC0906 trenching exposing 5th silver ore 245?g/g grade.In this paper,the results of the study for the geological prospecting provides an important theoretical basis and experimental basis,this has an important application value.