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Radon Application To Fractal And Prospecting Buried Faults And Based On The Measurement Methods

Posted on:2015-12-07Degree:MasterType:Thesis
Country:ChinaCandidate:Y L ZhongFull Text:PDF
GTID:2180330467461466Subject:Nuclear Resources and nuclear exploration project
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DaShui gold district of Maqu County, Gansu Province which located in thewestern part of West Qinling fold belt and classified as Qinling-Qilian-KunlunMountains Central Orogenic Geological units. It is which southern border is Maqu-Nanping breaks and adjacent to Songpan-Ganzi fold belt. It is a large combine zoneof tectonic units. The NW-trending fault mineralization studies have been become themain object of study of the ore-controlling structure of regional research. Although theDaShui gold mine has been mined more than twenty years, but there are some blindspots between Geerke rock geological and Gongbei rock geological.It is obviouslyControled the ore body with faults, and has a better ore prospects. The radon gas and Geo gasappears to have a quick, low cost, low environmental requirements advantage is moresuitable for prospecting in the study area.Buried fault provide channel and places for the radon gas transport to the surface,.however, upward migration of radon gas is not the usual sense of the principle ofdiffusion, at first, the radon is a special kind of gas present in the subsurface, it cantransport to surface by Clusters though ground cracks or structural fissures, then instruction theburied fault, resolve issues related to geology. Therefore, radon measurements can be widely usedfaults exploration work, and the principle of making radon survey has a unique advantage inidentifying buried fault.The study analyzed the distribution of radon anomalies and ground elementswhose have similar trends, collect radon gas and geogas by use KJD-2000R Radonmonitor and air sampler in three measuring line. Using traditional statistical methodsto learn and factor analysis and cluster analysis to research on the relationshipbetween the elements with radon element. 1) The results of factor analysis shows: Rare element and heavy metals elementhave a close relationship with radon element. When compliance with inspection ofKMO and inspection of Bartllet, the highest correlation coefficient of0.8or more canbe achieved; A cord before cumulative variance values of the two matrices load factoraccounted for82.865%, B cord before cumulative variance values of the two matrices loadfactor accounted for84.765%, C cord before cumulative variance values of the two matrices loadfactor accounted for77.921%.2) Cluster analysis of the results shows that: When the distance factor greaterthan10which can be classified as three types of nine elements: heavy metals elementand radon element, rare element, Au; When the distance factor greater than15whichcan be classified as two types of nine elements: radon elelment, Au elelment, rareelement; heavy metals elementThe resulting proceeds under abnormal fractal element method in the study areawere higher than the lower limit of abnormal lower limit of the traditional methods,Make more precise the abnormal division and classification, Abnormal lower limitdetermined by the fractal method can effectively determine the relationship betweenthe buried fault and mineralization. Gold mineralization in the study area measuringline appears as star-shaped distribution, abnormal total area of approximately0.054square kilometers. Anomalous peak connection direction and Predict the direction offaults have a same result. The main ore-controlling factors in this study area which iscontrol by structural.
Keywords/Search Tags:Radon Measurement, Abnormal, Faults, Prospecti
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