Suining-Aba The Low Density Measures The Radon And The Geochemistry Field Research

The application investigate of gas radon perambulation geochemistry technology started with Canada in 1904. The US had in the mid-1950s to the 60s compares the successful application . It just started in our country and not use it abroad.Because the gas radon surbey technology is strict with gathering condition of sample and detection precision of apparatus equipment. After several dozens year endeavor until the recent 2-3 years, this kind of equipment is applied only then carries on the known oil-gas field the massive experimental study. We has made the preliminary progress. The predecessor to the radon geochemistry characteristic, the radon investigation method's principle, the radon in ore deposit origin mechanism, as well as using the radon technology in the understanding faulted structure activity, seeks for the ground water, to seek for aspect and so on mineral resource research to make some progresse.Song Lizhong do some research on the specialized layer of sandstone and pinch-lens reservoir study. In the sandstone layer on the dumping pinch-Rn found abnormal markedly improved, and gradually reduce the field, and the reservoirs are at the top of Rn anomaly is weak. This is in the sandstone reservoir lithology of the Department pointed out there is a transitional zone oil field water, pinch of sandstone layer of rock is only the deterioration of the line, due to physical deterioration, resulting in secondary migration of oil and gas in the process of displacement of the aquifer Resistance to change, in which the oil and gas can not be gathered. Therefore, the sandstone layer is not only pointed out the physical deterioration of the interface, but also the oil-water reservoir lithology border, but the oil-water contact is often difficult to be people's attention.Shi Junfa and Xiang Yunchuan, who by Mandlbrot coastline fractal model inspired by that since the geochemical anomalies have fractal characteristics, through their experimental verification of the geochemical anomalies scale invariance principle, and in the 2 km-180km range Most of the elements in different scales of self-similarity of characteristics. Wang Xueqiu, Chi Qinghua, Sun Hongwei have an example of the Tianshan Mountains east of the Gobi desert areas ultra-low-density geochemical survey and evaluation, the use of ultra-low-density geochemical methods can be reached quickly and effectively delineated large-scale ore deposit, or set strategic target area, Through geochemical surveys, has produced more than 30 elements geochemistry map, fill in parts of the eastern Tianshan geochemical blank, the new found vision of Cu, Au, U and W unusual for more than 10, and found there three eastern Tianshan Cu Anomaly zone, with the North East Tianshan, in the zone and South zone, which Tsuchiya Huangshan copper and copper-nickel mine are located in the zone. IPR protection of newly discovered copper mine located in the south zone, the northern zone also need to be further confirmed, I believe that the discovery of these anomalies in the future the entire eastern Tianshan mineral exploration of the strategic plan is of great significance.L Pizzino, P Burrato, F Quattrocchi and G Valensise, they February 5, 1783 earthquake Calabria in southern Italy as an example to study the deep geochemical characteristics of active faults, the use of groundwater radon anomaly, according to Lepeltier (1969) put the graphic method, the brittle deformation (fault and rupture) in different environments on the distribution of radon dissolved the impact of the identification and assessment. Slope of the frequency of change and accumulation of radon on the map part of a straight line can help determine the scope of background values, pollution and identify specific geological structure and process-related samples to identify abnormalities.But for a large block, for example, more than 1,000 kilometers, using high-density measurement of radon gas in the not too realistic, high-cost, low-density test should be used radon. With ultra-low-density geochemical measurement method, can quickly grasp the overall situation, identify regional metallogenic belt of geochemical anomalies characteristic, and then a long-term target of further study, exploration target gradually reduced, thereby gradually approaching deposits, It must be pointed out is that we are not saying that the direct use of this approach to prospecting and geochemical survey results based on this, the abnormal area encryption sampling, step by step approach deposits, compared to the beginning of this line of thought will be focused deposit, The cost-effectiveness is much higher.The present paper first discussed the low density to measure that the radon therationale, according to the geochemical anomaly the scale invariability, the union massive geologist's practice had proven this theory's accuracy, myself take this theory as the premise, applied it in the low density measures the radon, carried on with the topic-based group from the Suining - pa adopts 2 kilometers to measure that a spot the method, has gathered 225 data, through to the data processing, unified local the geological background, the success confirmation this theory accuracy, not only tallied with the local geological background is very good, moreover also had the new breakthrough, explained regarding one bigThe body, the low density measured that the radon is feasible, advanced. What is the Geochemical Abnormal Scale invariance? The so-called scaling is unit of measurement, scale invariance or scale-free, that is, the object of the study has nothing to do with the scale, that is the object of the study conducted zoom in or out, from the shape of the object! Complexity! Irregular Sexual and other characteristics will not change. Tongsudeshuo, if we use a magnifying glass to observe the object, regardless of how changes in magnification to see the situation is the same, from the observation that the images could not be judged by the magnifying glass used in multiples. Scale invariance with the object known as fractal. Under normal circumstances, the self-similarity will be more complicated form of expression, and not necessarily a certain multiple of local Larger after a brief and the overall total coincidence, often called the statistical sense of the self-similarity. Since the similarity of the characteristics is usually exist in a certain range, known as the scope of this scale-free interval.The result showed that and the stratum dividing line place radon's density isoften high regarding the fault place, simultaneously the radon density's height has also reflected the oil gas center and the water-oil interface radon characteristic, simultaneously through to radon frequency accumulation distribution map, may also carry on the analysis to the underground fluid active condition, the development radon in geological prospecting application scope.