The Application Of Geogas Prospecting And X-ray Fluorescence In The Long Profile Of Qi Tianling And Its Significance Of Prospecting

Located in the south of the Qitianling pluton and its adjacent area is ourcountry’s important nonferrous metal ore district, surrounding rock has found anumber of super large nonferrous metal deposits, including the Huangshaping Leadzinc mine, Baoshan silver lead zinc mine, Xintianling tungsten tin polymetallic oredeposit, the Yaogangxian tungsten tin zinc polymetallic ore, combining consideringthe geological conditions and geological conditions, the region is the key area worthyof further prospecting work.In the National863project "high precision spectroscopy detector research"(project number:2012AA061803)"and the National Natural Science Fund Project:"gas field of concealed geological body and fracture "(project number:41074094) theproject support, laid off the profile which stride across the west of Huang Sha Ping tothe East of Liao Jia Wan, full-length60km, long profile along135°direction throughthe Qitianling pluton, the soil X fluorescence measurement and rapid geogas survey,the relevant work, for further ore prospecting target area.In the Qitianling profile, total completed geogas survey and soil X fluorescencemeasurement,393measurement points among them, each measuring point geogasmeasurement information content of38kinds of elements, soil X fluorescencemeasurements obtained information content of12elements. According to the gasmeasurement data, with average value plus three times the standard deviation as thethreshold, combined with soil X fluorescence measurement data, in the Qitianlingprofile captured seven anomaly area.In this paper, on the basis of extensive investigation, the development principleand method of dynamic analysis of Geogas measurement and X fluorescencemeasurement technology are reviewed. According to the various elements in geogasmeasurement and fast X fluorescence measurements to obtain the Qitianling sectionto carry out data, through the analysis of the abnormal elements anomalies in the area,and the use of cluster analysis, factor analysis, correlation analysis and otherstatistical methods to master the Qitianling mineralized concentration area of basiccharacteristics of mine often, established the earth chemical pattern ore anomaly inthe work area, the unknown exception analysis and judgment, and on the basis ofresearch model of anomaly elements, REE distribution pattern research, analysis of Geogas anomalies and known associated anomalies, and the formation anddistribution of gas field, complete the Qitianling long profile control prediction ofprospecting target area.This research obtains the following results:1.The value of measurement of profile elements Cu, Pb, Zn normalizedcumulative, basis the Cu+Pb+Zn value in the gas line to draw7abnormality area, Xfluorescence measurement divided into5anomalous zone. According to the knownore body at the top of the Huangshaping geogas, X fluorescence showed abnormal, inthe unknown area, the line above all showed abnormal, indicating that in this area,climate, X fluorescence measurement is an effective method for ore prospecting.2.By cluster analysis, factor analysis, correlation analysis and other multivariatestatistical analysis combined with theRelated geophysical and geochemical data and geological data, the basic grasp TianLingchang atmosphere and soil profile on ore caused anomaly characteristics.3.According to the located in Huangshaping Lead zinc mine at the top of the1(Ⅰ), climate and soil X light measurement anomaly, can generalize the HuangshapingLead-Zinc Deposit in the region in addition to Pb, Zn, Cu, As, W, Bi, Mn, Mo, Ni, Sn,Se can be used as the region indicator (ore) elements, basic features in measurementof abnormal X fluorescence is: Pb, Zn, Cu, As, Ce, Mn, Se showed significantabnormalities in the above the orebody, and has a good correlation.4.Located in the Huangshaping Lead-Zinc Ore2.4-2.8Km of3(II), abnormalarea, the geological condition and the Huang Shaping Pb Zn deposit location issimilar, is advantageous position formed Pb Zn ore, and3(II), abnormal regions andknown1(Ⅰ), abnormal area (Huangshaping Lead zinc mine) has basically the samethe geogas anomaly characteristics, at the same time, with abnormal characteristics ofX fluorescence measurement is consistent with the Huangshaping Lead zinc mine,Huangshaping Pb Zn deposit is to find favorable prospecting target area.5.In the abnormal area2,4, while the X fluorescence measurement and1abnormal also have a certain consistency, but these two anomalies in the geologycondition position differ obviously with known Huangshaping Lead zinc mine, so2,4abnormal area is evaluated for prospecting target district, still needs further study.Results5anomalies and geological conditions and the known Huangshaping Leadzinc ore anomalies have obvious differences, whether these abnormalities for othertypes of ore deposits indicate, still need to do further research work.6. This work not only for the Qitianling area further prospecting provides newprospecting target area, but also provide scientific basis for deep concealed deposits inother areas of application for geogas measurement and X fluorescence measurements.