Analysis On The Geochemical Characteristics And Prospecting Of Qinghai Lotus Lake In North Sanjiang

Lotus Lake area is in the west of the northern part of Sanjiang metallogenic beltof Qinghai, and also is in the east of Tuotuohe ore concentration area. The author takethe regional geochemical project of “Qinghai1∶20million Lotus Lake、Hebuzhangcuo and so on five of regional geochemical” as a basis, extracted thegeochemical parameters, combined with the geological condition analyzedgeochemical characteristics and prospecting potential，and identified prospectingtargets. These will also provide basis for the future prospecting direction of this area.The main results as follows:1. In the study area, CaO, As, Sb, Sr, Cd, Pb,Hg has high abundance, highcalcium carbonate sedimentary environment significantly; Sb was significantly higherthan in the Tuotuohe area, AsSbPb low temperature ore bearing hydrothermal activityis strong; Sb, Hg,W,As, Bi, Cd, Ag, Zn, Pb, their variation coefficient is big,especially Sb, Hg high strength data, mineralization potential is great.2. In Middle Jurassic strata rock Pb, Sb, B, Li elements higher relative abundance,the formation has the ore source bed characteristics. At the same time, Sb, Hg, As, Ba,Bi, Cd variation coefficient is larger, especially Sb, Hg,4.68and2.67, indicating thelater hydrothermal activities were strong, and the extraction and enrichment of thehigh background elements formation.3. About40kinds of elements or oxide by type R mode factor analysis andcluster analysis, discusses the relationship between the various elements of thecombination of time space distribution characteristics. Among them, F3Zn, Pb, Sb, Cd(Ag, Mo, Cu, Bi) factor is low to moderate temperature hydrothermal mineralizationfactor the main mineralization, associated with the load element high range and spatialdistribution and fault, Jurassic intermediate acidic magmatic rock and stratum.4. From north to south in the study area is divided into Left rob-LanYunFeng,Knead emperor-Lotus Lake area and denier-three waves lake geochemical partition.North reflects a basic volcanic rock distribution in large area, high dispersioncharacteristics of Hg, As and Sb in low background, local formation and fracturestrength of abnormal, accompanied by related to basic rocks weak anomaly. Nearlyeast-west rupture range of the central there may be a Sb, Hg and other local abnormalhigh formation, and there is concealed or exposed acidic rock mass distribution. Thesouthern district of Jurassic high calcium carbonate environment significantly, Sb, Pb,Ag, Cd concentration, formation and fracture structure or local intermediate-acidmagmatism related to high strength.5.Framed42comprehensive anomaly, prospecting target area25(A grade2, Bgrade7，C grade16); Dividing left rob Lan Yunfeng, Emperor rub-dari andGaqiadirugang and Dan ma-swallow Lake four prospecting areas division. It is pointed out that the main ore-forming elements in Sb, Ag, Hg, Pb, Zn, W and Cu,further defined the prospecting direction.6.According to reflecting the basic rock and acid rock typical elementcombination, through the contrast accumulative geochemical map, preliminarydiscussion on the basic volcanic rocks and acidic magmatic rocks distribution, andgiving an inference to the main distribution of the lineament...