Abstract:The pegmatite veins in Jijika area of Sichuan province have the characteristics of large quantity and wide distribution on the surface of the earth. Through statistics of 498 pegmatite veins, it is indicated that the number of spodumene veins in the pegmatite body is more than 1/5, but the probability of reaching the above scale is only 0.42%. Therefore, according to traditional surface mapping, it is found that the exploration process of outburst exploration by mineralization outcrop—prospecting trench—deep drilling verification scale is usually easy to fall into a long cycle, high exploration cost and low success rate. In this paper, setting the discovery process of super large spodumite pegmatite of newly found No.3 Jiajika super large type spodumene pegmatite as an example, the importance of the ingenious combination of prospecting methods has been studied. In the process of prospecting the newly found No. 3 vein, the combination of large scale geological, geophysical and geochemical exploration methods has been used, and new methods and new tools have been used to test the working methods. Prospecting process has been set up as follows: geophysical property determination—geochemical property determination— prospect evaluation. Combining with Quaternary tracing source method in the surface cover area, the position of stone drilling has been fully determined, and the economic and effective prospecting effect can be achieved. It will provide some references for prospecting the same type of rare deposit regionally.
