| The Zha’ertaishan area,lied in middle-west area of Inner Mongolia,and is located in the east section of Langshan-Zha’ertaishan Mesoproterozoic rift zone of the northern margin of the North China Plate.In study of soil geochemical characteristics, select the volcanic rock samples and on the basis of abnormal height and rock type classification, in the correlation analysis,No.2-No.4 sample group eventually obtained Ag-Sb-As-W-Pb for near ore indicator elements, and associated Ag-As-Au gold, in deep and has a analysis of Pb Zn ore may.No.5-No.9 samples contrast can be confirmed that a large number of silver deposit occurs in the breccia, rhyolite and rhyodacite porphyry. In R-type cluster analysis that acidic volcanic rocks in the mining area of the main ore bearing rock type rhyolite porphyry and rhyolite porphyry. The main metallogenic stage points for sb, w, arsenic mineralization stage, Cu, Pb, Zn, Mo Cu Pb Zn mineralization stage and the main silver and gold mineralization stage, thus simplifying the orebody distribution trend and position,to further find mineral research provides a theoretical basis. Based on the conclusion as the foundation, convection of serpentinite, rhyolite porphyry and higher than the background value in the sample to carry on the factor analysis, obtained the main factor combination of elements, and draw the factor score plots, and geochemical characteristics of the ore deposit with ore forming prediction.In the study of geochemical characteristics of the ore deposit, through the collected samples of primary halo inductive calculated to draw vertical to plane isoline graph and longitudinal 50 m and 100 m depth contour map, and the points with index method to calculate the deposits in study area vertical zoning sequence, after finishing on multiple sequence synthesis, the final confirmation of vertical zonal sequence for Sb-Ag-Au-As-W-Pb-Bi-Zn-Mo-Cu. using sample abnormal value and background value ratio divided vertically basis with the sequence, obtained in the shallow area vertically with the sequence for Ag-Au-W-Sb-Cu- As-Bi-Zn-Mo-Pb,central vertical zoning sequence as the front-end Au-Ag-Sb-W-Cu-As-Bi-Mo-Zn-Pb.Au and Ag main ore-forming elements are ranked in all points with the sequence can think the ore bodies in the vertical direction by denudation degree is larger, and region are mainly located in the exploration line 13 to17 exploration line between, and extends to the southwest.Finally, the conclusion of the soil survey and the characteristics of the primary halo of the deposit and regional geological data, summed up the geochemical anomaly pattern ofthe mining area, and the depth of the mining area and regional metallogenic prediction.Has not appeared in the drilling of deep ore bodies found in the southwest of the rear halo elements appear in the zoning sequence of upper part of front halo elements zoning sequence of the tail, the reverse zoning obvious characteristics, combined with the vertical plane contour line graph and found it to deep and to the southwest of the main metallogenic elements Ag closed and larger, thus considered to have deep mineralization.In the region, high abnormal regional samples of factor analysis of factor combination of elements and ore body vertical zoning sequence distribution has a strong correlation, the three main factors are located in zoning sequence of posterior and middle, front, and according to the factor score map to delineate abnormal Area together with the sequence,in position as the basis to delineate 4 higher possible metallogenic area. |
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