The Research On Metallogenic Settings About Molybdenum, Lead-zinc And Potential For Exploration Of Keshiketengqi, Inner Mongolia

Keshiketengqi of Inner Mongolia located on the margin of North China plate,belongs to Yanshannian metallogenic belt of Tuquan to Linxi.This region is abundant in polymetal and,by the study of its mineralizing geological background and the potential for exploration,we can find that it might be helpful for the further mineral exploration.Through the comprehensive study of both field practice and indoor analysis can we get the points as follow:This paper has found out the components of stratum in the research area and, according to the mutual contact and penetration of granite,it can be proved that granite of Yanshannian in the research region has intruded in Late Jurassic and Early Cretaceous,fold and faulted structure growth, NE and NW faults are main ore-controlling structure.The main mineralizing elements, Molybdenum,Lead-Zinc,with its k value ranging from 1.0 to 1.5,have the tendency of enrichment and will become Mineral once conditions permits.The analysis results of its CU indicates that the main mineralizing elements such as Molybdenum,Lead-Zinc,with their CU under 0.6,might become Mineral in an appropriate condition.On the basis of each mineralizing element's anomalous Lower Limit,six key geochimical anomalous areas could be found.In the granite of Pz layer,belongs to Late Jurassic and Early Cretaceous,the Clark value of elements such as Molybdenum,Lead-Zinc,is obviously large than those in Greater Higgnan Mountains, which indicates that Pz layer and granite are the main source of mineralization, NE and NW faults are the major ore-controlling structure for the study of Molybdenum,Lead-Zinc.By the comprehensive study of the typical Molybdenum,Lead-Zinc about its mineralizing environment and features in this region, we can get that the key indicator for exploration are as such:1. Keratite or Slate Pz layer can be the indirect indicator; 2. NE and NW faults are the major indicator for exploration.According to the study of mineralizing regularity in the research area,combining with the establishment of the mineralizing mode in Keshiketengqi, it can be defined as hydrothermal deposit.Combining the indicator of exploration with anomalous features of mineralizing elements, SanWoPu and XiGou anomalous areas could be viewed as the key target regions for the exploration of Molybdenum,Lead-Zinc and it has been proved that the two regions have a good potential for exploration.