Geology-elemental Geochemical Characteristics And Prospecting Direction Of Jubaozhuang Silver Polymetallic Ore Deposit In Zhuozi County,Inner Mongolia

The administrative division of the research area is under the jurisdiction of Qixiaying town,Zhuozi county,Inner Mongolia autonomous region.The tectonic location is the uplift of the northern border of North China Block.The main tectonic pattern is represented by Daqingshan anticline,and the east-west tectonic system is the most significant structural system in the area.The Ag-Au-polymetallic deposit in the area is closely related to the structure,especially the fault structure directly provides space for the formation of the deposit and forms a good mineralization geological condition.This paper is supported by the Inner Mongolia Autonomous Region Zhuozi County Jubaozhuang Silver-polymetallic Deposit Census project,and focuses on the study of silver,gold,lead,zinc and other polymetallic minerals in the Jubaozhuang area,Based on the systematic analysis of the regional geological,geophysical,geochemical and typical deposit characteristics of the Jubaozhuang regional mineralization belt in Zhuozi county,Inner Mongolia.this paper discusses its metallogenic rules,analogizes the metallogenic background of the research area,and seeks for the direction of ore exploration.By means of geological mapping,soil geochemical exploration,magnetic prospecting,induced polarization and other means,and supplemented by surface engineering verification.This paper summarizes the metallogenic characteristics and ore-controlling factors of silver,gold,lead,zinc and other polymetallic minerals in the area,extracts ore-prospecting indicators,and provides prospecting areas and newly discovered mineral areas for further work.Comprehensive study showed that the genetic types of silver-polymetallic deposits in this area are contact metasomatic-hydrothermal type silver deposits related to marble of Wulashan Group in the middle Archean and fine-grained syenogranite in early Jurassic.The silver ore body occur as stratified,lamellar,lenticular,veined and cystic and controlled by the contact metamorphic zone of early Jurassic fine-grained syenogranite and marble and fault nearly east-west direction,nearly south-north direction and northwest direction.The strata,magmatic rocks,structure and present ore-prospecting and discovery conditions in the area are relatively good and have certain ore-prospecsting prospects.The study of soil geochemistry identifies 21 geochemical exploration composite anomalies(AP1-AP21)of Ag,As,Sb,W,Zn,Pb,Cu,Mo and Au in the research area,AP4,AP15 and AP19 in the anomalies are the key anomalies and favorable metallogenic areas in this research area with good degreeof element coincidences,high strength,obvious concentration zonation and the enrich main metallogenic elements.