Analysis Of Metallogenic Conditions Of Majiawa Iron Ore In Zhuolu,Hebei Province

The research area of Majia Wa Iron is located in the east of Majia Wa village,Zhuolu County,Hebei Province.Area tectonic position is Sino-Korean paraplatform,Yanshan platform fold belt,Jundushan magmatic belt,the engagement of Large Slant Henan block and Badaling Kong fold bundle.In this paper,the geological characteristics,geophysical characteristics and geochemical characteristics of the study area are analyzed,and the metallogenic conditions are summarized.The study achieved the following results:1.By 1?10000 soil geochemical survey,delineation of Ag-Cu-Zn and Fe-Mn two types of anomalies.The Ag-Cu-Zn comprehensive anomaly strength is not great,and the distribution is consistent with carbonaceous slate,analysts believe that it is mainly caused by carbonaceous slate.Although the Fe-Mn abnormal strength is not great,but its distribution along the contact zone in the acidic magmatic rocks and carbonate rocks,with low resistivity and high chargeability anomaly zone and electrical sounding anomalies coincide fit representing well,belonging to the good ore prospecting geochemical anomalies.2.Through 1: 10000 IP scanning work to identify the study area to the optic polarization rate,distribution characteristics of apparent resistivity delineated low resistance and high polarization IP abnormalities JD-1 anomaly and JD-2 anomaly,JD-1 abnormal optic polarization changes in the rate of 5% ~ 18%,this anomaly is presumed to be caused by the contact zone of the rock and the inner mineralized bodies.JD-2 abnormal optic polarization ranged from 18% to 45%,larger amplitude and the anomaly is located mainly in Xiamaling Group sandstone and slate in the northern part of the study area,suggesting that the high value anomaly is mainly caused by a carbonaceous slate and carbonaceous sedimentary.3.The JD-1 abnormal optic polarization changes in the rate of 5% ~ 18%,mainly located in the central Zhang Xia group oolitic limestone and Xiamaling Group sandstone and neutral diorite rock contact zone,the contact zone are widely developed in hornfels and skarnization,and through the large power IP sounding work found,in the vertical(depth)the JDC-1 and JDC-2 two anomalous bodies are distributed,geophysical characteristics consistent with the iron ore of adjacent area,and therefore that the present area of JD-1 anomaly zone is looking for skarn rock type magnetite and nonferrous metal mine good target area.