Analysis on the Orebody Characteristics and Mineralization Regularity of Tudui-Shawang Gold Deposit in Shandong Province

Tudui-Shawang gold deposit is located in the northeastern margin of Jiaolai basin,it is an important part of the Muping-Jimo metallogenic belt.The strata of the mine are mainly Paleoproterozoic Jingshan Group and Mesozoic Laiyang Group,fracture are well developed,and the major orebodies are produced in the early NE-trending secondary faults.Due to the controlling of the low-angle extensional fracture,the Tudui western metallogenic belt(Q2 belt),Tudui metallogenic belt(No.46 ore belt),Shawang metallgenic belt(No.28 ore belt) and Shawang eastern metallogenic belt are shown the characteristics of equidistant distribution,the strong and weak mineralization belt show interphase distribution,its space length is 500～700 m,the orebodies positioning of all metallogenic belt have the characteristics of northeast shallow and southwest depth.Though conducting field work,below the elevation of-500 m in the deep of Shawang ore belt maybe exist the third mineralization enrichment zone,so we should focus on the prospecting work of the area.The deposit genesis of the area belongs to middle-low temperature hydrothermal tectonic fissure filling type.