Geological Characteristics Of "Bian-stone" Deposit In Sibin County,Shandong Province And Its Origin

The study area is located in the southern part of Sishui County,Shandong Province,about 10 km to southeast of Sishui County.The administrative division is under the jurisdiction of Jinzhuang Town,Shengshui Town,Zhangzhang Town and Jihe Sub-district Office of Lishui County.After geological exploration in recent years,many “Bian-stone” deposits(points)have been discovered and evaluated in the study area.The proven meteorite mineral resources are 10.257 million tons,indicating the meteorite mineralization and geological conditions in the area are superior and the prospecting prospects are good.This paper colletted systematic data and related information,analyzed the geological characteristics of typical deposits,explored the genesis of the mineral deposits,metallogenic regularity and ore prospecting indicatorer and predicted the mineral resources based on the prospecting direction.Carrying out the work in a step-by-step according to the technical design established by the research,some achievements have been made as follows:(1)Based on the stratum,structure,magmatism,geophysical and geochemical anomalies characteristics,the paper has summaried the ore-forming geological background of Bian-stone in Sishui County;understood the ore-forming conditions.The characteristics of each mineralization were analyzed in terms of body and ore characteristics.(2)The ore-forming rules in the study area were summarized from the aspects of the ore body's plane distribution law and the relationship between the ore body and the strata.(3)According to the metallogenic age and mineralization horizon,the genesis of deposit are analyzied,the ore-forming rules and prospecting indicators are summarized.(4)From the stratum,structure,magmatic rocks,geophysics,geochemistry,etc.,the exploration marks of the study area are summarized,and the ore-forming geological conditions ore-bearing characteristics,ore quality,etc.of the deposit are ascertained.Through studying the genesis of the deposit,the exploration direction has been pointed and mineral resources of the deposit has been predicted for the regional exploitation and exploration of the deposits in similar areas.