| The Laodaoling area is located in the southeastern part of Heilongjiang Province.The administrative division of the study area is under the jurisdiction of Linkou County,Boli County and Yilan County.The study area is 455 km~2.The area is a low hilly area.The overall terrain is high in the west and low in the east.The altitude is generally 150-700 meters,and the relative height difference is 100-200 meters.The terrain is not undulating,the ridge is gentle,and the bedrock is less exposed.The water system in the area is relatively developed and belongs to the Songhua River system.The sediments in the water system are relatively developed,and the thickness of the soil layer is not large.The area is suitable for water sediment measurement and soil measurement.The purpose of this study is based on the task of“The Longitudinal Survey of the Laodaoling Gold Polymetallic Mine in Boli County,Heilongjiang Province”issued by the Heilongjiang Provincial Department of Land and Resources.On the basis of sufficient collection of previous geological,geophysical and geochemical data,the gold polymetallic is the main attacking species.Through the measurement of 1:50,000water sediments,analysis test of Au,Ag,Cu,Pb,Zn,As,Sb,Bi,W,Mo,10elements,delineate the ore-forming elements and associated elements;combined with remote sensing geological interpretation,roughly identify the ore-forming geological background and ore-controlling factors in the study area;use large-scale soil geochemical measurements,geological,physicalexploration and trenchingengineering,verifying the anomalies of water-sedimentary sediments with prospecting potential,dividing into mineral prospecting areas,and delineating ore bodies;evaluating the potential of gold polymetallic ore resources in the study area.The Heilongjiang Geological Survey and Research Institute conducted a1:250,000 regional geochemical exploration work using mature geochemical exploration methods in the area(forest swamp landscape area),and delineated a group of gold-polymetallic prospecting prospects in this area.Exploring the anomaly,this area is considered to be an important gold,copper and iron polymetallic mineralization prospect.Based on the study of predecessors’data,a prospective survey was conducted in the area.It is mainly based on the measurement of 1:50,000water sediments and the 1:20,000 soil geochemical measurement method.It mainly seeks gold and copper resources,taking into account other minerals,and seeks new breakthroughs for prospecting work.Through the work and research from 2014 to 2015,the geochemical data of1:50,000 water system sediments were obtained,and Au,Ag,As,Sb,Bi,Cu,Pb,Zn were delineated in the study area.40,W,Mo combination abnormalities.Through the abnormal investigation of the study area,50 soil geochemical comprehensive anomalies were delineated.Through the surface engineering verification of the main soil anomalies,four strips of peacock and petrochemical belts were delineated,and seven copper ore bodies,seven copper mineralized bodies and two gold mineralized bodies were circled.There are 1 prospecting area for secondary prospecting of Au,Cu and Fe,and 3 prospecting areas for copper and gold deposits.Through this research work,a new understanding of the ore-forming geological environment and geophysical and geochemical characteristics of the study area has been obtained,which proves that the method of measuring sediments in the water system is a very effective means for geological prospecting.Through the abnormal verification work,the area is considered to be a favorable target area for finding copper and gold mines,which has made certain breakthroughs in the exploration of mineral resources. |
PDF Full Text Request