地质与勘探2018，Vol.54Issue(2)：219-229,11.
焦家金矿田Ⅰ号主矿体地质特征及找矿方向
Geological Characteristics and Prospecting Direction of No.ⅠMain Orebody in the Jiaojia Gold Deposit
摘要
Abstract
Previous exploration of main ore bodies in the Jiaojia gold deposit was conducted based on exploration area, which has certain limitation and cannot completely reveal the geological characteristics of the main ore bodies. Using the latest exploration results at ore-bearing elevation shallower than -2000 m in the Shaling ore area and Qianchen ore section, this work numbered the previous orebodies uniformly, and summarized the geological characteristics of No.Ⅰ main ore body which occurs in cataclasite that below the main fracture,which is the first time to break the concept of exploration ar-ea. It is found that the occurrence of geological body in deep is much gentler than in shallow which is controlled by the main fracture,and the thickness of cataclasite and the shape, scale, grade and thickness are closely related to the fault. The shallow orebody is more complex and smaller than in deep and the dip angle is steeper,while the deep orebody has gentler dip, and shows layer-like and large vein shape, with a large scale. The mineralization of hanging wall is not obvious,while that of foot wall is dominated by pyritization,which shows fine-grained disseminated-disseminated,thin vein and short vein-thin vein,net vein and short vein from inside to the outside.By summarizing the metallogenic regularity,it is predicted that the deep prospecting di-rection of the Jiaojia gold deposit is mainly concentrated in the deep of Ⅰ-3 main ore body and it is according to the pitch direction to predict the gold en-richment area, which is concentrated between the 384 line and 480 line, between -2000m and -3000m elevation, with 300 tons of predicted gold re-sources.关键词
焦家金矿田/地质特征/找矿方向/成矿规律/金矿富集区Key words
Jiaojia gold deposit/geological characteristics/prospecting direction/metallogenic regularity/gold enrichment area分类
天文与地球科学引用本文复制引用
宋国政,李山,闫春明,鲍中义,范家盟,刘彩杰,刘国栋,郭志峰..焦家金矿田Ⅰ号主矿体地质特征及找矿方向[J].地质与勘探,2018,54(2):219-229,11.基金项目
山东省地质勘查项目"山东莱州-龙口断裂带金矿资源潜力调查与找矿方向研究"(编号:鲁国土资字[2016]72号)和山东省第六地质矿产勘查院自筹勘查项目"山东省莱州市纱岭矿区金矿详查"资助. （编号:鲁国土资字[2016]72号）
