Discovery of a medium-scale tectonic altered rock type gold deposit(13.5 t)on the northeastern margin of Jiaolai Basin,Shandong Province,China and its new application of exploration direction  

作　　者：Liu-an Duan Yun-cheng Guo Xiao-meng Han Jian-tian Wang Peng-fei Zhao Li-peng Wang You-feng Wei 

机构地区：[1]Yantai Geological Survey Center of Coastal Zone,China Geological Survey,Yantai 264004,China [2]School of Mathematics and Physics,China University of Geosciences,Wuhan 430074,China

出　　处：《China Geology》2022年第3期543-545,共3页中国地质（英文）

基　　金：funded by the entitled“Exploration of Gold Resources in Northwest Jiaodong Area”(DD20208006)initiated by the China Geological Survey.

摘　　要：1.Objective The Qianchuiliu mining area is located on the northeastern margin of the Jiaolai Basin,Shandong Province,China.A series of gold deposits have been discovered around this area in recent years,such as the Liaoshang(super large;69 t),Xilaokou(large;31 t),Xijingkou(medium;11 t),and Guocheng(large;21 t)deposits,indicating favorable metallogenic geological conditions(Fig.1a).However,only a series of NE-trending veins(alteration zones)inclining southeastward instead of industrial-scale ore bodies have been discovered in the Qianchuiliu mining area since 1999 through a great deal of geological and geophysical exploration as well as a large amount of engineering verification through trenching,pitting,and drilling.This has created confusion about the prospecting in the study area.For the sake of further assessment of the gold metallogenic resource potential in the study area,geological surveys and drilling construction were carried out in 2020 based on previous work.During this period,a new EW-trending tectonic ore-controlling model was proposed to substitute for the former NE-trending tectonic ore-controlling model according to the distribution of the ore deposits nearby.Meanwhile,seven boreholes were deployed to verify the new model,expecting to achieve prospecting breakthroughs and progress.

关 键 词：NORTHEASTERN PROSPECTING MARGIN 

分 类 号：P618.51[天文地球—矿床学]