三山岛北部海域金矿勘查工作思路与实践

Thoughts and Practices on Gold Deposit Exploration in Northern Offshore of Sanshandao Area

摘要:

三山岛北部海域金矿床位于胶东西北部三山岛成矿带之中，为一严格受断裂构造控矿的超大型破碎带蚀变岩型金矿床。矿体全部赋存于滨海海域，具有规模大、延伸稳定、有用物质分布较均匀的特点。作为国家级首批整装勘查区的一部分，尤其是首次在浅海海域进行深部勘查，该区勘查工作受到了多方重视、关注和支持，在1年的时间里完成了主要靶区的详查工作。它首开我国浅海海域金矿勘查的先河，是在综合分析研究矿田成矿背景与找矿潜力的基础上开展的一次系统的、由预查开始直接完成详查的勘查活动，具有周期短、规模大、成果丰、效果好的特点，对我国以后海域固体矿产勘查工作具有一定的借鉴意义。

Abstract:

Gold deposit in northern offshore Sanshandao area locates in northeastern part of Sanshandao metallogenic belt in Jiaodong area. It is an super large fractural and altered type gold deposit. Ore bodies all occurred in offshore. It has the characteristics of large scale, good continuity and low grade variation. As part of national first monoblock exploration areas, especially being the first offshore deep exploration, exploration work has been paid more attention and support. Detailed survey work in major target areas have been finished in one year. It initiates offshore gold exploration in China, and is a systematic exploration shifting from reconnaissance to general exploration based on comprehensive analysis of ore field mineralization conditions and prospecting potentiality. The exploration work has short cycle, large scale, rich achievements and favorable effects. It will provide some references for solid metal exploration in the future