在对李子园地区碎石子、沈家沟、宽沟、尖草湾矿床野外地质特征进行了详细研究的基础上，结合室内岩矿鉴定、成岩成矿年代学、成矿流体、稳定同位素研究，查明研究区存在两期重要的成矿作用，早期形成与韧性剪切作用有关的金矿床，晚期形成与闪长玢岩有关的斑岩型-蚀变岩型金矿床。两期成矿作用在不同空间位置存在不同程度的叠加成矿作用，强烈的叠加成矿不仅改变了矿石结构，矿体方向，同时使矿石品位大幅度提高。斑岩岩株所在的北西向韧性剪切带、北东向次级构造带是找矿的重点区域。研究成果不仅为区域增添了新的矿床类型，为区域成矿规律研究提供了新的资料，同时指明了本区找矿方向，实现了找矿的突破。
This paper,based on thorough study on geological characteristics of Suishizi ,Shenjiagou,Kuangou, Jiancaowan gold deposits in Liziyuan area ,together with the indoor study on rock-mineral determination ,rock-forming and ore-forming chronology ,ore-forming fluids and stable isotopes ,identifies that there existed two important ore-form-ing events;the early stage gold deposits are related with the ductile shearing;the late formations are porphyry-altered gold deposits related to the diorite porphyrite .The two mineralizations overlap in varying degrees in different locations , and strong overlaps not only changed ore textures and orebody trends ,but also significantly improved ore grades .The northwest ductile shearing zone and northeast secondary structural belt are the promising areas for prospecting .The re-search findings add new types of ore deposits to the area ,provide data for regional ore-forming regularity study ,and al-so point out the prospecting direction of the area ,achieving prospecting breakthroughs .
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