辽北清源晚太古代（花岗）绿岩带，是华北克拉通前寒武纪最典型的绿岩带之一，其中以产出中国最古老的红透山火山岩型块状硫化物（VMS）铜锌矿床为特色。但近年同位素年代学研究表明，该绿岩带还发育同期的条带状（BIF）铁矿。对该绿岩带开展BIF铁矿、VMS铜锌矿时空和成因关系及其形成环境的研究就成为迫切需要解决的科学问题。本申请拟在详细绿岩带地质剖面、典型VMS铜锌矿床和BIF铁矿床研究的基础上，采用锆石U-Pb年代学方法，精确限定成岩成矿时代，建立精细的火山沉积、VMS、含铁硅质岩和BIF的演化序列；运用稀土元素、Nd-Hf和S-Fe同位素、矿物微区原位分析等方法，揭示火山岩-VMS-BIF的形成环境、成矿物质来源及成因联系。通过区域和矿床地质的综合分析，总结区域矿产成矿规律，建立区域VMS-BIF的构造-环境成矿模式。这不仅对指导区域找矿预测，而且对了解晚太古代古海洋环境均有重要的科学意义。

The Qingyuan Neoarchean granite-greenstone belt, located in the north of the Liaoning province, is one of the most representative greenstone belts in the North China Craton. It is characterized by the occurrence of the oldest Cu-Zn volcanic-hosted massive sulfide (VMS) deposits (e.g., the Hongtoushan deposit) in China. Recent geochronological data indicate that it also hosts a certain amount of Neoarchean BIF-type iron deposits. Hence, a detailed study on the enigmatic association of VMS deposits with BIFs should be conducted urgently. The key scientific issue is focused on the genetic relationship and depositional environment among them. In this regard, we will investigate the composition of typical VMS and BIF deposits in this belt. Based on detailed field survey, we present the U-Pb zircon age of the relevant supracrustal rocks, which places constraints on the formation age of these deposits, and construct the evolution sequence of volcanic and sedimentary rocks. In addition, major and trace elements whole-rock geochemical analyses and Nd-Hf-S-Fe isotopic analyses on the BIF, VMS, and associated lithologies, and in-situ trace elemental analyses on main minerals of the BIF and VMS, are also conducted in order to decipher the source of materials. Within the context of all these data, we give a comprehensive summary on the ore-forming regularity and finally set up a tectonic sedimentary model for the deposit association. This not only plays an important role in the ore prospecting, but also is significant for understanding the redox state and composition of Neoarchean seawater.