华北地块（古板块）北缘包括了华北克拉通北缘及白乃庙岛弧岩带两个构造单元，二者之间被白云鄂博-赤峰-开原断裂（华北克拉通北缘断裂）所分开。白乃庙岛弧岩带记录了早古生代-晚古生代早期华北地块北缘的陆缘增生过程。已有的研究结果表明，华北地块北缘的早古生代-晚古生代初期的陆缘增生可能与白乃庙岛弧岩带与华北克拉通北缘的弧-陆碰撞有关。但目前关于白乃庙岛弧岩带的构造属性还有很大争议；关于白乃庙岛弧岩带向华北克拉通北缘的增生机制及过程还不清楚。本项目拟通过构造地质学、火成岩岩石学与地球化学及碎屑锆石分析等多学科方法，对华北地块北缘中段华北克拉通北缘断裂带的性质、白乃庙岛弧岩带的构造属性及其与华北克拉通北缘的拼贴过程及机制进行研究，确定古生代期间华北地块北缘陆缘的增生过程及机制。此研究成果对于认识华北地块北缘陆缘性质转换及中亚巨型增生型造山带的形成机制具有重要意义。

The northern margin of the North China Block (NCB or North China Paleoplate) south to the Solonker suture consists of two tectonic units including the Bainaimiao arc terrain and the northern margin of the North China Craton (NCC), which were seperated by the Bayan Obo-Chifeng-Kaiyuan fault (boundary fault of the northern margin of the NCC). The Bainaimiao arc terrain, which recorded the Early Paleozoic-earliest Late Paleozoic accretion history of the northern NCB, was probablly accreted to the northern margin of the NCC by arc-continental collision during Early Paleozoic to earliest Lare Paleozoic as revealed as recent researches. However, tectonic affinity of the Bainaimiao arc terrain is highly conversal, and the mechanism and processes of accretion of the Bainaimiao arc terrain to the northern magin of the NCC is still poorly understood. In this research, multiple methods including structural geology, igneous petrology, geochemistry and detrital zircon geochronology will be used to study the nature and deformation of the Bayan Obo-Chifeng fault, tectonic affinity of the Bainaimiao arc terrain and the mechanism and processes of attachment of the Bainaimiao arc terrain to the northern magin of the NCC during the Early Paleozoic to earliest Late Paleozoic in order to better understanding the mechanism and processes of continental accretion of the northern margin of the NCB. The results are of great significance for understangding the continental margin transition in the northern margin of the NCB from passive to active continental margins during the latest Early Paleozoic to Late Paleozoic as well as the accretion processes of the huge Central Asian Orogenic Belt.