华北克拉通南缘中部晚古生代-早中生代的构造演化，因缺乏同时期的构造-岩浆-热事件的记录一直不清楚。然而，对华北克拉通南缘中部发育的晚古生代-早中生代沉积岩的物源研究为解决这一科学问题提供了可能。本项目拟通过华北克拉通南缘中部（郑州-三门峡地区）晚古生代-早中生代沉积岩中碎屑锆石LA-ICP-MS U-Pb年代学和微量元素以及原位Hf-O同位素的综合研究，查明华北克拉通南缘中部晚古生代-早中生代地层的沉积时限和碎屑沉积物的物源属性，并结合相邻地区的构造演化历史，探讨华北克拉通南缘中部该时期对古亚洲洋南向俯冲和北秦岭及扬子克拉通北向俯冲和拼贴作用的沉积响应，最终揭示华北克拉通南缘中部晚古生代-早中生代的构造演化。

The Late Paleozoic to Early Mesozoic tectonic evolution in the central section of the southern margin of the North China Craton has been unclear because of the lack of Late Paleozoic to Early Mesozoic tectonic-magmatic-thermal events. However, the provenance of the Late Paleozoic-Early Mesozoic strata within the central section of the southern margin of the North China Craton provides a possibility for us to solve this problem. Therefore, this program studies the depositional ages and provenance of the Late Paleozoic-Early Mesozoic strata within the central section of the southern margin of the North China Craton (Zhengzhou-Sanmenxia Area) by using LA-ICP-MS U-Pb dating, trace elements, and in situ Hf-O isotope data of detrital zircons from them. These data, together with regional tectonic analysis, will investigate sedimentary response to southward subduction of the Paleo-Asian Ocean and northward subduction of the North Qinling and Yangtze craton, finally revealing the Late Paleozoic to Early Mesozoic tectonic evolution in the central section of the southern margin of the North China Craton.