五台-太行辉绿岩岩墙群是我国华北地区的一种令人醒目的构造岩浆类型。本文通过野外和室内的一系列工作,首次对其岩石学、矿物学、地球化学、年代和构造等方面进行了较为系统的研究。一、分布位置岩墙群位于山西省北部和河北西部的五台山、恒山、太行山等地区(图1)。岩墙的分布区长250公里,宽130公里,出露面积达三万平方公里,整体呈北西-北北西向。岩墙群由几百条 Wutai - Taihang diabase dikes are a striking tectonic-magmatic type in North China. This paper, for the first time, conducts a systematic study of its petrology, mineralogy, geochemistry, age and structure through a series of field and indoor work. I. Location The dikes are located in Wutai Mountain, Hengshan Mountain and Taihang Mountain in the northern part of Shanxi Province and western Hebei Province (Figure 1). The distribution of dikes wall length of 250 km, 130 km wide, exposing an area of ​​30,000 square kilometers, the overall northwest - north-northwest. Rock wall group consists of hundreds