陕西紫阳—镇坪一带辉绿岩型钛磁铁矿床分布较普遍,且具一定规模。该类矿床为我国一种特殊的铁矿类型,目前尚未正式被工业利用。本文试图将该类矿床的地质特征进行简要的总结,以供进一步研究时参考。一、辉绿岩的分布及一般特征陕西紫阳—镇坪一带加里东期基性辉长—辉绿岩分布较为集中,明显地受区域构造控制(图1)。主要集中于巴山断裂与红椿坝断裂之间。多呈岩床、岩墙、岩脉状北西—南东向 Diabase-type diamagnetism magnetite deposits are widespread in Ziyang-Zhenping, Shaanxi Province, with a certain scale. This type of deposit is a special type of iron ore in our country and has not yet been formally used by industry. This article attempts to summarize the geological characteristics of this type of deposit for further reference. 1. Distribution and General Characteristics of Diabase The distribution of gabbro-diabase in Zhalong-Zhenping area of ​​Shaanxi Province is more concentrated and obviously controlled by the regional structure (Figure 1). It is mainly concentrated between the Bashan fault and Hongchunba fault. Mostly rock bed, rock wall, veins northwest - South East