洛大铁矿为西秦岭地区的一个富菱铁矿矿床,该矿床包括查居、柴马山、翠古山三个矿段,它以品位富、自熔性好为特点。因此,认真总结该区地质资料,对西秦岭地区寻找同类型矿床具有一定的现实意义。本文根据我们的工作成果,并引用了我局第一和第五地质队有关资料,试图对该矿床地质特征及成因进行初步探讨,不当之处,请批评指正。 Lo Large Iron Ore is a Fu-ling iron ore deposit in the West Qinling area. The deposit includes the three coal mines in Chaju, Chama Mountain and Cuigu Mountain. It is characterized by rich taste and good self-flux. Therefore, it is of practical significance to conscientiously summarize the geological data of the area and find the same type of deposit in the West Qinling area. Based on the results of our work and quoting the relevant data of the first and fifth geological formations of the Bureau, this paper tries to make preliminary discussions on the geological characteristics and causes of the deposit. If there is any discrepancy, please criticize and correct it.