山东省东平—汶上地区铁矿床地质特征及成矿模式

Geological Characteristics and Metallogenic Model of Iron Deposit in Dongping—Wenshang Area in Shandong Province

摘要:

研究区为鲁西地区重要的成矿带——东平—汶上铁矿带，该铁矿带内已探明彭集、张家毛坦、化肥厂等多个大中型铁矿床，说明该成矿带具备优越的成矿地质条件及良好的找矿潜力。通过剖析近年来区内典型矿床的最新勘查成果，从矿床控矿地层、成矿时代、成矿物质来源、矿化阶段、矿体特征及物探异常等8个方面进行系统分析，开展了铁矿成矿规律研究；根据东平—汶上铁矿带的成矿时代、赋矿层位、含铁建造及岩石组合，结合成矿规律的分析，初步建立了“东汶式”铁矿床成矿模式。

Abstract:

Dongping—Wenshang iron ore belt is an important metallogenic belt in western Shandong province. A number of large and mediumsized iron deposits, such as Pengji, Zhangjiamaotan and Chemical fertilizer plant have been found in this area. It is showed that the metallogenic belt has favorable metallogenic conditions and good prospecting potential. Through analysis on the latest survey results from the main ore controlling strata of typical deposits in the region in recent years, such as ore controlling strata of ore deposit, metallogenic age, source of metallogenic materials, mineralization stage, ore body characteristics and geophysical anomalies, iron ore metallogenic regularity has been carried out. According to the ore bearing strata, iron formation and rock combination, combining with the analysis of metallogenic regularity, "Dongwen type" iron deposit metallogenic model has been established.