山东省齐河—禹城富铁矿勘查区工作进展及对策

Prospecting Progresses and Countermeasures of Qihe-Yucheng Rich Iron Ore Exploration Area in Shandong Province

摘要:

近年来，在山东省齐河—禹城地区矽卡岩型铁矿勘查工作取得了重大突破，该勘查区内相继发现了李屯、大张和潘店矽卡岩型铁矿床，同时科研工作也取得了较大进展。本文在全面收集和综合分析区内矿产勘查和科研成果的基础上，对该区以往勘查经验和研究现状进行总结，分析该区勘查研究过程中主要制约因素和亟待解决的关键问题。通过对制约因素和关键问题开展对策研究，为今后该区铁矿勘查工作提供借鉴。通过分析表明该区矽卡岩型铁矿的成矿地质体（即燕山晚期中基性侵入岩）应属于沂南序列。勘查区内深部地质体三维空间特征精细刻画、深部地质体控矿构造研究、物探数据深度解译、矿产勘查空间拓展、铁矿成矿规律和矿体赋存规律深入研究等多个方面将是下一步勘查研究工作的重点，加强对上述方面的研究有助于促进区内铁矿勘查工作顺利开展。在加强对物探异常西半环已发现矿体的勘查和类似异常的查证工作的同时，对物探异常东半环加强勘查研究工作对于拓展整个齐河—禹城地区矽卡岩型铁矿的勘查空间具有十分重要的意义。

Abstract:

In recent years, great breakthroughs have been made in the exploration of skarn type iron deposits in Qihe-Yucheng area in Shandong province. The skarn type iron deposits of Litun, Dazhang and Pandian have been discovered in the exploration area, and great progresses have been made in scientific research. Based on comprehensive collection and analysis of mineral exploration and scientific research achievements in the area, through analysis on previous exploration experiences and research, main restriction factors and key problems which should be solved in the process of exploration have been analyzed. The study on restrictive factors and key problems will provid some references for iron ore exploration in this area in the future. The metallogenic geological body of skarn type iron ore in the area (late Yanshanian intermediate basic intrusive rock) should belong to Yinan sequence. The next exploration and research work will focus on the fine description of three-dimensional spatial characteristics of deep geological bodies in the exploration area, the research on the ore controlling structure of the deep geological body, the deep interpretation of geophysical data, the expansion of mineral exploration space, in-depth research on the metallogenic regularity of iron ore and the occurrence regularity of ore body. Strengthening the research on the above aspects will help to promote the smooth development of iron ore exploration in the area. At the same time, it is of great significance to expand the exploration space of skarn type iron ore in the whole Qihe-Yucheng area to strengthen the exploration of the discovered ore bodies in the west half ring of geophysical anomaly and the verification of similar anomalies, and to increase the exploration and research work in the east half ring of geophysical anomaly.