山东莱芜鹿毛埠富铁矿地质特征及深部找矿方向研究

Study on Geological Characteristics and Deep Prospecting Direction of Lumaobu Iron Deposit in Laiwu City in Shandong Province

摘要:

本文主要分析了山东莱芜鹿毛埠地区的富铁矿成矿地质特征、矿体特征以及地球物理特征，并提出了深部找矿方向。研究发现，鹿毛埠地区富铁矿属于矽卡岩型，主要赋存于奥陶纪马家沟群碳酸盐岩与燕山晚期中、基性闪长岩体的接触带及其附近。矿体赋存于磁异常和重力异常的过渡带，并且重力值较高的区域。通过对莱芜鹿毛埠地区探矿工程分析，研究区内新发现铁矿体平均品位TFe 53.38%、mFe 51.28%，单样最高品位达61.30%，并确定了2个成矿远景区，本研究为该区的富铁矿资源勘查提供了技术支撑。

Abstract:

In this paper, geological characteristics of iron enrichment, ore body characteristics, and geophysical features of Lumaobu area in Laiwu city in Shandong province have been analyzed and studied, and the directions for deep prospecting has been put forward. It is found that rich iron deposits in Lumaobu area are of the skarn type, mainly occurring in contact zones between Ordovician Majiagou group carbonate rocks and Yanshanian late-stage mafic to intermediate diorite bodies and their vicinity. The ore bodies are located in the transition zones of magnetic and gravity anomalies and are also found in areas with higher gravity values. Through analysis on exploration projects in Laiwu Lumaobu area, newly discovered iron ore bodies have an average grade of TFe 53.38% and mFe 51.28%, with the highest single sample grade reaching 61.30%. Two prospective areas for mineralization have been identified. This study will provide technical support for the exploration of rich iron ore resources in the region.