摘要
在山东省齐河—禹城一带,选择航磁异常与区域重力异常套合地区,实施了大比例尺重磁测量,经钻探验证在该区首次发现了总厚度72.73m、全铁平均品位56.75%的厚大富磁铁矿,取得了地质找矿的重大新发现。矿体产于燕山晚期中-基性岩浆岩与奥陶纪马家沟群灰岩的接触带上,矿床成因为矽卡岩(接触交代)型磁铁矿床。该铁矿的发现是山东省近年来地质找矿的重大发现之一,预示在齐河—禹城地区进一步开展富铁矿找矿工作具有十分广阔的前景。
The large-scale gravity and magnetic survey was carried out in the area delineated jointly by magnetic anomaly and gravity anomaly in Qihe-Yucheng area of Shandong Province. The rich iron ore deposit with a total thickness of 72.73 m and a total iron grade of 56.75% were found for the first time and verified by drilling, which achieved a significant new discovery in geological prospecting. The orebodies which belong to skarn type magnetite were formed in the contact zones between late Yanshanian intermedite-basic magmatic rock and Ordovician limestone. The discovery of the iron ore deposit is one of the most important geological discoveries in recent years in Shandong Province, which opens up a very broad prospect for further development of rich iron ore exploration in Qihe-Yucheng area.
作者
朱裕振
周明磊
高志军
张心彬
ZHU Yuzhen;ZHOU Minglei;GAO Zhijun;ZHANG Xinbin(Shandong Provincial Research Institute of Coal Geology Planning and Exploration, Ji＇nan 250100, Shandong, China)
出处
《地质通报》
CAS
CSCD
北大核心
2018年第5期938-944,共7页
Geological Bulletin of China
基金
山东省地质勘查资金项目<山东省齐河县潘店地区铁矿调查评价>(编号:鲁勘字(2013)137号)
