摘要
谷山矿区位于鲁西地区尼山凸起的南缘,紧邻枣庄断裂,为苍峄铁矿带西延部分。该区为第四系覆盖,通过高精度磁法和井中三分量磁测等物探方法,圈定2个磁异常。对异常剖面进行2D反演,推测C2磁异常为含磁铁矿较低的岩体引起,C1磁异常为磁铁矿体引起。经过钻探验证,C2磁异常处磁性体为含磁铁矿变辉石角闪石岩。C1磁异常为赋存于泰山岩群山草峪组中磁铁矿体。根据区内以及邻区的见矿情况结合磁异常特征分析,谷山矿区具有良好的找矿前景。
Gushan mining area is located in the southern edge of Nishan uplift,and close to Zaozhuang fault.It is the western extension of Cangyi iron ore belt.This area is covered by Quaternary.By using high-precision magnetic method and three component magnetic survey in the well,two magnetic anomalies have been circled.Through 2D inversion on the abnormal section,it is inferred that C2 is caused by the rock mass with low magnetite content and C1 is caused by the magnetite ore body.Through drilling verification,the magnetic body at C2 is amphibolite rock containing magnetite and augite.C1 is the magnetite ore body in Shancaoyu formation of Taishan group.According to the ore occurrences in the area and adjacent areas and the analysis of magnetic anomaly characteristics,Gushan mining area has good ore prospecting prospects.
作者
张斌
张海衡
唐荣慧
周强
王东平
刘伟
马伟
ZHANG Bin;ZHANG Haiheng;TANG Ronghui;ZHOU Qiang;WANG Dongping;LIU Wei;MA Wei(Shandong Geophysical and Geochemical Exploration Institute,Shandong Technology Research Center of Geological Exploration,Shandong Engineering Laboratory of Soil Geochemistry,Shandong Ji'nan 250013,China;Zhengzhou Technology and Business University,He'nan Zhengzhou 451400,China;Shandong Zhengyuan Construction Engineer Co.,Ltd.Ji'nan Branch,Shandong Ji'nan 250101,China)
出处
《山东国土资源》
2023年第1期23-29,共7页
Shandong Land and Resources
基金
山东省地质勘查项目,山东省枣庄市市中区谷山地区铁矿普查(续作),编号:鲁勘字[2013]59号。
关键词
谷山铁矿
磁异常反演
三分量测井
找矿前景
鲁西地区
Magnetic anomaly inversion
three component logging
prospecting potential
Gushan iron deposit
Luxi area
