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投稿时间:2020-04-28 修订日期:2020-06-04
投稿时间:2020-04-28 修订日期:2020-06-04
中文摘要: 基于地面高精度磁法测量难以解决危机矿山深部找矿突破的问题,以井中三分量磁法测量为研究对象,结合王旺庄、侯家庄和南龙磁异常,分析了井中三分量磁法测量在深部找矿中的应用效果。研究结果表明,根据井中三分磁法测量结果,当矿体在观测孔以北时,△Z曲线呈反“S”型,当D大时,正值小于负值;若D很大时则呈似“C”型曲线;当D减小,正异常逐渐增加,而零值点伴随“D”的增大,相应有所抬高;当矿体在观测孔以南时,△Z曲线呈正“S”型,其特点与反“S”型相反;钻孔验证结果显示,在王旺庄CK8、CK9分别见到65.69m、58.47m的磁铁矿体,在侯家庄11A-4钻孔和南龙0-2孔中见到了预测磁铁矿体,找矿实践证明,井中三分磁法测量在深部找矿中具有良好的应用效果。
Abstract:The ground high-precision magnetic survey is difficult for deep ore exploration in exhausting mines. In this paper, aiming to understand the application effect of three-component magnetic survey in drills in deep prospecting, combining with the Wangwangzhuang, Houjiazhuang and Manlong magnetic anomalies, the three-component magnetic survey in drills were investigated. The results indicated that when orebodies were located in north of the observation holes, △Z curve occurred as a reverse "S" type. In addition, when D values was elevated, the positive value was less than the negative value. In contrast, if D values are very high, a c-shaped curve arose. When D values decreased, the positive anomalies gradually increased, but the zero value point increased with the increase of "D". When the orebodies were located in the south of the observation holes, △Z curve occurred as a positive "S" type, and its characteristics were opposite to the inverse "S" type. The results of drilling verification showed that magnetic orebodies in deep 65.69 m and 58.47 m were discovered in CK8 and CK9 in the Wangwangzhuang deposit. Moreover, in the Houjiazhuang and Nanlong deposits, magnetic orebodies were also discovered in 11A-4 drill and 0-2 drill, respectively. The ore prospecting practice proposed that the three-component magnetic method in drill has a good application effect in the deep ore exploration.
keywords: crisis mine deep prospecting Jinling iron ore three-component magnetic measurement magnetic anomaly
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基金项目:
作者 | 单位 | |
李令斌* | 山东正元地质资源勘查有限责任公司 | 986679748@qq.com |
Author Name | Affiliation | |
LI Lingbin | Shandong Zhengyuan Geological Resources Survey Co., Ltd. | 986679748@qq.com |
引用文本:
李令斌.井中三分量磁法测量在深部找矿中的应用——以金岭铁矿区磁异常解析为例[J].有色金属(矿山部分),2021,73(1):86-91.
LI Lingbin.Application of three-component magnetic method in drill for deep ore exploration: A case study of magnetic anomalies in the Jinling iron mining area[J].NONFERROUS METALS(Mining Section),2021,73(1):86-91.
李令斌.井中三分量磁法测量在深部找矿中的应用——以金岭铁矿区磁异常解析为例[J].有色金属(矿山部分),2021,73(1):86-91.
LI Lingbin.Application of three-component magnetic method in drill for deep ore exploration: A case study of magnetic anomalies in the Jinling iron mining area[J].NONFERROUS METALS(Mining Section),2021,73(1):86-91.