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胶西北大尹格庄金矿区伽玛能谱法找矿预测
- 作者：
- 刘云杰|李晓英|向胤合|周鑫|邹艳红|王杜涛|杨斌
- 作者单位：
- 招金矿业股份有限公司|招金矿业股份有限公司|中南大学地球科学与信息物理学院&有色金属成矿预测与地质环境监测教育部重点实验室|中南大学地球科学与信息物理学院&有色金属成矿预测与地质环境监测教育部重点实验室|招金矿业股份有限公司|中南大学地球科学与信息物理学院&有色金属成矿预测与地质环境监测教育部重点实验室
基金项目：
- 国家自然科学基金项目（41872249）；国家重点研发计划课题（2017YFC0601503）
详细信息：
- 作者简介：
- 刘云杰（1969—），男，山东烟台人，高级工程师，从事矿山地质、采矿和管理工作；山东省招远市温泉路118号，招金矿业股份有限公司，265400；E-mail：lmxzln@163.com
- 通讯作者：
- E-mail：928860563@qq.com，15115491500
- PDF下载
Prospecting prediction by gamma spectrometry in Dayingezhuang Gold District,Northwest Jiaodong Peninsula
- English Author：
- Zhaojin Mining Industry Co.,Ltd.|Zhaojin Mining Industry Co.,Ltd.|School of Geosciences and Infophysics,Central South University&Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring,Ministry of Education|School of Geosciences and Infophysics,Central South University&Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring,Ministry of Education|School of Geosciences and Infophysics,Central South University&Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring,Ministry of Education|Zhaojin Mining Industry Co.,Ltd.|School of Geosciences and Infophysics,Central South University&Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring,Ministry of Education
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
大尹格庄金矿区位于招平断裂带中段，是胶西北地区特大型金矿床之一。采用伽玛能谱法对大尹格庄金矿区Ⅰ号矿带的东侧和南侧进行测量，测区面积12 km2，测量网度120 m×50 m。结果显示：K、U、Th、总道异常具有显著空间套合性，规模最大的组合异常位于测区西部，与招平断裂带露头和Ⅰ号矿带南侧矿体位置相对应；测区中部组合异常规模次之，其北段对应Ⅰ号矿带深部矿体位置；测区东部组合异常规模相对较小，但仍有较高浓度和一定连续性。结合相关分析，厘定K异常和总道异常为伽玛能谱法主要找矿标志，U、Th异常为辅助找矿标志。结合构造地球化学异常，共圈定针对Ⅰ号矿带深部隐伏矿体的找矿靶区6处，A-1找矿靶区最先经钻探工程验证并见矿，表明伽玛能谱法在胶西北地区是探测深部隐伏矿体的有效方法。
关键词:
找矿预测；伽玛能谱法；Ⅰ号矿带；大尹格庄金矿区；招平断裂带
Abstract:
Dayingezhuang Gold District is located in the middle of Zhaoping fault zone and is a super large-scale gold deposit in Northwest Jiaodong Peninsula.Gamma spectrometry is used for survey in the east and south of Ore Zone Ⅰ in Dayingezhuang Gold District with the surveyed area 12 km2 and the grid 120 m×50 m.The results show that remarkable spatial superposition emerges among K,U,Th and total anomalies.The biggest composite anomaly appears in west of the survey area and corresponds to the outcrop of Zhaoping fault zone and the location of south ore bodies in the Ore Zone Ⅰ.The composite anomaly in the middle of the survey area is next,the north of which corresponds to the location of deep ore bodies in the Ore Zone Ⅰ.The composite anomaly in the east of the survey area is relatively small but has high anomaly concentrations and continuity.Based on related analysis,K and total anomalies are determined as the main prospecting marks for gamma spectrometry,U and Th anomalies are determined as the auxiliary prospecting marks.Based on the tectonic geochemical anomaly,6 prospecting target areas are delineated for concealed ore bodies deep in the Ore Zone Ⅰ.The prospecting target area A-1 was the first to be verified by drilling engineering and new gold ore bodies were discovered in it,indicating that gamma spectrometry is an effective means to prospect deep concealed ore bodies in Northwest Jiaodong Peninsula.
Keywords:
prospecting prediction;gamma spectrometry;Ore Zone Ⅰ;Dayingezhuang Gold District;Zhaoping fault zone
