物探综合方法在青海赛什塘铜矿隐伏矿勘查中的应用

Application of integrated geophysical methods in the prediction of the buried orebodies in the Saishitang copper deposit, Qinghai Province

中文关键词: 铜矿  物探方法  隐伏找矿  赛什塘  青海

英文关键词: copper orebodies  geophysical methods  prospecting for buried orebodies  Saishitang  Qinghai

中文摘要:

      赛什塘铜矿区北部M2号磁异常属低缓异常,处于赛什塘背斜次一级背斜北侧,总体工作程度低。为了验证深部铜矿体,结合磁异常反演结果,通过瞬变电磁法低阻异常成果和可控源音频大地电磁法,推测出矿体深部位置,设计了ZK719验证孔。根据井中充电及井中磁测,综合研究,推测了矿体的侧伏方向,实施了后排孔, 对含铜矿化带进行了有效追索,发现了厚大铜矿体。物探综合找矿方法,对该区其他潜力地段开展深部隐伏找矿勘查,有重要的借鉴意义。

英文摘要:

      The magnetic anomaly M2 in the northern Saishitang copper deposit is a small-amplitude and low-gradient magnetic anomaly zone, which is located in the northern subsidiary anticline of the Saishitang anticline. In general, less exploration work has been done in the M2 anomalous area. In order to verify possible occurrence of the deep copper orebodies within M2 area, the test deep drilling was planned as ZK719 based on the magnetic inversion results, and outlined low resistivity area by TEM and controlled source audio magnetotelluric method. Based on the well charging well magnetic surveys and comprehensive analysis, the plunge direction of buried copper orebody was interpreted, and the back test drillhole was planned and drilled. As a result, the thick copper orebody was intersected. The founding of the buried copper orebody indicates that the application of integrated geophysical prospecting methods, is an effective approach to explore buried orebodies in the other potential areas.