天津蓟县地区金、钨、钼矿自然重砂与地球化学区域找矿方法效果

    A comparative study of the effects of natural heavy mineral prospecting and regional geochemical exploration for gold, tungsten and molybdenum deposits in Jixian County area, Tianjin

    • 摘要: 结合蓟县地区矿产分布特征,应用1∶20万自然重砂和1∶5万水系沉积物地球化学找矿方法,在蓟县地区金矿、钨矿、钼矿中进行区域找矿方法效果研究。研究其异常分布特征,发掘出了新的找矿信息。 研究发现,所圈出的自然重砂和地球化学异常能直接指示相应地质体的含矿性,特定矿物组合的自然重砂异常和区域地球化学异常在某些区域分布上比较吻合, 二者均具有找矿指示作用。

       

      Abstract: Based on the natural heavy mineral and geochemical research for the project of " Mineral Resources Potential Evaluation of Tianjin" in combination with the distribution characteristics of mineral resources in Jixian County area, the authors made a comparative study of the regional prospecting effects for gold, tungsten and molybdenum deposits in Jixian County area by 1∶200000 natural heavy mineral prospecting and 1∶50000 stream sediment survey, investigated the anomaly distribution characteristics, and discovered new prospecting information. The results show that anomalies delineated by these two methods can directly indicate the ore potential of the corresponding geological bodies. The natural heavy mineral anomaly and the regional geochemical anomaly are fairly consistent with each other for specific mineral assemblage, suggesting that these two kinds of anomalies can both play the guiding role in mineral exploration.

       

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