| 杨荣华.东秦岭卢氏地区构造控矿的地球化学判据[J].地质与勘探,2012,48(2):207-216 |
| 东秦岭卢氏地区构造控矿的地球化学判据 |
| Geochemical Evidence for Ore-Controlling Structure in the Lushi Area of East Qinling |
| 投稿时间：2010-06-23 修订日期：2011-07-06 |
| DOI： |
| 中文关键词: 地球化学异常 断裂构造控矿 东秦岭 卢氏地区 |
| 英文关键词: geochemical anomaly,ore-controlling fault structure,East Qinling,Lushi area |
| 基金项目:国土资源调查所属三门峡市卢氏地区重要成矿区带找矿方向研究(编号:中地调函[2005]51 号)资助 |
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| 中文摘要: |
| [摘 要]卢氏地区位于华北陆块与秦岭构造带结合部,具有独特的成矿构造地质背景,已发现矿床、矿点百余处。东秦岭中生代斑岩钼矿及相关的脉型铅锌矿具有明显断裂控矿特征,在断裂的交汇部位、断裂膨大处或拐折处通常可形成大矿和富矿。在卢氏地区这种构造控矿特征得到地球化学判据的支持,水系沉积物测量表明,钨、钼、铅、锌等地球化学异常规模大、强度高,清晰的分带和明显的浓集中心都与区域断裂构造系统有着密切的相依关系。这种钨钼铅锌异常的空间分布成为良好的构造找矿标志,并可为本地区及中国东部进一步开展此类矿床找矿勘查所借鉴。 |
| 英文摘要: |
| Abstract:Hundreds of deposits and mine occurrences have been found in the Lushi area,which is located at the intersection of the North China block
and Qinling tectonic belt,forming a unique metallogenetic background of geological structure. The Mesozoic porphyry molybdenum deposits and the associated vein-type lead-zinc deposits in East Qinling are presented in the fault intersection,swelling part and bending portions of faults where large mines and high-grade ores formed. The structural ore-controlling characteristics are supported by geochemical evidence in the Lushi area. The survey of water system sediments indicates that the geochemical anomalies of tungsten,molybdenum,lead and zinc are of large scales with high intensity and clear sub-bands and clear concentration centers that have a close relationship with regional fault structure systems. The spatial distribution of the geochemical anomalies of tungsten,molybdenum,lead and zinc in the Lushi area are effective prospecting indicators which can be used as reference for further exploration and development of similar deposits in the Lushi area and eastern China. |
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