| 杨炳南,胡祥云,周琦,沈小庆,何帅,谢小峰,王家俊.华南南华纪古天然气渗漏沉积型锰矿AMT勘查技术方法研究[J].贵州地质,2018,35(4):369-375 |
| 华南南华纪古天然气渗漏沉积型锰矿AMT勘查技术方法研究 |
| An Audio-frequency Magnetotellurics Method Study on the Exploration Technology of Ancient Natural Gas Seepage Sedimentary-type Manganese Deposit of Nanhua Period in South China |
| 投稿时间：2018-09-05 |
| DOI： |
| 中文关键词: 古天然气渗漏沉积型锰矿床 音频大地电磁法 南华纪 |
| 英文关键词:Ancient Natural Gas Seep Manganese Deposit Audio-frequency Magnetotellurics Nanhua Period |
| 基金项目:贵州省锰矿资源预测评价科技创新人才团队(黔科合平台人才[2018]5618)，贵州省地质物探开发应用工程技术研究中心(黔科合平台人才[2016]5401)及贵州省地质矿产勘查开发局地质科研项目(黔地矿科合[2016]07、黔地矿科合[2016]08)联合资助。 |
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| 中文摘要: |
| 华南南华纪“大塘坡式”锰矿位于上扬子东缘国家重要成矿区带。近年来，锰矿资源预测评价科技创新人才团队建立了锰矿内生外成裂谷盆地古天然气渗漏沉积成矿系统理论，研发了该类型锰矿床深部隐伏锰矿找矿预测关键技术。通过贵州铜仁松桃锰矿国家整装勘查区实践检验，新发现了4个世界级隐伏超大型锰矿床和一批大中型锰矿床，实现我国锰矿地质找矿有史以来的最大突破，改变了国家锰矿勘查开发格局。本文介绍了项目团队研发的该类型锰矿床深部隐伏锰矿找矿预测关键技术组合中的音频大地电磁测量(AMT)勘查技术，主要包括数据采集和预处理关键技术、最佳反演模式和参数优选关键技术及建立音频大地电磁测量地球物理找矿预测间接模型等方面，以期能对华南其他地区的南华纪锰矿以及相似成矿地质背景条件下的其他时代锰矿找矿预测提供借鉴和参考。 |
| 英文摘要: |
| The “Datangpo type” manganese deposit during the Nanhua period in south china is located in the southeast margin of Yangtze Block.In recent years, the theory of ancient natural gas seepage metallogenic of emerge inside and form outside manganese rift basin were found, the key technology for Prospecting and Prediction of buried manganese ore in the deep part of this type of manganese ore deposit was researched.Through the practice of Songtao manganese national fully equipped exploration district in Tongren，Guizhou，it has founded 4 hidden world-class supergiant and a series of large-medium sized manganese deposits，its the biggest breakthrough of manganese exploration in the country and changed the national manganese ore exploration and development pattern.In this paper，it introduces the technical guide for AMT exploration of the key technical combination of prospecting and prediction for the deep concealed manganese deposit by the project team，it mainly includes data collection and pretreatment，the best inversion model and parameter optimization，establishment of geophysical exploration mode for audio-frequency Magnetotellurics.It is expected to provide a reference for the prospecting and prediction of Nanhua period manganese deposit in other areas of south China and other times under similar metallogenic geological background. |
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