| 张遂,沈红钱,冯开友,杨炳南,沈小庆,袁良军,谢兴友,姚希财,蔡国荣,曾飞,吴应值.关于贵州松桃高地超大型锰矿床冷水犁式断层(F3)特征再认识[J].贵州地质,2021,38(2):139-145 |
| 关于贵州松桃高地超大型锰矿床冷水犁式断层(F3)特征再认识 |
| A New Understanding of the Characteristics of Cooling Water Listric Fault(F3)in the Super Large Manganese Deposit in Songtao Gaodi，Guizhou |
| 投稿时间：2021-01-05 |
| DOI： |
| 中文关键词: 犁式断层 特征 新认识 高地锰矿 贵州松桃 |
| 英文关键词:Listric fault Characteristic New understanding Gaodi manganese ore Songtao,Guizhou |
| 基金项目:黔科合平台人才[2018]5618、黔科合平台人才[2020]6019、黔地矿科合〔2020〕1号、黔地矿科合[2020]03号、黔科合支撑[2019]2868联合资助。 |
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| 中文摘要: |
| 本文结合松桃高地超大型锰矿大精查(勘探)成果对矿区内冷水犁式断层(F3)特征进行深入研究，对其特征有了新的认识。F3犁式断层上陡、下缓，断层在上部的碳酸盐岩脆性层及相对脆性层中较陡，倾角随深度逐渐变缓，进入砂页岩等韧性层后迅速变缓，进入到大塘坡组泥页岩后断层滑脱面趋于平缓，断面倾角与地层倾角基本一致，变为层间滑动。音频大地电磁测深与宽频大地电磁测深资料的融合处理与解释也支持这种新的认识。F3犁式断层延伸至大塘坡组地层后可能尖灭，并未对含锰岩系造成破坏，使得深部隐伏锰矿体得以较好的保存，如这一认识成立，则高地超大型锰矿床北西深部仍具有较大找矿潜力。 |
| 英文摘要: |
| In this paper，combined with the results of a large-scale detailed survey(exploration)of the Songtao Gaodi super large manganese deposit，the characteristics of the Cooling Water Listric Fault(F3)in the mining area are deeply studied，and a new understanding of its characteristics is obtainedThe F3 Listric Fault is steep at the top and slow at the bottom，and the fault is steeper in the upper carbonate brittle layer and relatively brittle layerThe dip angle gradually slows down with depthAfter entering the arenaceous shale，it quickly slows down，it quickly slows down，and enters after the argillaceous shale of the Datangpo Formation，the slippage surface of the fault tends to be gentle，and the dip angle of the fault surface is basically the same as the dip angle of the stratum，which becomes interlayer glidingThis new understanding is supported by the fusion processing and interpretation of audio magnetotelluric sounding and broadband magnetotelluric sounding dataAfter the F3 Listric Fault extends to the Datangpo Formation，it may disappear without destroying the manganese-bearing rock series，so that the deep concealed manganese ore body can be better preservedIf this understanding is established，the northwestern deep part of the Gaodi super-large manganese deposit still has great prospecting potential |
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