| 刘灵,覃英,石庆鹏,蒋天锐,雷政权.贵州从江高增锰矿床地质特征及找矿潜力[J].贵州地质,2019,36(2):128-136 |
| 贵州从江高增锰矿床地质特征及找矿潜力 |
| Geological Characteristics and Its Prospecting Potential of the Gaozeng Manganese Deposit in the Congjiang Area, Guizhou Province |
| 投稿时间：2018-11-30 |
| DOI： |
| 中文关键词: 锰矿 矿床特征 找矿潜力 贵州从江 |
| 英文关键词:manganese deposits ore deposit characteristics prospecting potential Congjiang |
| 基金项目:中国地质调查局《中国矿产地质志·贵州卷》(项目编号:DD20190379-28)和贵州省从江县高增锰详查项目共同资助。 |
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| 中文摘要: |
| 从江高增锰矿处于区域性雷公岭向斜北西翼次级岜扒向斜展布区，区内断裂构造主要为NE、NNE展布，该矿床是黔东南地区现今唯一具有中型规模的海相沉积碳酸锰矿床，其矿体呈层状、似层状产于南华系大塘坡组第一段黑色岩系中，矿石自然类型为碳酸锰矿石，按结构构造划分为块状矿石和条带状矿石，矿石工业类型划分低磷低铁富锰矿石和高磷低铁贫锰矿石。通过高增锰矿床与黔东铜仁松桃“大塘坡式”锰矿床相比，其赋矿层位、矿体特征、矿物组分、化学成分、矿石结构构造和矿石类型相同，而矿床规模相差甚远、成锰盆地沉积相分带特征不明显。通过成锰盆地特征、沉积环境和成矿条件分析，高增锰矿深部及外围地区仍具较大找矿潜力。 |
| 英文摘要: |
| The Gaozeng manganese deposit located in Bapa syncline, which is a part of the Northwest limb of the regional Leigongshan syncline, and its dominant fault structures are NE and NNE-trending. The Gaozeng manganese deposit belongs to marine carbonate-type, and is the only one middle scale manganese deposit discovered in the Qiandongnan area. Ore bodies are stratiform or stratoid, hosted in the black shales of the first part of Datangpo Formation, Nanhua System. The natural type of ores is manganese carbonate, and the ores display massive and banded textures. Based on ore industry type, two kinds of ores are discovered: phosphorus and iron-depleted and manganese-enriched ores.Comparing 111 manganese deposit with “Datangpo” manganese deposit in Songtao area, Tongren City, Eastern Guizhou Province, the ore-hosting horizon, ore body characteristics, mineral composition, chemical composition, ore structure and ore type of Gaozeng manganese deposit are the same as those of “Datangpo Type” manganese deposit, but the deposit size is quite different from that of “Datangpo Type” manganese deposit, and Gaozeng manganese deposit is deposited in a manganese basin. The characteristics of facies zoning are not obvious.Based on the analysis of the characteristics of Manganese-Forming basin, depositional environment and metallogenic conditions, the Gaozeng manganese deposit still has great prospecting potential in deep and peripheral areas. |
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