| 黔东松桃西溪堡南华系大塘坡组超大型锰矿床地质特征与找矿预测 |
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| 引用本文： | 张遂,周琦,张平壹,沈红钱,杜远生.黔东松桃西溪堡南华系大塘坡组超大型锰矿床地质特征与找矿预测[J].地质科技通报,2015,34(6):8-16. |
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| 作者姓名： | 张遂 周琦 张平壹 沈红钱 杜远生 |
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| 作者单位： | 1. 贵州省地质矿产勘查开发局103地质大队, 贵州 铜仁 554300; |
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| 基金项目： | 国土资源部公益性行业科研专项(201411051)中国地质调查局项目(12120114016701) |
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| 摘 要： | 贵州松桃西溪堡锰矿床是近年运用古天然气渗漏沉积型锰矿床成矿模式与找矿模型理论发现的又一个隐伏超大型锰矿床。矿体呈似层状、层状产出,厚度与延展规模巨大。通过对西溪堡锰矿区中两界河组、含锰岩系地层柱状对比研究和含锰岩系、菱锰矿体和大塘坡组的沉积厚度等值线研究,发现控制超大型锰矿形成和分布的西溪堡地堑盆地长轴方向为北东60°左右,而非北东30°左右的地层走向。西溪堡地堑盆地中心相、过渡相和边缘相等古天然气渗漏喷溢沉积微相特征清楚,存在2个渗漏喷溢沉积中心。西溪堡地堑盆地锰矿找矿潜力巨大,预测其锰矿资源总潜力应是目前已控制锰矿资源量的2倍,是一个新的世界级超大型锰矿床。
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| 关 键 词： | 贵州省 南华纪 锰矿 找矿预测 |
| 收稿时间： | 2015-03-11 |
Geological Characteristics and Prospecting Prediction of Xixibao Super-large Manganese Deposit in Songtao,Eastern Guizhou |
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| Affiliation: | 1. 103 Geological Team, Guizhou Bureau of Geology and Mineral Exploration and Development, Tongren Guiyang 554300, China;2. Guizhou Bureau of Geology and Mineral Exploration and Development, Guiyang 550003, China;3. State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | Xixibao manganese deposit in Songtao is another concealed super-large manganese deposit which was found by the theory of ancient natural gas seepage sedimentary-type manganese ore-forming and exploration model in recent years.The orebody occurs as quasi-lamellar and stratiform structure,with huge thickness and extension scale.The prismatic comparison of manganese-bearing strata of Liangjiehe Formation in Xixibao manganese mining area and the sedimentary thickness isogram of manganese-bearing rock,together with the study of rhodochrosite orebody and Datangpo Formation,reveals that the long axis of Xixibao graben basin which controlled the formation and distribution of super-large manganese deposit is 60 degrees NE but not in the strike direction of NE at 30 degrees.The characteristics of center phase,transition phase,marginal facies and other ancient natural gas seepage eruption sedimentary microfacies are clear,with two seepage eruption sedimentary centers.With big exploration potential,Xixibao graben basin is a new super-large manganese deposit of world class and is predicted to possess the total manganese resources twice as much as its present controlled manganese resources. |
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