| 安徽当涂杨庄铁矿床地质地球化学特征与成因研究 |
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| 引用本文： | 金,明.安徽当涂杨庄铁矿床地质地球化学特征与成因研究[J].地质学刊,2014,38(2):206-218. |
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| 作者姓名： | 金 明 |
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| 作者单位： | 南京大学地球科学与工程学院 |
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| 摘 要： | 杨庄铁矿床位于宁芜中生代火山岩盆地西南段的钟姑山矿田内,属于宁芜地区玢岩型铁矿中次火山岩体与前火山岩系沉积岩接触带中的铁矿床。该矿床的主矿体呈层状、似层状、透镜状,产于闪长玢岩岩体与徐家山组接触带部位以及闪长（玢）岩岩体内部。矿石矿物主要为磁铁矿、假象赤铁矿,脉石矿物主要为辉石、角闪石、长石、绿泥石、石膏、绢云母等。通过对该矿床地质地球化学特征和控矿因素的研究,认为杨庄铁矿床成矿物质主要来源于岩浆,属于玢岩型热液充填-交代型铁矿床。
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| 关 键 词： | 地质地球化学特征 矿床成因 玢岩铁矿 安徽当涂 |
| 收稿时间： | 6/9/2013 12:00:00 AM |
| 修稿时间： | 2013/9/23 0:00:00 |
On geological and geochemical characteristics and genesis of iron deposit in Yangzhuang of Dangtu in Anhui |
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| JIN Ming.On geological and geochemical characteristics and genesis of iron deposit in Yangzhuang of Dangtu in Anhui[J].Jiangsu Geology,2014,38(2):206-218. |
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| Authors: | JIN Ming |
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| Institution: | JIN Ming( 1. School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China; 2. East China Geological Exploration Bu- reau of Nonferrous Metals in Jiangsu Province, Nanjing 210007, China) |
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| Abstract: | Yangzhuang iron deposit was located in Zhonggushan ore field in the Mesozoic volcanic basins in the southwest section of Ningwu (Nanjing to Wuhu), belonging to Nanjing-Wuhu porphyry-type ore. It was the second volcanic sedimentary rocks formed in the contact zone of iron ore deposit. The main ore bodies of this deposit were layered, stratoid, lenticular, and occurred in dioritic rock and contact zones of Xujiashan Formation and the interior of diorite (porphyry) rock. Host rocks were albitization, hornblende, carbonation, skarnization, etc. Ore minerals were mainly magnetite, martite and pyrite. The gangue minerals were mainly pyroxene, feldspar, chlorite, gypsum, sericite, etc. Yangzhuang iron deposit belonged to hydrothermal filling porphyrite type-metasomatic iron deposit. |
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| Keywords: | Geological and geochemical characteristics Deposit genesis Porphyrite iron mine Dangtu Anhui |
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