| 安徽省当涂县九连山铁矿地质特征与找矿标志 |
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| 引用本文： | 杨龙帅.安徽省当涂县九连山铁矿地质特征与找矿标志[J].地质找矿论丛,2022,37(4):429-436. |
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| 作者姓名： | 杨龙帅 |
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| 作者单位： | 华东冶金地质勘查研究院, 合肥 230088 |
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| 摘 要： | 多年来在宁芜地区发现了大量的玢岩型铁矿床。九连山铁矿位于和睦山铁矿与钟山铁矿之间,铁矿体主要产于三叠系黄马青组粉砂岩与闪长岩体的接触带,以及黄马青组的层间破碎带;矿区共有10个铁矿体,矿体呈似层状、透镜状,大部分为磁铁矿体,少量的赤铁矿体,矿石多为块状构造和浸染状构造。研究认为,九连山深部成矿的闪长岩体与和睦山的成矿岩体为同一岩体,九连山铁矿可作为和睦山式铁矿埋深较大的矿床实例,矿床类型属于玢岩铁矿中的接触交代型+热液充填型铁矿床。文章还对九连山铁矿的找矿标志进行了归纳。
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| 关 键 词： | 九连山铁矿 玢岩型铁矿 地质特征 找矿标志 安徽省 |
| 收稿时间： | 2022/7/25 0:00:00 |
| 修稿时间： | 2022/10/18 0:00:00 |
Geological characteristics and prospecting marks of Jiulianshan Fe deposit in Dangtu county, Anhui province |
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| YANG Long Shuai.Geological characteristics and prospecting marks of Jiulianshan Fe deposit in Dangtu county, Anhui province[J].Contributions to Geology and Mineral Resources Research,2022,37(4):429-436. |
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| Authors: | YANG Long Shuai |
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| Institution: | East China Institute of Metallurgical Geology and Exploration, Hefei 230088, China |
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| Abstract: | In Ningwu area many porphyrite-type Fe deposits have been discovered. One of the deposits is Jiulianshan Fe deposit located between Hemushan Fe deposit and Zhongshan Fe deposit. Thers are 10 ore bodies, generally stratoform or lenticular occurring mainly at the contact zone between siltstone of Triassic Huangmaqing formation and diorite and the inter-formational fractural zone of Huangmaqing formation. Most of them consist of magnetite, a few, hematite. The ore structure is mass or dissemination Comprehensive study shows that the Fe-ore-related Jiulianshan diorite intrusion and Hemushan intrusion are the same intrusion to depth. Jiulianshan Fe deposit can be taken as more deeply-seated example of Hemushan style-Fe deposit. It is a metasomatic +hydrothermal fluid-filling porphyrite type Fe deposit. In addition are summarized prospecting marks of the deposit. |
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| Keywords: | Jiulianshan Fe deposit porphyrite type Fe deposit geological characteristics prospecting mark Anhui province |
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