| 山东昌邑东部地区古元古代变质沉积型铁矿地质特征 |
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| 引用本文： | 王松涛,高美霞,万中杰,孙绍利.山东昌邑东部地区古元古代变质沉积型铁矿地质特征[J].山东国土资源,2007,23(1):45-48. |
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| 作者姓名： | 王松涛 高美霞 万中杰 孙绍利 |
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| 作者单位： | 山东省第四地质矿产勘查院,山东,潍坊,261021 |
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| 摘 要： | 山东昌邑东部地区铁矿分布在莱州-安丘磁异常铁成矿带内,该区发育着古元古代粉子山群小宋组及荆山群野头组祥山段含铁岩系,磁铁黑云变粒岩、磁铁石英岩、磁铁大理岩、磁铁蛇纹石化大理岩等含铁岩层发育在这2套含铁岩系中。目前,已发现有毛家寨、南任、常家屯及东辛庄-莲花山等矿床。铁矿体呈层状、似层状及透镜状,矿体产状与围岩基本一致,矿体长多为200~700m,厚多为2~15m,延深多为60~300m。矿石品位多为27%~33%,属酸性矿石。该矿床属于受含铁沉积建造及变质作用控制的变质沉积型矿床。
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| 关 键 词： | 地质特征 粉子山群小宋组 荆山群野头组祥山段 变质沉积铁矿 古元古代 昌邑东部 山东 |
| 修稿时间： | 2006-08-10 |
Geological Characteristics of Neoproterozoic Metamorphic Sedimentary Iron Deposit in East Part of Changyi Area in Shandong Province |
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| WANG Song-tao,GAO Mei-xi,WAN Zhong-jie and SUN Shao-li.Geological Characteristics of Neoproterozoic Metamorphic Sedimentary Iron Deposit in East Part of Changyi Area in Shandong Province[J].Land and Resources in SHANDONG Province,2007,23(1):45-48. |
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| Authors: | WANG Song-tao GAO Mei-xi WAN Zhong-jie and SUN Shao-li |
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| Institution: | No. 4 Exploration Institute of Geology and Mienral Resources, Shandong Weifang 261021, China |
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| Abstract: | Iron deposits in east part of Changyi in Shandong province distribute in Laizhou - Anqiu magnetic abnormal iron - forming belt. Iron - bearing rock series of Neoarchean Xiaosong formation in Fenzishan group and Xiangshan section of Yetou formation in Jingshan group developed in this area. Iron - bearing strata, such as magnetic biotitic granulites, magnetic granites, magnetic marble and magnetic serpentinuous marble developed in these two series of rocks. At present, Maojiazhai, Nanren, Changjiatun and Dongxinzhuang- Lianhuashan deposits have been found. Iron orebodies are stratified, statoid and pod -like types, and have the same orebody occurrence with its countryrocks. The length of orebody is 200-700m, the thickness is 2-15m, and the depth is 60-300m. Ore degree is 27%-33%, which belongs to acid orebody. This deposit belongs to metamorphic sedimentary type which is controlled by ironbearing sedimentary construction and metamorphism. |
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| Keywords: | Geological characteristics Xiaosong formation of Jingshan group Xiangshan section of Yetou formation in Jingshan group metamorphic sedimentary iron deposit Neoarchean east part of Changyi County Shandong province |
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