| 山东省平邑县大井头钾镁煌斑岩地质特征及金刚石含矿性 |
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| 引用本文： | 王玉峰,周军,王建平,朱成河,杨献忠.山东省平邑县大井头钾镁煌斑岩地质特征及金刚石含矿性[J].地质通报,2019,38(1):93-102. |
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| 作者姓名： | 王玉峰 周军 王建平 朱成河 杨献忠 |
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| 作者单位： | 山东省第七地质矿产勘查院, 山东 临沂 276006,山东省第七地质矿产勘查院, 山东 临沂 276006,地质过程与矿产资源国家重点实验室/中国地质大学(北京)地球科学与资源学院, 北京 100083,山东省第七地质矿产勘查院, 山东 临沂 276006,中国地质调查局南京地质调查中心, 江苏 南京 210016 |
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| 基金项目： | 中央地质勘查基金项目《山东省费县朱田地区金刚石普查》（编号：2013371001）和中国地质调查局项目《华北和扬子地区金刚石矿产调查》（编号：DD20160059） |
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| 摘 要： | 平邑县大井头岩体发现以来,其岩性界定和金刚石含矿性始终悬而未解。近期针对其深部施工2个钻孔,在钻孔人工重砂样中选获原生金刚石3颗。结合岩矿鉴定、岩石地球化学和重砂矿物特征,认为大井头岩体为含金刚石的钾镁煌斑岩管,岩体下游的金刚石及其重砂矿物异常应由该岩体引起。结合周边存在的金刚石指示矿物异常和多处尚未查明的疑似岩体,认为该地区具有广阔的金刚石原生矿找矿前景。
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| 关 键 词： | 钾镁煌斑岩 地质特征 金刚石含矿性 平邑县大井头 |
| 收稿时间： | 2018/6/10 0:00:00 |
| 修稿时间： | 2018/7/9 0:00:00 |
A discussion on geological characteristics and diamond ore-bearing potentiality of the Dajingtou lamporphite, Pingyi County, Shandong Province |
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| WANG Yufeng,ZHOU Jun,WANG Jianping,ZHU Chenghe and YANG Xianzhong.A discussion on geological characteristics and diamond ore-bearing potentiality of the Dajingtou lamporphite, Pingyi County, Shandong Province[J].Geologcal Bulletin OF China,2019,38(1):93-102. |
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| Authors: | WANG Yufeng ZHOU Jun WANG Jianping ZHU Chenghe and YANG Xianzhong |
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| Institution: | No.7 Exploration Institute of Geology and Mineral Resources, Linyi 276006, Shandong, China,No.7 Exploration Institute of Geology and Mineral Resources, Linyi 276006, Shandong, China,State Key Laboratory of Geological Process and Mineral Resources, School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China,No.7 Exploration Institute of Geology and Mineral Resources, Linyi 276006, Shandong, China and Nanjing Center, China Geological Survey, Nanjing 210016, Jiangsu, China |
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| Abstract: | Since the discovery of the Dajingtou volcanic rock in Pingyi County, the problem of its lithology and the ore-bearing potentiality of diamond has not been solved. Recently, two boreholes unveiled fresh spotted rocks at the depth of 580m or so, and three diamonds were selected from them. According to the rock features, lithogeochemistry and heavy mineral characteristics, it is considered that the Dajingtou volcanic rock is lamproite-bearing diamond, which might have caused the anomalies of diamonds and heavy minerals in the lower reaches of the tube. Combined with a number of suspected lamprophyre exposed in surrounding areas, it is considered that there is a great potential for primary diamond ore. |
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| Keywords: | lamproite geological features diamond ore-bearing potentiality Dajingtou of Pingyi County |
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