| 朝鲜半岛平南盆地中元古代岩浆事件 |
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| 引用本文： | 朴贤旭,翟明国,杨正赫,金正男,郑哲珠,吴福元,金胜贤,韩龙渊,朴雄,金明哲,侯泉林.朝鲜半岛平南盆地中元古代岩浆事件[J].岩石学报,2016,32(10):3033-3044. |
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| 作者姓名： | 朴贤旭 翟明国 杨正赫 金正男 郑哲珠 吴福元 金胜贤 韩龙渊 朴雄 金明哲 侯泉林 |
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| 作者单位： | 朝鲜国家科学院地质研究所, 平壤 3812100,中国科学院地质与地球物理研究所, 北京 100029,朝鲜国家科学院地质研究所, 平壤 3812100,朝鲜国家科学院地质研究所, 平壤 3812100,朝鲜国家科学院地质研究所, 平壤 3812100,中国科学院地质与地球物理研究所, 北京 100029,朝鲜国家科学院地质研究所, 平壤 3812100,朝鲜国家科学院地质研究所, 平壤 3812100,朝鲜国家科学院地质研究所, 平壤 3812100,朝鲜国家科学院地质研究所, 平壤 3812100,中国科学院计算地球动力学重点实验室, 中国科学院大学地球科学学院, 北京 100049 |
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| 基金项目： | 本文受重大国际合作项目（41210003）资助. |
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| 摘 要： | 朝鲜平南盆地翁津地区发育中元古代黄海群和同时期(称之为瓮津期)花岗岩,花岗岩体侵入于黄海群。本文采用锆石原位微区U-Pb定年技术,对黄海群中的酸性火山岩及花岗岩进行了年龄测试。获得的数据表明,黄海群中下部层位及上部层位的酸性火山岩分别在1235±5Ma和1203±7Ma喷发,由此说明黄海群的沉积时代应为中元古代,而不是传统上认为的古元古代;两个翁津期花岗岩体(翁津和黄衣山岩体)的侵位年龄分别为1251±22Ma和1248±13Ma,为中元古代花岗质岩浆活动的产物。上述1251~1203Ma年龄的获得,表明朝鲜半岛发育中元古代岩浆作用,从而明确朝鲜黄海裂谷与华北东缘裂谷在时间上具有同期性,同时也表明中国华北与朝鲜在中元古代具有类似的发展历史。
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| 关 键 词： | 朝鲜半岛 平南盆地 瓮津期花岗岩 黄海群 中元古代 |
| 收稿时间： | 2016/5/20 0:00:00 |
| 修稿时间： | 2016/8/24 0:00:00 |
Meso-Proterozoic magmatism event in the Pyongnam Basin, Korean Peninsula. |
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| PARK HyoNuk,ZHAI MingGuo,YANG JongHyok,KIM JongNam,JONG CholSu,WU FuYuan,KIM SungHyon,HAN RyongYon,PARK Ung,KIM MyongChol and HOU QuanLin.Meso-Proterozoic magmatism event in the Pyongnam Basin, Korean Peninsula.[J].Acta Petrologica Sinica,2016,32(10):3033-3044. |
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| Authors: | PARK HyoNuk ZHAI MingGuo YANG JongHyok KIM JongNam JONG CholSu WU FuYuan KIM SungHyon HAN RyongYon PARK Ung KIM MyongChol and HOU QuanLin |
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| Institution: | Institute of Geology, State Academy of Sciences, Pyongyang 3812100, DPR Korea,Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China,Institute of Geology, State Academy of Sciences, Pyongyang 3812100, DPR Korea,Institute of Geology, State Academy of Sciences, Pyongyang 3812100, DPR Korea,Institute of Geology, State Academy of Sciences, Pyongyang 3812100, DPR Korea,Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China,Institute of Geology, State Academy of Sciences, Pyongyang 3812100, DPR Korea,Institute of Geology, State Academy of Sciences, Pyongyang 3812100, DPR Korea,Institute of Geology, State Academy of Sciences, Pyongyang 3812100, DPR Korea,Institute of Geology, State Academy of Sciences, Pyongyang 3812100, DPR Korea and Key Laboratory of Computational Earth Dynamics, Chinese Academy of Sciences;College of Earth Sciences, University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Paleoproterozoic Hwanghae Group and granites were developed in Ongjin area, southwestern part of the Pyongnam Basin, Korean Peninsula. The granites intruded into the Hwanghae Group. We obtained zircon LA-ICP-MS U-Pb isotopic data of four samples from two felsic volcanic rocks from Hwanghae Group and two representative granitic intrusions to determine their formation ages. New zircon U-Pb ages indicate that the felsic volcanic rocks located in lower and upper layer of Hwanghae Group were erupted in 1235±5Ma and 1203±7Ma, respectively, which suggest that the deposition age of the Hwanghae Group was Mesoproterozoic, not the traditional thought of Paleoproterozoic. Two granite plutons, Ongjin and Hwangyuisan, emplaced at 1251Ma and 1246Ma, respectively. The magmatism time around 1251~1203Ma obtained in this study demonstrates the development of Mesoproterozoic magmatism on the Korean Peninsula. It indicates that Hwanghae rift has concurrent evolution history with the Eastern Marginal Rift of North China Craton. |
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| Keywords: | Korean Peninsula Pyongnam Basin Mesoproterozoic granites Hwanghae Group Mesoproterozoic |
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